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Used together with a call transmitters (call button), the monitor display (signal receiver) ZJ-82 has been developed to receive instant messaging and to improve the communication processes. The monitor call display ZJ-82 works via radio frequency. With a large screen, it can exhibit up to 3 signals simultaneously and has the option to choose different melodies.
Used together with a call receiver, the call button (signal transmitter) SYT500-3S has been developed to send instant messaging and to improve communication processes. The wireless call button SYT500-3S 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.