Specifications

Sensors

Sensor	Measurement range	Accuracy
pH	pH 2.5 - 11	+-0.15 pH
EC	0.0 - 4.0 mS/cm	+-0.15 mS/cm
Water level	30 - 1800 mm	+-1.5 mm
Water temperature	0 - 65 °C	+-0.75 °C
Air temperature	0 - 65 °C	+-0.75 °C
Humidity	0 - 100 %RH	+-3 %RH

Pumps

Pump type	Flow rate	Dosing accuracy	Dosing range	Head
Peristaltic	100 ml/min	TBA	> 5 ml	3 m
Centrifugal	4 l/min	+-10 %	> 0.5 L	3 m

Environmental protection

Component	Rating
Control unit	Not protected against water ingress. Must not be mounted in direct sunlight. 0 - 50 °C, below 85 %RH.
Submersible sensors	pH, EC, water level and water temperature sensors are intended for continuous submersion in the measured solution.
Centrifugal pumps	Intended for continuous submersion in the pumped solution.
Peristaltic pumps	Not protected against water ingress. Must not be mounted in direct sunlight. 0 - 45 °C, below 85 %RH.

Power supply

12 V DC with positive center pin. Maximum current supply capacity must be 1 +- 0.05 A.