- Shenzhen Bestone Industrial Co. Ltd.
Guangdong
- Hunan Firstrate Sensor Co., Ltd.
- Pressure Transmitter, Differential Pressure Transmitters, Temperature Transmitter, Wind Speed Sensors, Wind Direction Sensors, Fuel Level Sensor, Capacitive Liquid Level Transmitter
Hunan
- Sichuan Weinasa Technology Co., Ltd.
- Automatic Weather Stations, Sensors, Temperature Humidity Controlling, Ultrasonic Weather Stations, Measuring Instruments
Sichuan
- Zhejiang Lefoo Sensing Technology Co., Ltd.
- Pressure Transmitter
Zhejiang