Dissolved oxygen monitoring is the most critical water quality parameter in aquaculture, wastewater treatment and surface water monitoring. Our Dissolved Oxygen sensors use an optical principle that eliminates the need for frequent calibration, reagents and electrolytes. Low maintenance costs and long sensor life. The sensor has a built-in temperature sensor. With an RS485 digital signal output, it can be used with our online controllers. The sensor can be easily integrated into wireless sensor networks and automated controls.

Product Features

✅Digital output, support RS485 / MODBUS.

✅No membrane，No electrolyte, No chemical  interference, No frequent calibration required. No oxygen consumption, No flow dependent.

✅Specially designed for aquaculture application.

Technical parameter

Name	Dissolved oxygen sensor
Principle	Fluorescence
Range	0-20mg/ L or 0-200 % saturation
Measurement accuracy	±3%
Response time	60s
Maximum depth	30m
Temperature range	0 ~ 50℃(non-freezing)
Temperature accuracy	±0.5℃
Sensor interfaces	RS-485, MODBUS protocol
Power Requirements	DC 9~24V，current <50mA
Construction	M22*1.5(optionally convertible to NPT3/4 thread), submersible installation
Sensor size	Φ22mm*152.7mm
Probe cable length	5m (default), customizable
Calibration	One-point or two-points calibration
Fluorescent cap life	1 Year ( at normal use)
Body materials	316L / Ti

Product Advantages