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I2C Stainless Steel Diffused Silicon Water Pressure Sensor

I2C Stainless Steel Diffused Silicon Water Pressure Sensor

Brand Name:WNK
Model Number:WNK81MA
Minimum Order Quantity:1pcs
Delivery Time:5-8 working days
Payment Terms:T/T, Western Union, L/C,Paypal
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Verified Supplier
Location: Hefei Anhui China
Address: 5f, Bldg 2a, Mingzhu Industrial Park 106 Chuangxin Ave, High-Tech Zone, Hefei, Anhui, China
Supplier`s last login times: within 48 hours
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Product Details Company Profile
Product Details

4-20ma Stainless Steel Diffused Silicon Water Pressure Sensor

Product Description
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.

We also have WNK80MA ceramic capacitive pressure sensor. WNK80MA and WNK81MA both have outputs of 4~20mA, SPI, I2C, 0.2-2.9v, 0.5-4.5v, 0-5v and other outputs. With small size, stainless steel housing and high accuracy, WNK80MA and WNK81MA are widely applied to air compressor, HVAC, water and gas management system, smart city, and etc.


• Ceramic capacitive and diffused silicon sensors are available;
• Accuracy choices ±0.5%FS, ±1%FS, ±2%FS;
• Stainless steel 304,SS316 and brass housing;
• 0.5…4.5V, 4…20mA, 1...5V and 0...10V analog output or I2C and SPI digital output;
• Fast respond, no hysteresis ;
• Various process thread or other customization port acceptable;

• Electrical connectors including small DIN43650, M12, Parkard and others

• OEM, ODM and 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 voltage5V 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.

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.

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Company Information


Q: Are you manufacturer or trading company?

A: We are professional pressure/level/temperature measurement manufacturer with more than 13 years of experience. Our factory address is: 4/F,Bldg #6, No.168, Xiangzhang Road, High-tech District, 230088, Hefei, Anhui province, China.

Q: What’s your quality control system?

A: We are an ISO 9001-2015 certified manufacturer, we have strict quality control system. Besides clibartiaon, each set product we also do temperature compensation and aging test before shipment, so the quality is guaranteed.

Q: What is the warranty of your products?

A: 12 month from shipment date, for non-man-made damages.

Q: Can we use our logo on the products? Do you provide customized products?

Yes.we can use your logo, we can provide customized products per requirement. OEM/ODM is welcome

Q: What is yor MOQ?

A: We have no MOQ limits, small quantity order is acceptable.

Q: What's the transport?

A: Express such as DHL, Fedex, TNT, UPS for freight prepaid, also can use your own couier account to do the freight collect. For more goods we can arrange by air or by Sea.

China I2C Stainless Steel Diffused Silicon Water Pressure Sensor supplier

I2C Stainless Steel Diffused Silicon Water Pressure Sensor

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