Dahua ARD821-W2(868) wireless panic button for alarm system – 868MHz

Panic button for Dahua wireless alarm system

• Encrypted (AES128) communication between the fingertip and the control centre on 868.0 MHz-868.6 MHz, distance up to 1400m in direct line-of-sight mode.
• Battery power supply (CR2032 included), maximum current consumption in operating mode 28mA.
• Battery discharge monitoring, operating temperature -10 °C to +55 °C, plastic housing
• System management and day-to-day use is done through the DMSS app, the installer level app is COS PRO.

With normal use (a couple of times a week) and good coverage, a single battery lasts up to 5 years.