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M-823 Waterproof Call Button


Calling for Help Just Press the SOS button or Pull help cord.


The new emergency call button M-823 is designed for installation in bathrooms and wet environments.
Has a big SOS button of help call.
It is easy to program by USB, and set up the desired pager frequency, code address, data rate, repeat time etc. functions.
Frequency synthesized from 303MHz to 915 MHz covers all ISM Band.

      ** Features **
  • Fast Response
  • Direct to pagers
  • Easy installation
  • Easy operation
  • No wires
  • No power cord
  • Antenna inside
  • Hanging on the wall
  • Press button or pull wire to call
  • CR2450 Big battery in side
  • Long distance
  • Frequency synthesized 303-915MHz
  • Option IoT Gateway to smartphones

                   **  Specifications **
Code format: POCSAG
Frequency: 303-915MHz Frequency synthesized.
Baud rate 512/1200/2400 bps
Message: Alphanumeric (Max 40 Character).
RF output 1-12 mW. Programable.
Modulation: FSK ,NRZ.
Deviation: 4.5K
Stability: ±1ppm. Frequency oscillator by TCXO.
Pager Capacity 1 Call And 1 Low battery alert by auto.
Operating Voltage: 1x CR2450 type battery (3V)
Programming: via USB with P/C.
Battery life about 1 year ( 10 Time per day).
Case Size: 75mm X 75mm X 25mm.
Model Weight: 70 g (with battery).
Programming screen

Wireless Devices Inc. Taiwan.

Sales Department. e-mail:

Tel.(8862) 8502 0001