The PSA 3 transponder is a major component in the amanTag Human Protection System. It can be used as a standalone device, or in a network. The PSA 3 has three push-buttons, the functions of which depend on the system configuration. The transceiver picks up the call signals from these transponders in a radius of 25 metres and triggers an alarm. This can then be switched through the built-in isolated contact in the transceiver or forwarded to third-party systems via an interface. When configured as an acknowledgement button, it can be used to reset alarms present in the system. The LED gives the user feedback that the transponder has performed its function. The transponders are designed to be used as key fobs, and can also be worn as pendants.
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