Dahua Technology

Dahua Input Expander module ARM320-W2

Rs. 2,240.00

~~Rs. 2,688.00~~ Rs. 2,240.00

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Overview

The Dahua ARM320-W2 Wireless Input Expander Module is designed to integrate third-party wired detectors into Dahua AirShield wireless alarm systems. The module receives alarm signals from external devices and transmits them wirelessly to the alarm hub, allowing users to expand existing security systems without replacing wired sensors.

Featuring two alarm inputs, auxiliary power output, two-way wireless communication, AES128 encryption, and frequency hopping technology, the ARM320-W2 ensures reliable and secure operation. Built-in movement detection, tamper protection, overheating alarm, and cloud firmware updates provide enhanced system security and easy maintenance.

Key Features

✔ Converts wired detectors into wireless devices

✔ Supports six alarm types: Intrusion, Medical, Fire, Emergency, Gas and Tamper

✔ Two alarm inputs (alarm and anti-tampering)

✔ 3.3 V auxiliary power output for external devices

✔ Built-in triaxial accelerometer for movement detection

✔ Overheating alarm support

✔ Two-way wireless communication

✔ AES128 encryption

✔ Frequency hopping technology

✔ Cloud firmware update and automatic recovery

✔ Tamper alarm and low battery detection

✔ Battery life up to 5 years

Why Choose Dahua ARM320-W2?

Upgrade Existing Security Systems

Integrate traditional wired detectors into Dahua AirShield wireless alarm systems without extensive rewiring or equipment replacement.

Reliable and Secure Communication

AES128 encryption and two-way communication provide secure signal transmission and enhanced system stability.

Enhanced Protection

Built-in movement detection and tamper alarms immediately notify users if the device is moved or interfered with.

Power for External Devices

The integrated 3.3 V auxiliary output allows compatible third-party detectors to receive power directly from the module.

Long Battery Life

Three CR123A batteries provide up to five years of operation, minimizing maintenance requirements.

Technical Specifications

Feature	Specification
Product Type	Wireless Input Expander Module
Alarm Inputs	2 (1 Alarm Input + 1 Tamper Input)
Auxiliary Power Output	3.3 V, Up to 10 mA
Supported Alarm Types	Intrusion, Medical, Fire, Emergency, Gas and Tamper
Sensor	Built-in Triaxial Accelerometer
LED Indicator	1 × Green Alarm Indicator
Button	1 × Power Button
Remote Upgrade	Cloud Update
Low Battery Detection	Supported
Tamper Protection	Supported
Temperature Monitoring Range	-10°C to +55°C
Communication Mechanism	Two-Way Wireless Communication
Encryption Mode	AES128
Frequency Hopping	Supported
Wireless Frequency	433.1 MHz – 434.6 MHz
Transmission Power	Up to 10 mW (EIRP)
Communication Distance	Up to 1,300 m (Open Area)
Operating Current	45 μA
Alarm Current	50 mA
Power Supply	3 × CR123A Batteries
Battery Life	Up to 5 Years (4 Years with Pulse Input)
Maximum Power Consumption	150 mW
Operating Temperature	-10°C to +55°C
Operating Humidity	10%–90% RH
Installation	Surface Mount or Inside Third-Party Device
Casing Material	PC + ABS
Dimensions	102 × 39 × 21.5 mm
Net Weight	77 g
Gross Weight	135 g
Certification	CE
Security Grade	EN 50131 Grade 2