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Ajax DoubleButton Hold-Up Device Jeweller in White

SKU: 20850.79.WH1 Category: Brand:


Ajax DoubleButton Hold-Up Device Jeweller in White is a wireless hold-up device with physical and software safeguards against accidental activation.


  • Wireless hold-up device for sending confirmed alerts to alarm receiving centers
  • Physical and software protection against accidental presses
  • Can be used as a keyfob or fixed on a surface for convenience


  • Compatibility: all hubs & ReX
  • OS Malevich 2.10 and higher
  • Radio communication range: up to 1,300 m
  • Jeweller radio technology:
    • 868,0−868,6 MHz
    • Two-way communication
    • Block encryption based on AES algorithm
  • False alarm prevention: Yes
  • Ingress protection: IP55
  • Battery life: up to 5 years, CR2032, 3 V
  • Color: black/white
  • Operating temperature range: from -10°Ð¡ to +40°Ð¡
  • Dimensions: 47 × 35 × 16 mm
  • Weight: 17 g



Additional information

Weight 2.1 kg

Device Type


System Type