{"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. Clean water barely conducts at all, and the more feed you dissolve, the higher the reading climbs, so it is a quick way to check your mix.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt comes pre-calibrated with automatic temperature compensation and a little carry case, so it is ready to use the moment it arrives.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can check with an EC pen\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFeed strength in a countertop hydroponic garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTap water and rainwater before you add any feed\u003c\/li\u003e\n\u003cli\u003eLiquid feed for tomatoes and chillies in pots\u003c\/li\u003e\n\u003cli\u003eSalt levels in a self-watering reservoir over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy this EC pen is a good first meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide range.\u003c\/strong\u003e 0 to 9,990µS\/cm, which covers everything from rainwater to strong feed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate.\u003c\/strong\u003e ±2%, with automatic temperature compensation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-calibrated.\u003c\/strong\u003e Ready to use straight from the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable.\u003c\/strong\u003e A small screwdriver is included for calibrating later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButton cell powered.\u003c\/strong\u003e Replaceable battery and a protective carry case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eEC meter questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat EC should hydroponic water be?\u003c\/strong\u003e\u003cbr\u003e\nHerbs and salad usually like a gentle EC of about 0.8 to 1.6mS\/cm (800 to 1,600µS\/cm). 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. Your plants will notice.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow Gadgets","offers":[{"title":"Default Title","offer_id":60146785255808,"sku":"GGECMD","price":19.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/ecpen-00.jpg?v=1793882021","url":"https:\/\/theindoorgardencentre.co.uk\/products\/grow-gadgets-digital-ec-meter-pen","provider":"The Indoor Garden Centre","version":"1.0","type":"link"}