Dahua Alarm Wireless Indoor Siren, 3 Year, DHI-ARA12-W2

Wireless Siren

• Signal strength detection

• Low battery alarm

• Temperature measurement

• Frequency hopping and two-way communication for stable connection

• Supports cloud update with automatic recovery from update failure

• Datasheet

 

Port

• Indicator Light: 1 × green alarm indicator

• Button: 1 × power button

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Function

• Tamper Alarm: Yes

• Remote Upgrade: Cloud update

• Test Mode: Yes

• Low Battery Alarm: Yes

• Signal Strength Detection: Supported

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Wireless

• Carrier Frequency: 433.1 MHz–434.6 MHz

• Communication Distance: Up to 800 m (2,624.67 ft) in open space

• Communication Mechanism: Two-way

• Frequency Hopping: Yes

• Encryption Mode: AES128

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General

• Power Supply: 2 × CR123A batteries

• Power Consumption: Max 230 mW

• Operating Temperature: –10 °C to +55 °C (14 °F to 131 °F) (indoor)

• Operating Humidity: 10%–90% RH

• Product Dimensions: 81 × 81 × 26 mm (3.19" × 3.19" × 1.02")

• Packaging Dimensions: 135 × 98.5 × 56.8 mm (5.31" × 3.88" × 2.24")

• Installation: Bracket mount

• Net Weight: 105 g (0.23 lb)

• Gross Weight: 175 g (0.39 lb)

• Certifications: CE

• Battery Life: 2.5 years (triggered twice weekly, alerts 120s per trigger)

• Sound Pressure: ≥ 105 ± 3 dB @ 1 m

• Casing Material: PC + ABS

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Temperature

• Measuring Range: –15 °C to +65 °C (18.8 °F to 149 °F) (indoor)

• Measuring Precision: ±1 °C (±33.8 °F)

• Resolution: 1 °C (33.8 °F)

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Audio/Video Parameter

• Volume Control: 3 levels