SPECIFICATION
|
Model |
HM2WD-W |
HS2WD-EFA |
|
Working Voltage |
AC 100–240V, 50/60 Hz |
AC 100–240V~, 50/60 Hz, 10 mA |
|
Backup Battery |
3.7V, 720 mAh Rechargeable Battery |
3.7V, 720 mAh Rechargeable Battery |
|
Alarm Sound Level |
≥95 dB (at 1m) |
≥95 dB (at 1m) |
|
Networking |
868 MHz / 444 MHz / 433 MHz |
ZigBee |
|
Wireless Network Range |
≤200m (Open Area) |
≤80m (Indoor) |
|
Operating Temperature |
-10°C ~ +40°C |
-10°C ~ +50°C |
|
Operating Humidity |
≤95% RH (Non-condensing) |
≤95% RH (Non-condensing) |
|
Dimensions |
Φ80 × H32 mm (Plug Not Included) |
Φ80 × H32 mm (Plug Not Included) |

DoC-HS2WD:https://www.heimantech.com/product/common/upload/2025/08/09/20250809100723JK.pdf









