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Explosion Proof H2 and All Flammable Gas Detector

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Explosion Proof H2 and All Flammable Gas Detector
Monitoring Support: Natural gas, liquefied petroleum gas, coal gas , alkanes, alkynes , alkenes and other flammable gases Alcohols, ketones , benzene , gasoline and other flammable vapors of organic( ...

SMS Alarm and Voice Calling Security Device

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SMS Alarm and Voice Calling Security Device
monitoring and indicate zone fault. 8.Long distance wireless detector signal can be repeated by repeater used. 9.Supports neighbour report alarm instead in case tel line off. 10.Other features ...
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