The MURS Chime is an auxiliary chime that can be connected to the M538-BS transceiver.
The chime module connects to the N/O relay output on the base station, and will play one of three tunes (Westminster Chime, London Bridges, or Oh, My Darling) when the base station receives a signal from the MURS Alert transmitter.
The chime has a volume control, and operates on two AA alkaline batteries (not included).