A wired security system is connected by low-voltage wires and a wireless security system employs tiny radio transmitters which transmits signals to the central control unit. All these control units have batteries and if there is a power failure or if the wires are cut many systems have batteries that automatically recharge when the unit is online with the household power.
This is all about access control system and its types which provides security by giving flexible control over who is allowed to enter your premises. .
- AUTOMATIC TURNSTILE
- AUTOMATIC BOLLARD
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