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Used together with a call transmitters (call button), the monitor display (signal receiver) ZJ-39 has been developed to receive instant messaging and to improve the communication processes.
The monitor call display ZJ-39 works via radio frequency. With a large display it enables to see clearly even in lightly rooms and has the possibility to select different melodies.
Used together with a call receiver, the call button (signal transmitter) YK500-1N-R has been developed to send instant messaging and to improve communication processes.
The wireless call button YK500-1N-R works via radio frequency and is waterproof, therefore it is also suitable for outdoor use. With the adhesive pad on its back, it can be attached.