No nitric oxide sensor adopts imported sensing chip,
Used to detect in various environments
The concentration of nitric oxide has high precision and good stability
And other characteristics.
Range: 0 ~ 250PPM
Resolution: 1ppm
Power supply mode: DC12V / 24V
Wiring mode: voltage type: 3-wire, current type: 3-wire
RS-485 signal: 4 wires
Signal output: voltage type: 0 ~ 5V DC, current type:
4～20 mA 
RS-485 signal: support Modbus Protocol (baud rate)
9600 can be set, address 0-255
(settable)
Response time: < 20s, measurement stability time: 30s
Sensor type: electrochemical
Working mode: continuous operation
Temperature range: - 20 ℃ ~ 50 ℃
Humidity range: 15% ~ 95% (RH) without condensation
Overall dimension: 144MM × 190mm × 74mm 
Weight: about 1130g