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RF integrity monitored heartbeat transmitter
Product Code: QT421
![RF integrity monitored heartbeat transmitter](https://images.findtheneedle.co.uk/findtheneedle/products/12831376.jpg)
RF integrity monitored heartbeat transmitter (use at least 1 per QT422RX)
For more information on RF integrity monitored heartbeat transmitter talk to Powerpoint Fire and Security Ltd
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