Milwaukee MC122 pH Controller.
Professional pH controller especially designed for use with aquariums.
MC122 Specifications: - Range: 0.0 - 14.0 pH - Resolution: 0.1 pH - Accuracy: ± 0.2 pH - Calibration: Manual 2 points - Set point range: 5.5 - 9.5 pH - Alarm: Active when reading is higher or lower than set point - Dosing contact: 1 power plug for CO2 dosing - Power supply: 12 VDC adapter - Electrode: MA911B/2 (Included)