SKU: 90452983445

DAHUA DHI-ARD822-W2 - Botón de pánico doble inalámbrico, Led indicador de estado verde, Alarma de batería baja, App DMSS, Frecuencia 433 MHz, Tecnología: AirShield, Compatible con HUB 1.0 y HUB 2.0

Name: DAHUA DHI-ARD822-W2 - Botón de pánico doble inalámbrico, Led indicador de estado verde, Alarma de batería baja, App DMSS, Frecuencia 433 MHz, Tecnología: AirShield, Compatible con HUB 1.0 y HUB 2.0
Brand: www.bff-linden.de
SKU: 90452983445
Price: 222.00 USD
Availability: InStock
Rating: 4.694800000000001 (473 reviews)

$199.80 $222.00

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Description

DAHUA DHI-ARD822-W2 - Botón de pánico doble inalámbrico, Led indicador de estado verde, Alarma de batería baja, App DMSS, Frecuencia 433 MHz, Tecnología: AirShield, Compatible con HUB 1.0 y HUB 2.0Informacin general. El Dahua DHIARD822W2 es un botn de pnico inalmbrico diseado para emergencias. Utiliza frecuencia RF (433 MHz o 868 MHz segn versin) con comunicacin bidireccional, cifrado AES128 y salto de frecuencia. Cuenta con dos botones para reducir falsas activaciones, indicador LED multicolor para mostrar emparejamiento, seal y batera, y deteccin de batera baja. Soporta actualizaciones automticas por la nube con recuperacin en caso de error.

DAHUA DHI-ARD822-W2 - Botn de pnico doble inalmbrico, Led indicador de estado verde, Alarma de batera baja, App DMSS, Frecuencia 433 MHz, Tecnologa: AirShield, Compatible con HUB 1.0 y HUB 2.0

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Product Reviews

Verified Purchase

PTM

New York, US

★★★★★ 3

Some errors

Format: Paperback

Not too good as I think. Some error between hard copy and online q&a bank. Very careful if you want to study with this

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Reviewed in the United States on August 21, 2025

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Casey Griffiths

Battle Creek, US

★★★★★ 1

Poor quality, the book is already falling apart.

Format: Paperback

This is a review on quality of the book NOT the content. I just got the book today and the binding on the cover came off immediately. It’s very poorly made!!!

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Reviewed in the United States on May 31, 2026

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2020Shoper

Waukegan, US

★★★★★ 1

Description is misleading

Format: Paperback

The description states that the book includes the access code. That is not true, the access code has been used and publisher is not honoring coffee

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Reviewed in the United States on April 24, 2026

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