Smoke Alarm HM-638PHM-AC
|
Model |
HM-638PHW-AC |
HM-638PHW |
HM-638PHM-AC |
|
Power Supply |
220–240V(50Hz, 1.2W MAX) |
DC 3V, Built-in 10-Year Battery |
120V AC, 60Hz, with 1 × CR-2/3AZ Backup Battery |
|
Battery Life |
Built-in 10-Year Battery Backup |
10-Year Battery Backup |
10 years (Battery Not Replaceable) |
|
Transmit Power |
5.7 dBm |
5.7 dBm |
/ |
|
Wireless Protocol |
868 MHz |
433 MHz |
/ |
|
RadioProtocol |
SRD |
SRD |
/ |
|
Sound Level |
≥85 dB (at 3 m) |
≥85 dB (at 3 m) |
≥85 dB (at 10 ft) |
|
Operating Temperature |
0 °C ～ +50 °C |
0 °C ～ +50 °C |
40 °F (4.4 °C) ～ 100 °F (37.8 °C) |
|
Operating Humidity |
≤95% RH (Non-condensing) |
≤95% RH (Non-condensing) |
≤95% RH (Non-condensing) |
|
Wireless Interconnection |
Up ～ 40 Alarms Maximum |
Up ～ 40 Alarms Maximum |
/ |
|
Wired Interconnection |
Up ～ 20 Alarms over 250 m Maximum |
Up ～ 20 Alarms over 250 m Maximum |
Up ～ 20 Alarms over 250 m Maximum |
|
Dimensions |
L125 mm × W125 mm × H46 mm |
L125 mm × W125 mm × H46 mm |
L125 mm × W125 mm × H46 mm |
|
Certification |
CE、BSI、UKCA、RCM、AS 3786 |
CE、BSI、UKCA、RCM、AS 3786 |
UL217 、CAN/ULC S531 、FCC、RCM、AS 3786 |
-
Hardwired Interconnection
Interconnect multiple units for whole-home coverage.When one alarm triggers, all units sound together.Expand protection across bedrooms, halls and floors.Hardwired reliability ensures constant power connection. -
Early Warning Detection
Advanced sensing technology detects smoke rapidly.Provides precious extra time for safe evacuation.Reliable photoelectric sensor reduces false alarms.Guards your family with responsive fire detection. -
10-Year Sealed Backup Battery
Sealed lithium battery provides decade-long backup power.Protects your home even during electrical outages.Eliminates frequent battery replacement hassles.Long-lasting reliability for continuous safety coverage. -
Oversized Button for Easy Test & Hush
Large, easy-press button for effortless testing and silencing.Quickly hush false alarms with a single touch.Convenient for users of all ages, including seniors.Simplify daily operation while ensuring reliable protection. -
End-of-Life Reminder
Automatic alert when the alarm reaches lifespan limit.Ensures timely replacement for uninterrupted safety.Never guess when your device needs upgrading.Stay protected with proactive maintenance reminders.
DOP-HM-638PHW-AC&HM-638PHM-AC：https://www.heimantech.com/product/common/upload/2025/08/21/20250821111104fL.pdf
HM-636,638 series DECLARATION OF PERFORMANCE(BSI certificated)：https://www.heimantech.com/product/common/upload/2026/05/19/2026051984257lq.pdf
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