Model: WPAS12
Characteristics: Independent intellectual property rights sensor design

WPAS12 Manual download
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The WPAS12 plastic pressure sensor is an integrated analogue output pressure sensor with compact size, high accuracy, high sensitivity and high reliability. WPAS12 converts the pressure signal into an analogue output signal and the voltage output is proportional to the supply voltage. Linearly calibrated and temperature compensated, the analogue output ranges from 0.18V to 4.65V over the pressure range of 15KPa to 115KPa absolute. This pressure sensor is available in a RoHS compliant SOP8-7070 package for easy installation. It is primarily used to measure engine intake manifold pressure, but can also be used in other automotive applications, industrial and consumer applications.


  • Automotive Electronics: Manifold Air Pressure Measurement
  • Industrial Control
  • Healthcare Applications
  • Consumer applications
  • Weather Stations
  • Altimeter


  • Independent intellectual property rights sensor design
  • Pressure range 15~115Kpa (customisable)
  • Proportional analogue output
  • High precision pressure monitoring
  • Wide temperature range (-40℃~125℃)
  • Eco-grade SMD package for easy installation


Parameters Symbolic Min. value Typical value Max. value Unit
Working Temperature Ta -40 - 125
Supply Voltage Vdd 4.5 5 5.5 V
Detection range (customizable) Pamb 15 - 115 kPa
Output Voltage Range (customizable) Vout-r 0.1 - 4.85 V
Working Current Is - 1.2 1.8 Ma
Accuracy(0~85℃) ACUp - - ±1 %FS
Accuracy(125℃) ACUp - - ±2 %FS
Accuracy(-40℃) ACUp - - ±3 %FS
Long Term Stability STBp - - ±0.05 %FS

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.