Dahua Alarm ARM310-W2 Wireless input expander

Wireless input expander designed to add an additional wired sensor or device to a wireless alarm system. Supports dry contact inputs (NO/NC), multiple alarm types, temperature monitoring, and encrypted two-way RF communication.

Datasheet

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Key Features

• Supports six alarm types: intrusion, medical, fire, emergency, gas, and tamper

• 1-channel dry contact input

• Supports NO and NC input types (NO default)

• Signal strength detection

• Temperature monitoring

• Low battery alarm

• Two-way wireless communication

• Frequency hopping technology for stable communication

• AES128 encrypted communication

• Cloud firmware update with automatic recovery

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Ports

• Protection zone: 1-channel dry contact input

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Function

• Indicator light: 1 × green alarm indicator

• Button: 1 × power button

• Tamper alarm: Yes

• Remote upgrade: Cloud update

• Low battery alarm: Yes

• Test mode: Yes

• Signal strength detection: Yes

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Wireless

• Frequency: 433.1 – 434.6 MHz

• Communication: Two-way

• Communication distance: Up to 1,000 m (open space)

• Encryption: AES128

• Frequency hopping: Yes

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Electrical

• Power supply: CR123A battery

• Max power consumption: 70 mW

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Battery

• Battery life:

  • Up to 4 years (external input type NO)

  • Up to 2 years (external input type NC or Pulse)

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Temperature Monitoring

• Measurement range: –15°C to +65°C

• Accuracy: ±1°C

• Resolution: 1°C

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Environmental

• Operating temperature: –10°C to +55°C

• Operating humidity: 10%–90% RH

• Certification: CE

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Physical

• Installation: Bracket mount

• Casing material: PC + ABS

• Dimensions: 100.2 × 20.8 × 20.3 mm

• Net weight: 70 g

• Gross weight: 115 g

• Packaging dimensions: 135 × 98.5 × 27.8 mm