The Dongle (or receiver) is a USB device that is connected to your computer. It recieves the information that the sensor(s) mounted in the Belfry transmits to it via its own private network which it creates on powering up. You only require one dongle per system and can add up to 12 bell sensors to it at any time making it one of the most easy and cost effective systems to build overtime.

Dongles are sold as part of complete bell systems only – please see our online shop for more information

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