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Contact Supplier1 independent mode: when detector used independently, there is only sound and light alarm
2 compatible mode:it can be connected with one of the following five mode
a. Wired network
b. Wireless network
c. Electromagnetic valve
d. Wireless network and exhaust fan
e . Wireless network and electromagnetic valve
(if you intent to choose one of the above connection, you shoud pay a premium for your choice. )
3 if it is strictly compliance with quality system, it can be effective to prevent fire by flammable gas, such as coal gas, liquid petroleum gas and natural gas,carbon monoxide and monitor automatically.
4 widely use in house, coal station, colliery ,car and so on