{"title":"pH Meters, EC Meters \u0026 Grow Room Testers","description":"\u003cp\u003eMeasuring is the cheapest way to avoid problems. Knowing the pH and strength of your nutrient solution, and the temperature and humidity in your tent, means you can fix issues before plants show them. We stock trusted Bluelab meters and a simple hygrometer for everyday checks.\u003c\/p\u003e\n\u003ch2\u003eHow to choose a meter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003epH: the key to nutrient uptake.\u003c\/strong\u003e Plants can only take up all the minerals they need when the pH of the solution is right. The \u003ca href=\"\/products\/bluelab-ph-pen-bluelab\"\u003eBluelab pH Pen\u003c\/a\u003e (£100) is a compact handheld pen that also measures solution temperature. Bluelab recommends a solution temperature of 18-22°C for root health. As a general rule of thumb, hydro and coco growers usually aim for a pH of around 5.5-6.5, and soil growers around 6.0-7.0. Always follow your nutrient manufacturer's guidance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEC\/CF: how strong is the feed?\u003c\/strong\u003e If conductivity is too low, plants may not get enough nutrients. Too high and they can dehydrate. The \u003ca href=\"\/products\/bluelab-cf-truncheon\"\u003eBluelab CF Truncheon Nutrient Meter\u003c\/a\u003e (£80) is the quickest way to check. Dip the probe in the solution and read the flashing lights. It needs no calibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature and humidity.\u003c\/strong\u003e The \u003ca href=\"\/products\/garden-king-hygrometer-with-probe\"\u003eGarden King Hygrometer with Probe\u003c\/a\u003e (£10) shows temperature and humidity, and its external probe takes readings at canopy level, where it matters.\u003c\/p\u003e\n\u003cp\u003eMost growers start with a pH pen and an EC\/CF meter, used together every time they mix a feed, plus a hygrometer left in the tent.\u003c\/p\u003e\n\u003ch2\u003eWhy buy from Black Country Systems\u003c\/h2\u003e\n\u003cp\u003eWe are a family-run hydroponics shop at Unit 2 Black Lake, West Bromwich, trading for over 10 years. You get free UK delivery on orders over £94.99, we price match, and you can come into the shop for advice from people who use this kit. Call 0121 553 7872 or \u003ca href=\"https:\/\/wa.me\/447877727772\"\u003emessage us on WhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eMeter FAQs\u003c\/h2\u003e\n\u003ch3\u003eDo I need both a pH meter and an EC meter?\u003c\/h3\u003e\n\u003cp\u003eThey measure different things. EC tells you how much feed is in the water and pH tells you whether plants can use it. Most growers check both.\u003c\/p\u003e\n\u003ch3\u003eDoes the Bluelab Truncheon need calibrating?\u003c\/h3\u003e\n\u003cp\u003eNo. Bluelab states that the Truncheon does not require calibration.\u003c\/p\u003e\n\u003ch3\u003eWhere should I put the hygrometer probe?\u003c\/h3\u003e\n\u003cp\u003eAt canopy height, out of direct light. That gives you the conditions your plants actually experience.\u003c\/p\u003e","products":[{"product_id":"garden-king-hygrometer-with-probe","title":"Garden King Hygrometer With Probe","description":"\u003cp\u003e\u003cstrong\u003eThe Garden King Hygrometer with Probe\u003c\/strong\u003e monitors temperature and humidity in your grow tent or room, so you can keep conditions where your plants need them.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDisplays temperature and humidity\u003c\/li\u003e\n\u003cli\u003eExternal probe for readings at canopy level\u003c\/li\u003e\n\u003cli\u003eHelps you spot heat and humidity problems early\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse more \u003ca href=\"\/collections\/grow-tools\"\u003egrow room tools\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eNeed advice? Visit our West Bromwich store, call \u003ca href=\"tel:01215537872\"\u003e0121 553 7872\u003c\/a\u003e or message us on WhatsApp - real growers, real advice.\u003c\/p\u003e","brand":"Garden King","offers":[{"title":"Default Title","offer_id":53871341306183,"sku":"bcs-0601","price":10.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/GardenKingHygrometerWithProbe2.png?v=1778150014"},{"product_id":"bluelab-cf-truncheon","title":"Bluelab CF Truncheon Nutrient Meter","description":"\u003cp\u003eTruncheon Nutrient Meter EC measurement It is essential when growing with a hydroponic solution to know what the strength of the solution is, before feeding your plants, and while they are growing. If the conductivity reading is too low, your plants may not be getting enough nutrients. If the conductivity reading is too high, plants can dehydrate. Understanding the conductivity of the nutrient solution takes the guesswork out of feeding plants. It will also save you money! Using the Bluelab Truncheon® Nutrient Meter is the fastest and easiest way to measure the conductivity! To take a reading of your solution - simply place the probe head into the solution and the reading is indicated by the flashing lights. Calibration of the Truncheon Nutrient Meter is not required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":53871374631239,"sku":"bcs-0602","price":80.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/83693_-_bluelab_v2_truncheon_web_1_jpg.webp?v=1790845807"},{"product_id":"bluelab-ph-pen-bluelab","title":"Bluelab pH Pen Bluelab","description":"\u003cp\u003epH Pen pH measurement Plants get their nutrients from minerals, but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH. The Bluelab pH Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended. The hand held pH pen provides a compact quick and handy way to manage the success of your crop to ensure maximum uptake of nutrients. Teamed with our Bluelab ppm or EC Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":53871382364487,"sku":"bcs-0603","price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/0082\/0295\/files\/bluelab-nutrient-management-bluelab-ph-penplus-replaceable-probe-ph-meter-uk-1259464776_png.webp?v=1790846129"}],"url":"https:\/\/blackcountrysystems.com\/collections\/meters-and-testers.oembed","provider":"Black Country Systems","version":"1.0","type":"link"}