http://www.htdengineering.com/san-pham/gentek-air-difference-pressure-transmitter.html
Gentek Air is a device that basically detects the difference between the two pressures and reads the temperature and humidity information via a digitally communicated sensor.
Relays on; Depending on the difference in temperature, humidity and pressure, it can be set to the desired value.
Analog output, 0-10V or 4-20mA can be selected, depending on temperature, humidity or pressure difference.
With Modbus, temperature, humidity and pressure difference can be read from the device, relays can be opened,
analog outputs can be set.

Measuring Range *: -25mbar ~ + 25mbar

-100mbar ~ + 100mbar
-250mbar ~ + 250mbar
-600mbar ~ + 600mbar
Selectable project-based custom values.
Accuracy: ± 0.25% (- 20 ° C ~ 85 ° C)
* Can be selected as Vacuum, Pressure and Difference.
Temperature Measurement Range: - 40 ° C ~ 85 ° C
Temperature Accuracy: ± 0.4
Humidity Measuring Range: 0% rH ~ 100% rH
Temperature Accuracy: ± 3% rH
Outputs: 4-20mA / 0-10V / 2 X 5Amp Relay Output
Supply: 7/36 VDC
2 Line-illuminated LCD
Display with and without Display Options
http://www.htdengineering.com/san-pham/gentek-air-difference-pressure-transmitter.html
*Liên hệ: XXX *Email: sales@htdengineering.com