Pressure Sensor WPAH31

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WPAH31 ceramic pressure sensor is a ceramic piezoresistive pressure sensor with temperature compensation function, which is refined with a refined ceramic base through a thick film process.


* Ceramic sensitive diaphragm with high overload capacity
* Zero point and temperature drift laser trimming
* Excellent corrosion and wear resistance
* Shock and vibration resistance
* High precision and high stability
* Wide operating temperature range
* Small size, easy to package
* Environmental friendly

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Specification Product Size

Technical Data Sheet

Model No. WPAH31
Dimensions Φ18mm*6.35mm
Range 2bar, 5bar, 10bar, 20bar, 40bar, 50bar, 100bar optional
Operating Voltage 2-20V
Sensitivity 1.5—4mv/V, typical value 2.5±1.0mv/V
Input and output impedance 10KΩ±30%
Temperature range -40℃-125℃
Zero output 0—±0.4 mv/V, typical value 0±0.25mv/V
Linearity, Hysteresis, Repeatability Typical ±0.3 %FS
Temperature drift ±0.02%FS/℃, ±0.03%FS/℃, ±0.05%FS/℃ optional
Safe overload 2 times the rated range (when the sensitivity is typical)
Stability Better than ±0.5%FS / year (under reasonable use)


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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

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Winsen is a factory with over 30,000 square meters area and 500+ production machines which is focusing on sensors development&manufacturing. It has strong R&D strength with more than 100 R&D personnel.

How long is the delivery time?

1-7 days after received payment

What is your warranty term?

The warranty period is one year from the date of shipment. If the appearance of the product is not damaged, it can be returned after confirmation. For damage not caused by Winsen, the customer shall bear all maintenance costs.

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