Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

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  • Armored Explosion-proof Temperature Transmitter PCT220

Armored Explosion-proof Temperature Transmitter PCT220


■ Platinum temperature sensor

■ Vibration resistance

■ Good reliability

■ High accuracy

China factory armored explosion proof temperature transmitter, PT100 -50℃-250℃ Platinum temperature sensor

PCT220 armored explosion-proof temperature transmitter measures temperature range from -50℃ to 250℃ with supply 24VDC and output 4-20mA by PT100 sensing element. Insertion length from 30mm to 150mm, diameter 8mm. Connection types are thread, flange or tri-clamp. China factory OEM available.

Product Parameters

Temperature range

Temperature range

-50to 250


Accuracy (linearity,   repeatability and hysteresis)

±0.5%F.S. (Typical)





Heat   response time


Sensing   element


Insertion   diameter







Exia   IIC T6

Housing   material

Stainless   steel 304

Production process

Armored Explosion-proof Temperature Transmitter PCT220

                                                   Testing Equipment

Head mount temperature sensor PCT380Head mount temperature sensor PCT380

Head mount temperature sensor PCT380Head mount temperature sensor PCT380


Armored Explosion-proof Temperature Transmitter PCT220

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.