co2 sensors,co,co2.o3 gas detector,temperature humidity controller,co2 and voc monitor,thermostat,BACnet thermost,voc alarm, BACnet co2 transmitter,multifunctional IAQ monitor...

ultrasonic sensor,ultrasonic ranging module,infrared sensor module,PIR motion detector module,temperature sensor,humidity sensor,gas sensor,pressure sensor and other types of transmitter sensor...

8# Building, #9 Courtyard Dijin Rd. Haidian district

Tongdy Control Technology has designed and manufactured high quality IAQ products and HVAC controllers for 15years. Our IAQ products includes transmitters/ /controllers of carbon dioxide and carbon mo...

Xiamen Kehao Automation Co., Ltd as headquarter is founded in 2003, located in Xiamen, China. Through several years development, we have become a professional manufacturer with strong reseaching&a...

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