Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 17 years.

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

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  • PCM710 Intelligent Pressure Switch
  • PCM710 Intelligent Pressure Switch
  • PCM710 Intelligent Pressure Switch
  • PCM710 Intelligent Pressure Switch
  • PCM710 Intelligent Pressure Switch

PCM710 Intelligent Pressure Switch


■ High precision

■ Adjustable response time

■ NPN, PNP compatible, free switching

■ Button operation, shortcut button for one-click zero calibration, fast unit switching

■ OLED shows the current pressure

■ LED for node action, easy to observe


■ Hydropower

■ Chemical industry

■ City water supply

■ Scientific research

■ Accurate measurement and control of pressure of fluids

PCM710 piezoresistive silicon NPN PNP digital pressure switch, 4-20mA 0.2% accuracy electronic pressure switch

PCM710 piezoresistive silicon intelligent pressure switch with LED display is NPN PNP compatible and free switching. Accuracy is 0.2% or 0.5%. Output 4-20mA used in hydropower, tap water, petroleum, chemical, mechanical, hydraulic industries for measurement, display and control of pressure of fluids

Product Parameters

Performance parameters

Pressure   range


Overload   capability



±0.2%FS,   ±0.5%FS

Power   supply

1230V,   24V recommended

Display   mode

OLED   display of 4 digits

Output   mode

2-way switch   quantity, NPN and PNP compatible + 420mA

Load   capacity

≤24V 1.2A

Power   consumption


Operating   temp.


Storage   temp.


Response   time




Protection   grade


Structural performance parameters

Housing   material


Medium   compatibility

Liquid   contacting diaphragm 316L, pressure port 304

Production process

PCM710 Intelligent Pressure Switch


PCM710 Intelligent Pressure Switch

Company profile

PCM580 Digital Pressure Gauge (Φ80mm)

Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor mkanufacturing enterprise in Jiangning District. The company was rated as Nanjing Engineering Technology Research Center and Nanjing. Municipal Engineering Research Center, Nanjing Enterprise Technology Center, Nanjing Postdoctoral Innovation Demonstration Base; is the unit that formulated the national standards for "Silicon Piezoresistive Pressure Sensitive Chips" and "Silicone Pressure Sensors". It is the leading domestic manufacturer of pressure sensors, with core technology of diffused silicon pressure sensor pressure transmitter, level sensor and temperature sensor and existing staff 305. The annual production of pressure sensors is more than 2 million. The products have been exported to more than 70 countries and regions. Nanjing Wotian was awarded the honorary title of "Sensor Application Program Demonstration Enterprise" by the Ministry of Industry and Information Technology in 2019. "Creating value for customers" is the goal that enterprises always pursue. As leading manufacturer in the domestic pressure sensor industry, the company will revitalize China's pressure sensor business as its own responsibility, work diligently, step by step, strive to make pressure sensors better, and provide customers with cost-effective sensors.  Nanjing Wotian Technology Co., Ltd. has passed ISO9001-2015 quality management system certification and TS16949 certification for the automotive industry.

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.