ARM310-W2-868 - module allows the integration of wired sensors into wireless alarm systems. It supports six alarm types, has configurable NO/NC input and communicates up to 1,200 m in open spaces thanks to AES128 encryption and frequency hopping. It is compatible with the DMSS app for quick configurations and cloud updates. It includes temperature detection, signal strength and low battery alarm. Powered by CR123A battery with up to 4 years of autonomy, it is ideal for residential and commercial security solutions. Dahua
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ARM310-W2-868 | WIRELESS MODULE FOR INPUT EXPOSURE

Dahua ARM310-W2-868 is a wireless expansion module designed to integrate wired devices into wireless alarm systems, providing a versatile and reliable solution for residential and commercial security. Compatible with DMSS app for quick configuration, it supports six alarm types: intrusion, medical emergency, fire, emergency, gas leakage and tampering. Equipped with configurable dry contact input (NO/NC), signal strength detection, low battery alarm and temperature monitoring, it ensures stable communication with frequency hopping technology and AES128 encryption. Its communication range reaches up to 1,200 meters in open space, ensuring extensive and reliable coverage.
Main specifications:
- Support for multiple alarm types: handles intrusion, fire, medical emergencies and gas leaks
- Reliable communication: Range up to 1,200 m with frequency hopping technology and AES128 encryption
- Configurable inputs: accepts NO/NC contacts for different types of wired sensors
- System alarms: reports low battery, tampering and temperature changes
- Remotely upgradeable: Supports cloud updates with automatic recovery in case of failure.
Further details
✅ Security:
✅ Monitoring:
✅ Updates:

Technical data sheet
MODEL | ARM310-W2-868 |
Port | |
Indicator Light | 1 × green alarm indicator |
Button | 1 x power button |
Protection Zone | 1-channel dry contact input |
Function | |
Tamper Alarm | Yes |
Remote Upgrade | Cloud update |
Low Battery Alarm | Yes |
Test Mode | Yes |
Search | Signal strength detection |
Wireless | |
Carrier Frequency | 868.0MHz–868.6MHz |
Communication Distance | Up to 1,200 m (3,937.01 ft) in an open space |
Communication Mechanism | Two way |
Frequency Hopping | Yes |
Encryption Mode | AES128 |
General | |
Power Supply Mode | CR123A battery |
Power Consumption | Max. 125mW |
Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) (indoor) |
Operating Humidity | 10%–90% (RH) |
Dimensions | 100.2mm × 20.8mm × 20.3mm (3.94" × 0.82" ×0.80") |
Package Dimensions | 135.0mm × 98.5mm × 27.8mm (5.31" × 3.88" × 1.09") |
Installation Mode | Bracket mount |
Net Weight | 70g (0.15 lb) |
Gross Weight | 115g (0.25lb) |
Certification | THERE IS |
Battery Life | 4 years (The external input type is NO) 2 years (The external input type is NC or Pulse) |
Casing Material | PC + ABS |
Temperature | |
Measurement Range | –15 °C to +65 °C (+5 °F to +149 °F) (indoor) |
Measurement Precision | ±1°C (±1.8°F) |
Resolution | 1 °C (33.8 °F) |