{"product_id":"aqua-master-tools-c800-pro-controller","title":"Aqua Master Tools C800 Pro Controller – pH \u0026 EC Dosing","description":"\u003ch2\u003eSet your pH and EC once and let the controller hold them there\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAqua Master Tools C800 Pro\u003c\/strong\u003e is an automatic \u003cstrong\u003epH and EC dosing controller\u003c\/strong\u003e for hydroponic reservoirs and feed tanks. Its electrodes stay in the solution full time, reading \u003cstrong\u003epH, EC, PPM\/TDS and temperature\u003c\/strong\u003e, and when a value drifts away from its set point the controller runs its dosing pumps in short, timed pulses until the tank is back on target. A touchscreen shows live readings and alarms at the unit, and the \u003cstrong\u003eAqua Master Tools app\u003c\/strong\u003e lets you change set points, store feeding schedules, receive alarm notifications and look back over up to \u003cstrong\u003e12 months\u003c\/strong\u003e of logged data from your phone.\u003c\/p\u003e\u003cp\u003eThe system is modular. The left output is dedicated to one \u003cstrong\u003epH pump\u003c\/strong\u003e, set in the menu to dose either pH down or pH up; the right output runs \u003cstrong\u003eup to five nutrient pumps\u003c\/strong\u003e through Aqua Master's C10, C20 and C30 peristaltic pump units, which are sold separately. Run it for pH only, nutrients only or both, and add pumps as your feed programme grows.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous monitoring\u003c\/strong\u003e of pH, EC, PPM\/TDS and temperature, with automatic temperature compensation from \u003cstrong\u003e0 to 50°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic dosing\u003c\/strong\u003e – one pH channel plus up to \u003cstrong\u003e5 nutrient pumps\u003c\/strong\u003e on a single controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulse dosing you can tune\u003c\/strong\u003e – pump on-time from \u003cstrong\u003e1 to 900 seconds\u003c\/strong\u003e and a pause of \u003cstrong\u003e0 to 60 minutes\u003c\/strong\u003e between doses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarms that protect the crop\u003c\/strong\u003e – high and low pH, EC and temperature alarms, with dosing stopped while an alarm is active\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp control and history\u003c\/strong\u003e – remote set points, schedules and alerts, with up to a year of readings stored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate readings\u003c\/strong\u003e – pH \u003cstrong\u003e±0.1\u003c\/strong\u003e, EC \u003cstrong\u003e±2%\u003c\/strong\u003e of full scale, at 0.01 resolution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003epH Drift and Changing EC Between Checks\u003c\/h3\u003e\u003cp\u003eA reservoir does not stay where you mixed it. As plants drink, the pH creeps up or down and the EC rises or falls depending on whether they take up more water or more nutrients, and a once-a-day check with a pen can miss hours outside the safe range. That drift is a common cause of \u003cstrong\u003enutrient lockout\u003c\/strong\u003e, deficiency symptoms and \u003cstrong\u003epoor nutrient uptake\u003c\/strong\u003e, and it is worst in warm rooms where uptake is fastest. A controller corrects small changes as they happen, keeping the root zone stable without constant manual adjustment.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrate first:\u003c\/strong\u003e run a 1-, 2- or 3-point pH calibration (\u003cstrong\u003epH 4.0, 7.0 and 10.0\u003c\/strong\u003e) and a 1-point EC calibration at \u003cstrong\u003e1.4, 3.0 or 12.88\u003c\/strong\u003e before the electrodes go in the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect the pumps:\u003c\/strong\u003e a C10 pump on the left UTP port handles pH; a C10, C20 or C30 unit on the right port handles nutrients, and a second unit connects as an extension for four or five nutrient lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet targets:\u003c\/strong\u003e enter your pH and EC set points, choose pH up or pH down for the pH channel, then set the dose time and the pause between doses so the tank mixes before the next reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep it accurate:\u003c\/strong\u003e the electrodes live in the solution, so clean them and recalibrate more often than a hand-held meter, and watch for algae on the probes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasures:\u003c\/strong\u003e pH, EC, PPM\/TDS and temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e pH 0.00–14.00; EC 0.00–20.00 mS\/cm; PPM 0–14,000 (700 scale); temperature 0–50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e pH 0.01 or 0.1; EC 0.01 or 0.1 mS\/cm; temperature 0.1°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e pH ±0.1; EC and PPM ±2% F.S.; temperature ±1.0°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e pH 1, 2 or 3 point at 4.0, 7.0 and 10.0; EC 1 point at 1.4, 3.0 or 12.88\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature compensation:\u003c\/strong\u003e automatic, 0–50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDosing:\u003c\/strong\u003e on-time 1–900 seconds; off-time 0–60 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e left UTP port for 1 pH pump (up or down); right UTP port for up to 5 nutrient pumps (C10, C20, C30 units, sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarms:\u003c\/strong\u003e high and low pH, EC and temperature; dosing stops in alarm state\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData:\u003c\/strong\u003e history graphs up to 1 year; app for Android 8.0+ and iOS 12+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproofing:\u003c\/strong\u003e controller IP63; electrodes IP67\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e AC 85–260V, 50\/60Hz, UK plug adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions and weight:\u003c\/strong\u003e 94 x 210 x 55 mm; 656 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied with:\u003c\/strong\u003e C800 Pro controller, pH electrode, EC\/temperature electrode and power adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 year on the controller, 6 months on the electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eDoes the C800 Pro include dosing pumps?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNo. This is the controller with its pH and EC\/temperature electrodes. Dosing is done by Aqua Master Tools C10 (one pump), C20 (two pumps) or C30 (three pumps) units, which plug into the controller by UTP cable; one controller runs up to five nutrient pumps plus one pH pump.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan it raise and lower pH?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eThe pH channel doses one direction at a time: in the menu you choose whether its pump adds pH down or pH up. Most hydro reservoirs drift upwards, so it is usually set to pH down.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan I use it for pH control only?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. Aqua Master Tools designed it to run pH only, nutrients only, or both, so you can start with a single pH pump and add nutrient pumps later.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow often does it need calibrating?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eBecause the electrodes sit in the reservoir permanently they drift faster than a pen that is used for spot checks. Clean the probes and recalibrate pH (4.0, 7.0, 10.0) and EC (1.4, 3.0 or 12.88) regularly, and whenever readings stop matching a hand-held meter.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/aqua-master-tools-ph-calibration-solution\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/aqua-master-tools-ph-calibration-solution.jpg?v=1787263877\u0026amp;width=160\" alt=\"Aqua Master Tools pH Calibration Solution\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eAqua Master Tools pH Calibration Solution\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003epH 4.01 and 7.00 buffers for calibration\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/aqua-master-tools-kci-storage-solution\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/kci-storage-solution-4853-en-G.jpg?v=1786377505\u0026amp;width=160\" alt=\"Aqua Master Tools KCl Storage Solution\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eAqua Master Tools KCl Storage Solution\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eKeeps the pH electrode hydrated off the tank\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/growth-technology-ph-down-30\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/growth-technology-ph-down-30.png?v=1787262241\u0026amp;width=160\" alt=\"Growth Technology pH Down 30%\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGrowth Technology pH Down 30%\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003epH down for the dosing pump\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Aqua Master Tools","offers":[{"title":"Default Title","offer_id":53931041095946,"sku":"NUT-AQMA-001-01","price":596.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/aqua-master-tools-c800-pro-controller-default-title-1.jpg?v=1792294866","url":"https:\/\/hydrocropshop.co.uk\/products\/aqua-master-tools-c800-pro-controller","provider":"Hydro Crop Shop","version":"1.0","type":"link"}