Dahua · DHI-ARM320-W2 · Wireless Input Expander · Dual InputInput ExpanderDahua DHI-ARM320-W2 Wireless Input Expander
The Dahua DHI-ARM320-W2 is a wireless input expander (transmitter) that brings external powered wired detectors into a compatible Dahua wireless alarm system — perfect for retrofits and mixed wired/wireless installs where you want to keep an existing detector without running cable back to the hub. It offers two inputs (alarm + anti-tamper), supports six alarm types, and uses AES128-encrypted two-way RF with frequency hopping.
Specifications — DHI-ARM320-W2
| Model |
DHI-ARM320-W2 |
| Type |
Wireless Input Expander / Transmitter |
| Alarm Inputs |
2 (1 alarm + 1 anti-tamper) |
| Supported Alarm Types |
Intrusion, medical, fire, emergency, gas, tamper |
| External Power Support |
Yes |
| Tamper Alarm |
Yes (triggers when moved) |
| Overheating Alarm |
Yes |
| Communication |
Two-way wireless RF |
| Encryption |
AES128, with frequency hopping |
| Updates |
Cloud update |
| Warranty (Australia) |
3 years · CCTV Guru Australia |
