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Hefei WNK Smart Technology Co.,Ltd
Home ProductsAir Pressure Sensor

Small Dimensions Air Pressure Sensor 2.5xFS Overload IP67 Ingress Protection

China Hefei WNK Smart Technology Co.,Ltd certification
China Hefei WNK Smart Technology Co.,Ltd certification
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Small Dimensions Air Pressure Sensor 2.5xFS Overload IP67 Ingress Protection

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Large Image :  Small Dimensions Air Pressure Sensor 2.5xFS Overload IP67 Ingress Protection

Product Details:
Place of Origin: CN
Brand Name: WNK
Certification: CE, ISO9001:2015
Model Number: WNK81MA
Payment & Shipping Terms:
Minimum Order Quantity: 5pcs
Price: 20
Packaging Details: Sea-Worthy Packing or Air-Worthy Packing
Delivery Time: 5-8 working days
Payment Terms: T/T, Western Union, L/C
Supply Ability: 5000pcs per month
Detailed Product Description
Digital Output: I2C, SPI Analog Output: 4~20mA, 0.2-2.9V, 0.5-4.5V ,0-5V
Accuracy: ±0.5%FS, ±1%FS, ±2%FS Pressure Range: 0-600bar
Operation Temperature: -40~125℃ OEM: OEM, ODM Welcome
Overload: 2.5xFS Proof Pressure: 3xFS
Housing: SS304, SS316, Brass Ingress Protection: IP67
High Light:

air pressure transmitter


mini pressure sensor

Air Compressor Water Pressure Sensor With SS304 Housing M12 Connector
WNK81MA pressure transmitter is a high stable pressure transmitter by using specific ASIC signal conditioning chip and high performance SS316L diaphragm diffused silicon pressure sensor. The internal specific ASIC integrated circuit transforms milivolt signal to standard voltage, current or frequancy signal. It can easily connect with PC interface card, controlling instruments, smart gauges or PLC. It is compact designed, light and stainless steel sealing structure, which enable it capability of working in corrosive environment.
WNK also provides high cost-effective ceramic capacitive pressure sensor. It can be applied to domestic drinking water system, air-conditioning, machinery and refrigeration plant engineering, hydraulic and pneumatic systems, process industries, environmental technology, IIOT and IOT system.

  • Optional packard, M12, Small Hirschman connectors;
  • Small dimensions, housing is customizable;
  • High Accuracy 0.5%FS, 1%FS and 2%FS
  • Pressure range 0~60MPa (ceramic capacitive sensor range 0~15MPa, diffused silicon sensor 0~60MPa);
  • Digital outputs of SPI and I2C; analog outputs 4~20mA/0.5~4.5V/1~5V/ 0~5V, pls contact us for other outputs;
  • Wide operation temperature range -40~125ºC;
  • High performance ceramic capacitive or diffused silicon pressure sensor;
  • OEM, ODM, customization;

• Pressure measurement of gas, vapor or liquid in various areas;
• Liquid level, volume or mass measurement;
• Integrated in a variety of user-defined solutions;
• Smart water and gas management system, smart fire controlling, automotive electronics controlling, air compressor, HVAC, pump, valve and etc;

Pressure typeGauge pressure, sealing pressure, absolute pressure
Measuring range-0.1~60MPa
Analog0.5…4.5V, 4…20mA, 1...5V, 0...10V
AnalogI2C, SPI
0.2%Linearity, hysteresis, repetitiveness:<0.2% sensor full range
0.5%Linearity, hysteresis, repetitiveness:<0.5% sensor full range
2.5X pressure sensor full scale
Housing Info.
Housing MaterialSS 304, Cu, Al
Wetting MaterialSS316L
Ingress ProtectionIP67

Power Supply

 Supply voltage 5V 24VDCregulated power supply,
 Supply voltage effect

 5V supply voltage effect: min.3V/max.5.5V
●For 0.5…4.5V output sensor, voltage has no effect for linearity and temperature compensation, voltage is proportional to LRV and FRV.
●For I2C and SPI digital output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature.
 24V supply power effect: min.9V/max30V
●For 4…20mA current output sensor, voltage has no effect for linearity, LRV, URV and compensation temperature.

Ordering info:

ModelProduct description
WNK81MAPressure Transmitter
CODEPressure Type
AAbsolute Pressure
GGauge pressure
SSealing pressure
CODESensor range
A0.1barE10 bar
B0.5 barF50 bar
C1 barG100 bar
D5barH600 bar
Other ranges are in developing
10.5…4.5V DC
50...10V DC
61...5V DC
CODEElectrical connector
C3Cable outlet(pls put down cable length, such as 01 for 1 meters)
C4Mini DIN43650
CODEProcess connector
Pls contact WNK for other process connectors

Typical ordering code:WNK81MA GC2 C1 P1
WNK81MA GC2 C310 P1________C3 direct cable outlet length is 1 meter.

Competitive Advantages:
1. Founded in 2004, over 13 year professional research, developing and production experience;
2. Experienced and professional R&D team to provide customization services;
3. Producing transmitter core elements- PCB, supplying PCB for transmitter producers;
4. Highest accuracy up to 0.05%FS;
5. Various outputs I2C, SPI, 4~20mA, Hart, Modbus, Profibus-Pa, 0.5-4.5V, 0.2-2.9V and other analog outputs;
6. Our products have been exported to Germany, Norway, Poland, Finland, Spain, UK, France, Russia, USA, Brazil, Mexico, Australia, Japan, Korea, Thailand, Indonesia, Uruguay and many other countries.

Contact Details
Hefei WNK Smart Technology Co.,Ltd

Contact Person: Leo Zhang

Tel: +8615056948430

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