Wired + Wireless interconnected smoke alarms HM-638PHW HM-638PHW-AC
The Heiman HM-638PHW wireless interconnected and HM-638PHW-AC wired + wireless interconnected smoke alarms are equipped with a 10-year battery backup and utilise Heiman’s advanced, precision-calibrated sensor technology, complying with the latest industry standards. These devices allow multiple alarms to be interconnected, providing early warning throughout the home, whilst the 10-year battery backup ensures continuous protection in the event of a power cut, giving you complete peace of mind.
SPECIFICATION
|
Model |
HM-638PHW-AC |
HM-638PHW |
|
Power Supply |
220–240V~ (50Hz, 1.2W MAX) |
DC 3V, Built-in 10-Year Battery |
|
Battery Life |
Built-in 10-Year Battery Backup |
10-Year Battery Backup |
|
Transmit Power |
5.7 dBm |
5.7 dBm |
|
Wireless Frequency |
868 MHz |
433 MHz |
|
Radio Pro～col |
SRD |
SRD |
|
Sound Level |
≥85 dB (at 3 m) |
≥85 dB (at 3 m) |
|
Operating Temperature |
0 °C ～ +50 °C |
0 °C ～ +50 °C |
|
Operating Humidity |
≤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 |
|
Dimensions |
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 |
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Wired or Wireless Interconnection
Select wired-plus-wireless or wireless-only mode.Works in homes with or without wiring.Link multiple units for whole-home alerts.Expand coverage across rooms and floors.Perfect for new builds and retrofits.Customize your safety network freely. -
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.
