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Dahua DHI-ARD821-W2(868) Dahua radio panic button
Dahua DHI-ARD821-W2(868). Dahua radio panic button. Offers prevention of accidental presses. Two-way RF communication. Multiple LED colors for different states. Cloud update and automatic recovery in case of update failure. IP54 protection Wireless panic button.
One button panic switch
LED indicator for multiple states
Signal strength detection
868 ~ 868.6 MHz two-way radio communication
Radio range up to 1.4 km in open field
AES128 encryption mode
Low battery detection (display battery level on App)
Powered by CR2032 battery (lifetime up to 5 years with two activations per week)
28mA maximum consumption
Operating temperature -10°C ~ +55°C
Relative humidity 10% ~ 90%
Degree of protection IP54
Polycarbonate and ABS plastic shell
Dimensions: 36 (W) x 55 (H) x 14.2 mmWeight: 18g
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