The Bellman Visit Telephone Transmitter lets you know if the telephone or TTY is ringing, or if someone has opened a door/window. It connects quickly and easily: just plug it into any telephone jack within 28 metres (95 feet) of your Bellman Visit receiver. You can also connect the transmitter to a magnetic switch, which detects a door or window opening. The unit is powered by a long-lasting (three-year life) 9-volt alkaline battery.
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