{"title":"Tools \u0026 Accessories","description":"\u003cp\u003eSmall kit that makes indoor growing easier: plug-in timers for lights, seed trays and propagators for starting herbs and salads, and simple meters to keep an eye on the room.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThese are the quiet helpers Emma reaches for once the stand and light are in place. No warehouse kit. Just practical bits that keep plants watered, warm and on a steady routine.\u003c\/p\u003e","products":[{"product_id":"24-hour-plug-in-timer-for-grow-lights","title":"24 Hour Plug-In Timer for Grow Lights (Mechanical)","description":"\u003cp\u003eThe Grow Gadgets 24 Hour Timer is a simple \u003cstrong\u003eplug in timer for grow lights\u003c\/strong\u003e: plug it into the wall, plug your light into it, and it switches on and off for you in 30-minute steps, every day.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt’s the small, unglamorous thing that makes indoor growing feel easy. No more remembering to switch the light on before school, or finding it still glowing at midnight. Your herbs simply get the same gentle rhythm, day after day.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA grow light timer that gives your plants a steady day and night\u003c\/h2\u003e\n\u003cp\u003ePlants love routine, much like children do. A regular day of light followed by a proper night’s rest keeps seedlings sturdy and herbs leafy, and it means one less thing on your mind during a busy week.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eSetting it is wonderfully hands-on: you push down little pins around the dial for each half hour you want the light on. It’s a lovely way to show children how days and nights work, and even little hands can help.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can use your timer for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGrow lights over herbs, seedlings and microgreens\u003c\/li\u003e\n\u003cli\u003ePlant stand and under-shelf lights\u003c\/li\u003e\n\u003cli\u003eA lamp while you’re away, so the house looks lived in\u003c\/li\u003e\n\u003cli\u003eFairy lights at Christmas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eSet it once and let your plants keep their rhythm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to set.\u003c\/strong\u003e 48 push-pin settings around a 24-hour dial, in 30-minute steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo screens or apps.\u003c\/strong\u003e Mechanical and simple: what you see is what it does.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with any plug-in light.\u003c\/strong\u003e Ideal for LED bars, panels and strips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-wearing.\u003c\/strong\u003e A tough little timer built for daily use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand you can trust.\u003c\/strong\u003e Grow Gadgets, from the Eden range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeace of mind.\u003c\/strong\u003e Your lights run to the same routine even when life gets busy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eYour questions answered\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow long should I leave grow lights on?\u003c\/strong\u003e\u003cbr\u003e\nFor most seedlings and leafy herbs, around 14 to 16 hours a day with a dark night is a good starting point.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I set it?\u003c\/strong\u003e\u003cbr\u003e\nTurn the dial to the current time, push down the pins for every half hour you want the light on, and plug your light in.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it with more than one light?\u003c\/strong\u003e\u003cbr\u003e\nYes, if your lights daisy-chain from one plug, or with a suitable extension lead, staying within your socket’s safe load.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with LED grow lights?\u003c\/strong\u003e\u003cbr\u003e\nYes. It works with any plug-in grow light, from small LED bars to panels and strips, as well as everyday lamps.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMechanical 24-hour plug-in timer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSettings\u003c\/th\u003e\n\u003ctd\u003e48, in 30-minute intervals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorks with\u003c\/th\u003e\n\u003ctd\u003eAny plug-in grow light or lamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrow Gadgets, from the Eden range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003e1 × Grow Gadgets 24 Hour Timer.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSet it once, and let your indoor garden keep its own gentle sunrise and sunset.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow Gadgets","offers":[{"title":"Default Title","offer_id":60144170598784,"sku":"GG24HGRMT","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/timer24-00.jpg?v=1793881882"},{"product_id":"grow-gadgets-digital-thermometer-hygrometer","title":"Grow Gadgets Digital Thermometer \u0026 Hygrometer for Plants","description":"\u003cp\u003eThe Grow Gadgets \u003cstrong\u003edigital hygrometer thermometer\u003c\/strong\u003e is a palm-sized, battery-powered monitor that shows temperature (-10 to 50°C) and humidity (10 to 99%) with min\/max memory, so you know exactly what your houseplants and seedlings are living in.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIs the bathroom fern happy? Is the windowsill too cold for the seed trays at night? Pop this little screen on the shelf and, by morning, the min\/max memory tells you the whole story: the coldest dip, the warmest afternoon, the driest air.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA digital hygrometer and thermometer for happy plants\u003c\/h2\u003e\n\u003cp\u003ePlants can’t tell us when they’re too cold or the air’s too dry, but they show it in crispy leaf tips and slow growth. A simple reading takes the guesswork out, so you can move a plant, mist it or open a window before it struggles.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt’s a brilliant home-education tool too. Track the temperature and humidity in different rooms for a week, chart the results and discover which spot your plants should love most.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat your hygrometer helps with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFinding the right humidity for ferns, calatheas and tropicals\u003c\/li\u003e\n\u003cli\u003eChecking night-time lows on a seed-tray windowsill\u003c\/li\u003e\n\u003cli\u003eKnowing when to mist, humidify or ventilate\u003c\/li\u003e\n\u003cli\u003eKeeping propagators from getting too hot\u003c\/li\u003e\n\u003cli\u003eScience projects charting temperature and humidity at home\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eSmall screen, big peace of mind\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo readings in one.\u003c\/strong\u003e Temperature and relative humidity side by side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin\/max memory.\u003c\/strong\u003e See the overnight lows and daytime highs you’d otherwise miss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e°C or °F.\u003c\/strong\u003e Switch at the press of a button.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClock and alarm.\u003c\/strong\u003e 12 or 24-hour time display with a daily alarm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo cables.\u003c\/strong\u003e Runs on a single AAA battery, for roughly 12 months of typical use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStand or hang.\u003c\/strong\u003e Sits on a shelf or mounts on a wall.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHumidity and houseplants: your questions answered\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the ideal humidity for houseplants?\u003c\/strong\u003e\u003cbr\u003e\nMany houseplants are happy at around 40 to 60% humidity; tropical plants such as calatheas, ferns and orchids prefer 60% or more.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow accurate is it?\u003c\/strong\u003e\u003cbr\u003e\nTemperature is accurate to about ±1°C and humidity to about ±5% RH, which is ideal for home growing.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should I put a hygrometer?\u003c\/strong\u003e\u003cbr\u003e\nAt plant height, away from radiators, direct sun and grow lights, so it reads what your plants feel.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does min\/max mean?\u003c\/strong\u003e\u003cbr\u003e\nIt records the lowest and highest readings since you last reset it, so you can spot cold nights and dry afternoons.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDigital thermometer and hygrometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e-10 to 50°C (±1°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHumidity range\u003c\/th\u003e\n\u003ctd\u003e10–99% RH (±5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eLCD, °C\/°F, min\/max memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClock\u003c\/th\u003e\n\u003ctd\u003e12\/24-hour with daily alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e1 × AAA battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eDesktop stand or wall mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrow Gadgets, from the Eden range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003e1 × Grow Gadgets digital thermometer and hygrometer.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eA quick glance each morning, and plants that live in just the right air.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow Gadgets","offers":[{"title":"Default Title","offer_id":60144307143040,"sku":"GGDH","price":14.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/thermo-00.jpg?v=1793882018"},{"product_id":"grow-gadgets-digital-ec-meter-pen","title":"Grow Gadgets Digital EC Meter Pen","description":"\u003cp\u003eThe Grow Gadgets pen is a simple \u003cstrong\u003eEC meter for hydroponics\u003c\/strong\u003e that tells you how strong your feed is. Dip it in, and in a few seconds you know whether the water is too weak, too rich or just right.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt takes the worry out of feeding herbs, salad and tomatoes, and it is a small, friendly tool that fits in a pocket.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA one-button EC meter for hydroponics and feeding\u003c\/h2\u003e\n\u003cp\u003eEC stands for electrical conductivity. 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Tomatoes and chillies like a little more. Follow your feed’s chart.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I calibrate an EC meter?\u003c\/strong\u003e\u003cbr\u003e\nDip it in an EC calibration solution such as 1.413mS\/cm and adjust the screw until it matches. Check it every month or so.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it for soil?\u003c\/strong\u003e\u003cbr\u003e\nIt reads liquids. Test the water running out of a pot, or mix compost with distilled water and test that.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I look after it?\u003c\/strong\u003e\u003cbr\u003e\nRinse the probe with clean water after use and store it dry in the case.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasures\u003c\/th\u003e\n\u003ctd\u003eElectrical conductivity (EC) of water and liquid feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003e0 to 9,990µS\/cm (0 to 9.99mS\/cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature compensation\u003c\/th\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalibration\u003c\/th\u003e\n\u003ctd\u003ePre-calibrated; adjustment screwdriver included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eReplaceable button cell battery; no mains plug needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrow Gadgets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne digital EC pen, protective cap, calibration screwdriver and carry case.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eJust the right feed, every time. 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Automatic temperature compensation keeps readings honest whether the water is cool or warm.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt charges by USB-C, so there are no fiddly batteries, and one charge lasts for months of occasional checks.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can test with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe water in a countertop hydroponic garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTap water and rainwater before feeding houseplants\u003c\/li\u003e\n\u003cli\u003eFeed strength in watering cans and self-watering reservoirs\u003c\/li\u003e\n\u003cli\u003ePond or aquarium water, for a lovely home education project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy we like the Spider Farmer meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive readings.\u003c\/strong\u003e pH, EC, TDS, temperature and salinity in one pen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate.\u003c\/strong\u003e ±0.05 pH, with ±2% on EC and TDS readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 sealed.\u003c\/strong\u003e Waterproof and dustproof, with a cap to protect the probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable.\u003c\/strong\u003e 600mAh battery charged by USB-C, rated for about 300 charges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration included.\u003c\/strong\u003e Buffer powders at pH 4.00, 6.86 and 9.18 to keep it accurate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH meter questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pH should hydroponic water be?\u003c\/strong\u003e\u003cbr\u003e\nMost herbs, salad and vegetables are happiest between pH 5.5 and 6.5. Check after adding feed, then adjust gently if needed.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between EC and TDS?\u003c\/strong\u003e\u003cbr\u003e\nBoth show how much feed is dissolved in the water. EC measures conductivity; TDS converts it into parts per million. Use whichever your feed chart gives.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate a pH meter?\u003c\/strong\u003e\u003cbr\u003e\nEvery few weeks with regular use, or whenever readings seem odd. Mix the included powders with distilled water.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I look after the probe?\u003c\/strong\u003e\u003cbr\u003e\nRinse it in clean water after each use, keep the cap on and don’t let it dry out.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e181 × 44 × 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003epH\u003c\/th\u003e\n\u003ctd\u003e0.01 to 14.00, resolution 0.01, accuracy ±0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEC\u003c\/th\u003e\n\u003ctd\u003e0 to 9,999µS\/cm and 10 to 200mS\/cm, accuracy ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTDS\u003c\/th\u003e\n\u003ctd\u003e0 to 9,990ppm and 10 to 200ppt, accuracy ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature\u003c\/th\u003e\n\u003ctd\u003e0 to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSalinity\u003c\/th\u003e\n\u003ctd\u003e0 to 25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e600mAh rechargeable battery, USB-C, 5V 1A; no mains plug needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e1 year (Spider Farmer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity and measurements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5-in-1 meter\u003c\/td\u003e\n\u003ctd\u003e1, 181 × 44 × 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB-C cable\u003c\/td\u003e\n\u003ctd\u003e1, 60cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 4.00 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 6.86 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 9.18 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser manual\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eEverything listed above. A USB plug is not included; any phone charger works.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eClear water, happy roots, no guesswork. That’s the idea.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spider Farmer","offers":[{"title":"Default Title","offer_id":60146785288576,"sku":"SF5I1MM","price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/sf5in1-hero.jpg?v=1793881599"},{"product_id":"growth-technology-ec-calibration-solution-300ml","title":"Growth Technology EC Calibration Solution, 300ml","description":"\u003cp\u003eGrowth Technology \u003cstrong\u003eEC calibration solution\u003c\/strong\u003e is a liquid with a precise, known conductivity, so you can check that your EC meter is reading correctly and adjust it if it has drifted.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt is the quiet hero of hydroponic feeding. A correct EC reading means herbs and salad get the gentle feed they like, and tomatoes get a little more, without any guessing.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eEC calibration solution for meters and pens\u003c\/h2\u003e\n\u003cp\u003eChoose 1.413mS\/cm, the most common calibration point and close to the gentle feed strengths herbs and salad enjoy, or 2.76mS\/cm for checking meters at stronger feed levels.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eEach comes in a 300ml bottle, enough for many calibrations if you pour out a little each time.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWho needs EC calibration solution\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnyone with an EC pen or 5-in-1 meter\u003c\/li\u003e\n\u003cli\u003eHydroponic gardeners feeding a countertop garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTomato and chilli growers who feed by EC\u003c\/li\u003e\n\u003cli\u003eAnyone whose readings suddenly seem too high or low\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow to check your EC meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePour a little into a clean cup.\u003c\/strong\u003e Keep the bottle pure by never dipping the meter straight in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse the probe.\u003c\/strong\u003e Use distilled water and shake it dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDip and wait.\u003c\/strong\u003e Let the reading settle for a few seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust to match.\u003c\/strong\u003e Set the meter to 1.413 or 2.76, depending on your bottle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscard the used solution.\u003c\/strong\u003e Fresh solution each time keeps it accurate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eEC calibration questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich EC calibration solution do I need?\u003c\/strong\u003e\u003cbr\u003e\n1.413mS\/cm (1,413µS\/cm) suits most home meters. Choose 2.76mS\/cm if you mainly feed at higher strengths or your meter asks for it.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate an EC meter?\u003c\/strong\u003e\u003cbr\u003e\nAbout once a month with regular use, and whenever readings look odd.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs EC calibration solution the same as pH buffer?\u003c\/strong\u003e\u003cbr\u003e\nNo. pH buffer checks acidity; EC solution checks conductivity. A 5-in-1 meter may need both.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I store it?\u003c\/strong\u003e\u003cbr\u003e\nKeep the cap tight, the bottle cool and out of sunlight.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003e1.413mS\/cm, 300ml; 2.76mS\/cm, 300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eCalibrating and checking EC and TDS meters, pens and controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable for\u003c\/th\u003e\n\u003ctd\u003eHydroponics, coco and soil growers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrowth Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eSizes and measurements\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.413mS\/cm\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eMost home meters; gentle feed range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.76mS\/cm\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eChecking meters at stronger feed levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne 300ml bottle of your chosen standard.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeed with confidence, every single time.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Growth Technology","offers":[{"title":"1.413 mS\/cm, 300ml","offer_id":60146785386880,"sku":"GTECS1413300","price":4.0,"currency_code":"GBP","in_stock":true},{"title":"2.76 mS\/cm, 300ml","offer_id":60146785419648,"sku":"GTECS276300","price":4.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/GrowthTechnologyECStandard01_1.png?v=1793884261"},{"product_id":"growth-technology-ph-buffer-solution-300ml","title":"Growth Technology pH Buffer Solution, pH 4 or pH 7, 300ml","description":"\u003cp\u003eGrowth Technology \u003cstrong\u003epH buffer solution for calibration\u003c\/strong\u003e keeps your pH pen honest. Each 300ml bottle holds a liquid with a fixed, known pH, so you can check your meter and correct it if it has drifted.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eEvery pH meter wanders a little over time. A quick check every few weeks means the numbers you see are the numbers your plants actually get.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003epH buffer solution for calibration, in pH 4 and pH 7\u003c\/h2\u003e\n\u003cp\u003epH 7.00 is neutral and is the first point most meters calibrate to. pH 4.00 is the second point, for meters that use two-point calibration and for checking accuracy on the acidic side, where most hydroponic feeds sit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eBuy one of each for a full two-point calibration, or just the pH 7 if your pen only needs a single point.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWho needs a pH buffer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnyone with a pH pen or 5-in-1 meter\u003c\/li\u003e\n\u003cli\u003eHydroponic gardeners checking a countertop garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eGrowers of acid lovers such as blueberries and camellias\u003c\/li\u003e\n\u003cli\u003eHome educators running water chemistry experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow to calibrate with Growth Technology buffer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePour a little into a clean cup.\u003c\/strong\u003e Never dip the meter into the bottle itself, so the rest stays pure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse the probe first.\u003c\/strong\u003e Use distilled or clean water to avoid carrying anything across.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart with pH 7.00.\u003c\/strong\u003e Dip, wait for the reading to settle, and adjust the meter to 7.00.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThen check pH 4.00.\u003c\/strong\u003e Rinse, dip and adjust again if your meter offers two-point calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrow away the used solution.\u003c\/strong\u003e Used buffer is no longer reliable, so don’t pour it back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH calibration questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate my pH meter?\u003c\/strong\u003e\u003cbr\u003e\nEvery two to four weeks with regular use, and whenever readings seem strange.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need pH 4 and pH 7?\u003c\/strong\u003e\u003cbr\u003e\nMany meters calibrate at pH 7 and then pH 4 for best accuracy. Check your meter’s instructions; some only need one point.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does buffer solution last?\u003c\/strong\u003e\u003cbr\u003e\nKeep the cap tight and the bottle cool and out of sun. Once opened, use it within the period on the label.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reuse buffer solution?\u003c\/strong\u003e\u003cbr\u003e\nNo. Pour a small amount out for each calibration and discard it afterwards.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003epH 4.00 buffer, 300ml; pH 7.00 buffer, 300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eCalibrating and checking pH meters, pens and controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable for\u003c\/th\u003e\n\u003ctd\u003eHydroponics, coco and soil growers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrowth Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eSizes and measurements\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 4.00\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eSecond calibration point, acidic range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 7.00\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eFirst calibration point, neutral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne 300ml bottle of your chosen buffer.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eA small bottle that keeps every reading true. Clever.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Growth Technology","offers":[{"title":"pH 4.00, 300ml","offer_id":60146785583488,"sku":"GTPBSB4300","price":3.0,"currency_code":"GBP","in_stock":true},{"title":"pH 7.00, 300ml","offer_id":60146785616256,"sku":"GTPBSB7300","price":3.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/GrowthTechnologyPHBuffer02.png?v=1793884261"},{"product_id":"grow-gadgets-digital-ph-meter-pen","title":"Grow Gadgets Digital pH Meter Pen","description":"\u003cp\u003eThe Grow Gadgets pH pen is a simple \u003cstrong\u003edigital pH meter for plants\u003c\/strong\u003e: switch it on, dip it in the water or feed, and read the number. No colour charts and no squinting at test strips.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt is a lovely first meter for anyone starting out with hydroponics, rainwater butts or fussy houseplants that like their water just so.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA simple digital pH meter for plants and hydroponics\u003c\/h2\u003e\n\u003cp\u003eThe pen covers the full pH scale from 0 to 14 and adjusts for water temperature automatically, so a cold tap reading and a warm reservoir reading are both fair.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eWhen the electrode eventually wears out, it can be replaced rather than throwing the whole meter away, which is kinder to your purse and the planet. Pair it with our pH buffer solution and a bottle of gentle pH down, and you have everything you need.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhen a pH pen comes in handy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChecking water for a countertop herb garden or hydroponic bucket\u003c\/li\u003e\n\u003cli\u003eTesting rainwater and tap water for ericaceous plants like blueberries\u003c\/li\u003e\n\u003cli\u003eAdjusting feed for tomatoes, chillies and salad\u003c\/li\u003e\n\u003cli\u003eA hands-on science lesson about acids and alkalis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy this pH pen is so easy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 0 to 14 range.\u003c\/strong\u003e Reads anything from lemon juice to washing soda.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation.\u003c\/strong\u003e Fair readings in cool or warm water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-button use.\u003c\/strong\u003e Switch on, dip, read; an off button saves the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode.\u003c\/strong\u003e Swap the sensor rather than the whole pen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery powered.\u003c\/strong\u003e Small and light enough to keep in the potting shed drawer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH pen questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pH should water be for plants?\u003c\/strong\u003e\u003cbr\u003e\nMost plants like slightly acidic water. 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