Introduction This product is the latest digital dissolved oxygen electrode independently researched, developed, and produced by BOQU Instrument. The electrode is light in weight, easy to install, and has high measurement accuracy, responsiveness, and can work stably for a long time. Built-in temperature probe, instant temperature compensation. Strong anti-interference ability, the longest output cable can reach 500 meters. It can be set and calibrated remotely, and the operation is simple. Can be widely used in urban sewage treatment, industrial sewage treatment, aquaculture and environmental monitoring and other fields. Features 1) The on-line oxygen sensing electrode, can work stably for a long time. 2) Built in temperature sensor, real-time temperature compensation. 3) RS485 signal output, strong anti-interference ability, output distance up to 500m. 4) Using the standard Modbus RTU (485) communication protocol 5) The operation is simple, the electrode parameters can be achieved by remote settings, remote calibration . 6) 12V-24V DC power supply.         Technical Parameters

Model	BH-485-DO Digital Dissolved Oxygen Sensor
Parameter measurement	Dissolved oxygen,temperature
Measure range	Dissolved oxygen:(0~20.0)mg/L Temperature:(0~50.0)℃
Basic error	Dissolved oxygen:±0.30mg/L Temperature:±0.5℃
Response time	Less than 60S
Resolution	Dissolved oxygen:0.01ppm Temperature:0.1℃
Power supply	24VDC
Power dissipation	1W
communication mode	RS485(Modbus RTU)
Cable length	Can be ODM depend on user’s requirements
Installation	Sinking type, pipeline, circulation type etc.
Overall size	230mm×30mm
Housing material	ABS