1138_0 - Differential Gas Pressure Sensor 50 kPa


This differential gas pressure sensor plugs into an analog input and measures pressure from 0 kPa to 50 kPa.

Product Description


The 1138 Differential Pressure Sensor is a dual ported gas pressure sensor that measures the pressure difference between the two ports. It can measure pressure from 0 kPa to 50 kPa.


Product Specifications


Sensor Properties

Sensor Type Gas Pressure (Differential)
Sensor Output Type Ratiometric
Pressure Differential Min 0 Pa
Pressure Differential Max 50 kPa
Case Pressure Max 200 kPa
Pressure Resolution 56 Pa
Measurement Error Max ± 2.5 %
Warm-up Time 20 ms
Response Time Max 1 ms


Electrical Properties

Supply Voltage Min 4.8 V DC
Supply Voltage Max 5.3 V DC
Current Consumption Max 10 mA
Output Impedance 1 kΩ
Output Voltage Min 250 mV DC
Output Voltage Max 4.8 V DC


Physical Properties

Operating Temperature Min -40 °C
Operating Temperature Max 125 °C
Recommended Tubing Size 3 mm




warning This sensor is designed to measure the pressure of clean, non-condensing air. Contact with moist air (i.e, human breath), dusty air, or other gases can damage the sensor.

Take caution when connecting the pressure ports- this sensor only measures a positive pressure differential, and you could damage the sensor if you connect it in reverse. See the User Guide for connection details.





Comes Packaged with



Related Products

If you need a sensor with a wider measurement range, this sensor is a good choice:

If you need a sensor that can measure a negative or positive pressure difference, have a look at these differential sensors:

If you want to measure the absolute pressure of an environment, or want to use a sensor as a barometer or altimeter, these sensors will do the trick: