Plants require CO2 during the day when the lights are on and O2 at night when the lights are off for respiration. Th MC122 pH controller enables you to automate your dosing of CO2 and ensures that the plants of your aquarium are always healthy. The meters are supplied with a plug socket to connect the solenoid valve.
Range: 0.0 to 14.0 pH

Resolution: 0.1 pH

Accuracy (@ 25degrees Celsius): +/- 0.2 pH

Set point range: 5.5 to 9.5 pH

Alarm: active when reading is higher than set point

Dosing contact: 1 power plug for CO2 dosing

pH Electrode: MA911B/2 (included)

Environment: 0 to 50degrees C; max RH 95%

Power supply: 12 VDC (included)
Professional pH/CO2 controller is specially designed for use in aquariums.


· Manual 2 points calibration


· Visual LED alarm


· Works with 12 VDC adapter


·Power plug for CO2 dosing


·Double junction pH electrode (BNC connector)