GSMHELP Handfree Audio, Alarm Emergency Call Point Intercom Access Control

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  • Built in backup rechargeable battery (3.7V, 1000mA), used for power failure alarm. Through the call button, call the internal stored number for intercom. The working voltage is AC DC12 24V. Key lock for safe installation and easy maintenance. Rainproof design of the whole box. GSM HELP is not only a simple GSM emergency call phone, but also can be used as a site monitoring function and a security alarm box.
  • With dual alarm input ports, can provide emergency alarms in some places, and you can connect the existing sensors or any other relay output type sensors to it for security alarms.
  • The internal rechargeable battery can be connected to work when the power is off. The battery will be automatically charged when the normal power supply works again. If the battery power is low, it will also send an alarm.
  • Very suitable for private houses or public emergency calls, suitable for unmanned cab offices, taxi help calling site, door phones to talk to visitors or any outdoor place. The user only needs to press the button, and then the box will dial the number (two numbers are preset in the memory), and then you can pick up the phone to talk to the visitor.

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