BLUELAB PH CONTROLLER Bluelab pH Controller Hands-free monitoring and dosing of solution pH levels. Simple. We know pH levels can be the difference between a great crop and well, a disaster. Measuring and adjusting nutrient solution levels constantly can be time-consuming. And let’s face it; you have better things to do. Features Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L Plant-safe green back lit LCD with adjustable brightness Large, easy to read displays Easy to navigate menu to program and adjust settings Simple push button pH calibration with on screen guide Flashing high / low alarm with control lockouts Dosing lockouts to protect from over-dosing Auto resume dosing on restart after power loss Water resistant, wall mount design 13 foot (4 meter) acid/alkali resistant dosing tube supplied Use with undiluted Bluelab pH Up or Down International power supply Replaceable double junction pH probe Separate Bluelab Temperature Probe (for pH ATC) Replaceable peristaltic pump and tubes