Bluelab® pH Controller

This controller fine-tunes the reservoir pH levels for you. It offers automatic measuring and adjusting to pre-set pH levels with optional alarms. Provides consistent control of pH in growing systems with intuitive "on time" and "off time" which allows the solution to dose and mix before the controller measures and doses again. Get some reassurance with safety lockouts to prevent over delivery of pH. It has the capacity to control pH levels in systems with reservoirs up to 200gal (760L). The plant-safe green backlit LCD has adjustable brightness and an easy to read display. Simple push button pH calibration with on screen instructions. Controller features flashing high and low alarms with control lockouts, a water resistant, wall mount design with separate temperature probe (for pH ATC), and a replaceable double junction pH probe and peristaltic pump.