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The Dahua DHI-ARA11-W2 Wireless Door Detector is a compact sensor that triggers an alarm whenever an armed door or window is opened. It supports two-way communication, frequency hopping, and AES128 encryption, and can display the open/close state on the DMSS App in real-time. Ideal for villas, shops, apartments, and indoor security systems.
The Dahua Wireless Door Detector combines a sensor and a magnet to monitor doors and windows. When armed, opening a door immediately triggers an alarm, and the system sends real-time notifications to the DMSS App, keeping users informed from anywhere.
Equipped with a tamper alarm, low battery warning, and test mode, this device ensures continuous, secure operation. Cloud update support allows for easy firmware upgrades, and the PC + ABS casing provides durability while remaining lightweight. It’s suitable for non-metal doors, with a detection distance of less than 40 mm (1.57″).
Two-way wireless communication with frequency hopping
AES128 encryption for secure signaling
Tamper alarm and low battery alert
Supports cloud updates for easy maintenance
Real-time open/close status on DMSS App
Compact, wall-mount design with PC + ABS casing
Sensor type: Reed switch
Suitable for non-metal doors
Communication distance: up to 1,000 m (open area)
Long battery life: 2–4 years depending on configuration
Carrier Frequency: 433.1–434.6 MHz
Power Supply: CR123A battery
Power Consumption: Max 70 mW
Operating Temp: –10 °C to +55 °C
Operating Humidity: 10–90 % RH
Dimensions: 100.2 × 20.8 × 20.3 mm
Weight: 70 g (net), 115 g (gross)
Installation: Bracket mount
Casing Material: PC + ABS
Battery Life: 4 years (NO type), 2 years (NC or Pulse type)
Temperature Measuring Range: –15 °C to +65 °C
Precision: ±1 °C
Resolution: 1 °C
Movement Detection Distance: < 40 mm
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