{"product_id":"aqua-master-tools-h600-pro-handheld-meter-ph-ec-ppm-tds-temperature","title":"Aqua Master Tools H600 Pro Handheld Meter: pH, EC, PPM, TDS \u0026 Temperature","description":"\u003ch2\u003eH600 Pro Handheld pH, EC and PPM Meter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAqua Master Tools H600 Pro\u003c\/strong\u003e is a handheld meter that reads pH, EC, PPM, TDS and temperature through two separate probes on cables. It's built for growers who test often, test several tanks or carry a meter between grow room, greenhouse and shed.\u003c\/p\u003e\n\u003cp\u003eThe separate probes are the main reason to choose it over a pen. pH electrodes wear out faster than EC electrodes. On a combo pen, one worn sensor means replacing both. On the \u003cstrong\u003eH600 Pro\u003c\/strong\u003e, each probe is replaced on its own, so running costs stay lower over the years.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePPM is worked out from EC\u003c\/strong\u003e, and meters don't all use the same conversion. The H600 Pro uses the \u003cstrong\u003e700 scale\u003c\/strong\u003e. Some feed charts and meters use the 500 scale, so the same solution can show two different PPM numbers. Check which scale your chart uses, or work in EC, which is the same on every meter.\u003c\/p\u003e\n\u003cp\u003eThe meter reads \u003cstrong\u003epH 0.1 to 14.0 to ±0.1\u003c\/strong\u003e and \u003cstrong\u003eEC 0.0 to 19.9 mS\/cm\u003c\/strong\u003e, with \u003cstrong\u003eautomatic temperature compensation\u003c\/strong\u003e from 0 to 50°C. PPM readings top out at 1,999, around EC 2.8 on the 700 scale. Above that, switch to EC.\u003c\/p\u003e\n\u003cp\u003eThe probes are IP67 waterproof, but the meter body is IP62, which means splash resistant, not submersible. Keep the meter out of the tank and let the probes do the dipping.\u003c\/p\u003e\n\u003cp\u003eIt also accepts Aqua Master Tools \u003cstrong\u003esubstrate electrodes\u003c\/strong\u003e. Fit them and you can test directly in coco, soil or compost as well as in liquid. If substrate testing is your main job, the H600 Pro Handheld Substrate Meter comes with those probes already fitted.\u003c\/p\u003e\n\u003cp\u003eIf you only need quick pH and EC checks of one tank, the \u003cstrong\u003eP110 Pro2 Combo Pen\u003c\/strong\u003e does the job for less.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive readings in one meter\u003c\/strong\u003e: pH, EC, PPM, TDS and temperature, switched with one button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparate, replaceable probes\u003c\/strong\u003e: pH on a BNC connector, EC on a pin connector, each replaced independently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-point automatic pH calibration\u003c\/strong\u003e at 4.0 and 7.0, and \u003cstrong\u003eone-point automatic EC calibration\u003c\/strong\u003e at 1,413 µS\/cm (EC 1.41)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration reminder\u003c\/strong\u003e 30 days after your last calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate electrode compatible\u003c\/strong\u003e for testing directly in growing media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge screen\u003c\/strong\u003e with battery indicator and a HOLD button to freeze the reading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarry case included\u003c\/strong\u003e to keep meter and probes together\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns on one 9V battery\u003c\/strong\u003e (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-year warranty\u003c\/strong\u003e on the meter and six months on the electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eYou get\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x H600 Pro handheld meter\u003c\/li\u003e\n\u003cli\u003e1 x pH electrode (BNC connector)\u003c\/li\u003e\n\u003cli\u003e1 x EC electrode (small pin connector)\u003c\/li\u003e\n\u003cli\u003e1 x carry case\u003c\/li\u003e\n\u003cli\u003e1 x 9V battery\u003c\/li\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLooking after the probes\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eBefore first use, soak the pH probe in tap water for at least 12 hours.\u003c\/li\u003e\n\u003cli\u003eStore the pH probe with a few drops of KCl storage solution in its protective cover. A pH probe left dry loses accuracy fast and may not recover.\u003c\/li\u003e\n\u003cli\u003eRinse both probes after each reading. Calibrate monthly or when the reminder appears.\u003c\/li\u003e\n\u003cli\u003eWhen a probe responds slowly or won't calibrate after cleaning, replace that probe only.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eOrder online for delivery in plain, unbranded packaging, or use free Click \u0026amp; Collect from your local GroWell shop. Free UK delivery on orders over £99, and Pay in 3 if you'd rather spread the cost.\u003c\/p\u003e","brand":"Aqua Master Tools","offers":[{"title":"Default Title","offer_id":59224853184886,"sku":null,"price":174.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9301\/4772\/files\/AquaMasterToolsH600ProHandheldMeter-pH_EC_PPM_TDS_Temperature.jpg?v=1793874299","url":"https:\/\/www.growell.co.uk\/products\/aqua-master-tools-h600-pro-handheld-meter-ph-ec-ppm-tds-temperature","provider":"GroWell","version":"1.0","type":"link"}