SPECIFICATION
|
Model |
HM-638THS |
HM-638THM-AC |
|
Power Supply |
DC 3V (1 × CR-2/3AZ Lithium Battery) |
120V AC, 60Hz, with 1 × CR-2/3AZ Backup Battery |
|
Battery Life |
10 years (Battery Not Replaceable) |
10 years (Battery Not Replaceable) |
|
Alarm Indicator |
Red LED Flashes, Alarm Sound ≥85 dB (at 10 ft) |
Red LED Flashes, Alarm Sound ≥85 dB (at 10 ft) |
|
Operating Temperature |
40°F (4.4°C) ~ 100°F (37.8°C) |
40°F (4.4°C) ~ 100°F (37.8°C) |
|
Operating Humidity |
≤95% RH (Non-condensing) |
≤95% RH (Non-condensing) |
|
Dimensions |
L124.8 mm × W124.8 mm × H37 mm |
L124.8 mm × W124.8 mm × H37 mm (Without Mounting Bracket) |
|
Certification |
ETL UL 217+CAN/ULC S531 |
ETL UL 217+CAN/ULC S531 |


SPECIFICATION
| SENSOR TYPEPhotoelectric |
| POWER SUPPLYAC100-240V with backup Sealed |
| INTERCONNECTIONStandalone/Hardwirelnter-linked(optional) |
| SOUND LEVEL≥85dB/3m |
| WORKINGTEMPERATURE4.4°C~37.8°C(40°F~100°F) |
| WORKING HUMIDITY≤95%RH(no condensation) |
| INSTALLATION POSITIONSWall mounting/Ceiling mounting |
| MOUNTING TYPEMounting bracket |
| POWER SUPPLY MODE10 years Battery Built-in |









