{"product_id":"aqua-master-tools-p110-pro2-combo-pen-ph-ec-temperature","title":"Aqua Master Tools P110 Pro2 Combo Pen: pH, EC \u0026 Temperature","description":"\u003ch2\u003eP110 Pro2 pH and EC Meter Combo Pen\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAqua Master Tools P110 Pro2\u003c\/strong\u003e measures pH, EC and temperature in one waterproof pen. Those are the three readings that tell you whether a nutrient solution is right before it reaches your plants. It's the updated P110 Pro, now with AAA batteries, a clearer display and a calibration reminder.\u003c\/p\u003e\n\u003cp\u003eIt's the meter we'd suggest for most first setups. pH and EC answer different questions, and you need both answered every time you mix. EC tells you how strong the feed is. pH tells you whether the plant can actually take that feed up. One pen means one routine, one set of batteries and nothing to forget.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003epH\u003c\/strong\u003e controls nutrient uptake. Most hydroponic and coco feeds are designed to run between pH 5.5 and 6.5, soil a little higher. Outside that range, some nutrients become harder for roots to absorb, even when they're in the tank. The P110 Pro2 reads \u003cstrong\u003e0.1 to 14.0 pH to ±0.1\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEC\u003c\/strong\u003e measures how much dissolved fertiliser is in the water. Too low and plants go short; too high and roots struggle to take up water. The pen reads \u003cstrong\u003e0.0 to 19.99 mS\/cm\u003c\/strong\u003e, which covers every feed strength you'll use, with \u003cstrong\u003eautomatic temperature compensation\u003c\/strong\u003e from 0 to 50°C.\u003c\/p\u003e\n\u003cp\u003eUnlike most pH pens, the P110 Pro2 has a \u003cstrong\u003edry-storage electrode\u003c\/strong\u003e, so it doesn't need to sit in storage solution between uses. If you've ever had a pH pen die because the cap dried out, that's the problem this solves.\u003c\/p\u003e\n\u003cp\u003eIf you only need one of the two readings, the P50 Pro2 (pH) or E50 Pro2 (EC) costs less. If your feed chart is written in PPM, or you'd like a bigger screen and a carry case, the H600 Pro handheld meter is the step up.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH, EC and temperature\u003c\/strong\u003e in one pen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-point automatic pH calibration\u003c\/strong\u003e at pH 7.00 and 4.01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC calibrates with any EC calibration solution\u003c\/strong\u003e, so you can use whichever standard you already have\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry-storage electrode\u003c\/strong\u003e: no storage solution needed between uses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration reminder\u003c\/strong\u003e: an icon appears 30 days after your last calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable resolution\u003c\/strong\u003e of 0.01 or 0.1 for both pH and EC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 waterproof and floats\u003c\/strong\u003e: lift it straight back out if it goes in the tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-contrast display\u003c\/strong\u003e: white characters on black, readable in low light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns on 2 x AAA batteries\u003c\/strong\u003e, with a battery indicator and auto power-off after 8 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode\u003c\/strong\u003e: one combined pH and EC electrode, replaced in minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-year warranty\u003c\/strong\u003e on the meter and six months on the electrode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eYou get\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x P110 Pro2 pH, EC and temperature combo pen with protective cap and cap cord\u003c\/li\u003e\n\u003cli\u003e2 x AAA batteries\u003c\/li\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use it\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eBefore first use, soak the electrode in tap water for at least 12 hours. White salt crystals around the tip are normal and dissolve as it soaks.\u003c\/li\u003e\n\u003cli\u003eCalibrate pH with pH 7.00 solution, then pH 4.01. Calibrate EC with your EC solution. Rinse in tap water between each.\u003c\/li\u003e\n\u003cli\u003eMix your feed, adjust EC first, then pH. Adding nutrients changes pH, so correcting pH last saves you doing it twice.\u003c\/li\u003e\n\u003cli\u003eRinse the tip after each reading and recalibrate when the reminder appears.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e calibration solution loses accuracy once it's been used. Pour a little into a clean cup for each calibration and throw it away afterwards, rather than dipping the pen into the bottle.\u003c\/p\u003e\n\u003cp\u003eOrder online for delivery in plain, unbranded packaging, or use free Click \u0026amp; Collect from your local GroWell shop. If you're not sure which meter suits your setup, call or message the team and we'll talk it through.\u003c\/p\u003e","brand":"Aqua Master Tools","offers":[{"title":"Default Title","offer_id":59224852496758,"sku":null,"price":69.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9301\/4772\/files\/aquamasterp50pr2phmeter_67abc37d-7a0e-41e0-821a-d73386edbc9f.jpg?v=1793874112","url":"https:\/\/www.growell.co.uk\/products\/aqua-master-tools-p110-pro2-combo-pen-ph-ec-temperature","provider":"GroWell","version":"1.0","type":"link"}