Waterproof, dustproof, adopts stainless steel casing, and the level reach IP65. The wire was made by Teflon, oil resistance, acid resistance and alkali resistance. Automatic dialing function: Press the emergency button, and it will automatically dial the designated number for you after 3 to 5 seconds.
Outdoor communication is an integral part of many industries and businesses. Weather adversities have posed several challenges for voice-based communication...
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