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Used together with a call transmitters APE1500 has been developed to receive instant messaging and improve the processes, showing where the call was made.
Used together with a call receiver, the call button (signal transmitter) APE510 has been developed to send instant messaging and to improve communication processes.
The call button APE510 is wireless and works via radio frequency. Due to the durable materials, which are protected by the case, the device has a long life as well as being fully waterproof. With an adhesive pad or with screws, it can be fixed.