Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 15 years.

Keywords: Nanjing WotianPressure Sensor FactoryMonocrystalline Silicon Differential Pressure SensorLevel TransmitterPressure TransmitterPressure Sensor

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  • PC12(WTP02) Pressure Sensor
  • PC12(WTP02) Pressure Sensor
  • PC12(WTP02) Pressure Sensor
  • PC12(WTP02) Pressure Sensor

PC12(WTP02) Pressure Sensor

l  Piezoresistive silicon chip employed                                                                                                                                                                                                              

l  Perfect long term stability          

l  MEMS Technology                                 

l  CE certificate        


Product Parameters

Pressure range

Pressure range

-100kPa, 35kPa, 70kPa, 100kPa, 250kPa,   400kPa, 600kPa,   1MPa, 1.6MPa, 2.5MPa, 4MPa, 6MPa, 10MPa

Pressure reference

Gauge pressure | Absolute pressure | Sealed gauge pressure


300%F.S.(70kPa) | 200%F.S.(25MPa)   | 150%F.S.(25MPa)

Output signal

Zero output


Span output

1.5mA excitation: ≥40mV (≤35kPa); ≥60mV   (Other ranges)

10V excitation: ≥60mV (≤35kPa); 80-120mV   (Other ranges)


Accuracy (linearity,   repeatability and hysteresis)

±0.25%F.S. (Typical)


1.5mA | 10VDC

Compensated temp.

0-60 (≤35kPa) | -10-70 (Other ranges)

Operating temp.


Medium temp.


Storage temp.


Zero temp. coefficient

0.02%F.S. /(≥100kPa)   | 0.04%F.S. /(<100kPa)

Span temp. coefficient

0.02%F.S. /(≥100kPa)   | 0.04%F.S. /(<100kPa)

Insulation resistance


Input impedance


Long term stability



20g   (20-5000HZ)


100g (11ms)

Response time

≤1ms (up   to 90%F.S.)


10*106   (cycles)

Oil filling



NBR, Viton

Housing material                                

Stainless steel 304

Diaphragm   material                                    

Stainless steel 316L

Medium compatibility

All the liquids and gases compatible with   the diaphragm

Wire connection

4 wire (typical) | 5 wire (available)    39×φ0.015, Silicon shielded, 200   bearing

Pin connection

Kovar pin (0.6um Gold platted)



Company advantage

Mass production

We have one production center in Nanjing and one production center in Anshan with 20,000㎡plant and 170 units of production equipments. The main annual capacity of sensors is about 2,000,000 pieces.

Imported equipments

We imported 20 sets of pressure controller and 150 units of testing ovens to our production line.

Informatization management

We have the information management system of CRM, PLM, ERP, MES and DINGDING etc.

Comprehensive testing

We have our own lab and testing equipment such as lightning stroke, surging, static electricity, vibration, high-low temperature impact test and helium mass-spectrum leak detection.