Smart pH Controller Model SMS122 SMS 122 PH CONTROLLER pH controller, range: 0.0 to 14.0, with +/-0.2 pH accuracy and 2 point manual calibration. Set point range 5.5 to 9.5 pH, and LED visual alarm active when reading is higher than set point. Power plug socket for CO2 dosing. Supplied with 12 volt DC power adapter, MA911B/2 double junction pH electrode, 20 ml. pH 7.01 sachet buffer solution and screwdriver for calibration. See also MA957 regulator. Drop ship. Manufacturer's Product Information 2007 MSRP Each $ 141.95
