Heiman HM2SA-1W Interconnected Wireless Smoke Alarm Sensor

With a highly sensitive photoelectric sensor and its own RF module, the Heiman HM2SA-1W detects smoke in its early stages and synchronises the alarm throughout the home without the need for wiring or Wi-Fi. Its 10-year sealed lithium battery and 85 dB siren at 3 m ensure permanent protection, while the 10-minute "Hush" function allows false alarms to be silenced while maintaining active surveillance.

Coverage and photoelectric detection

The optical sensor monitors up to 40 m² per unit and operates between 0°C and 55°C, reducing false alerts for vapour or light dust and reacting quickly to slow-burning fires.

Long-range wireless interconnection

Its RF link reaches 150-200 m in the open field and allows up to 40 detectors to be linked; when one is activated, all sound the alert simultaneously, covering floors, corridors and rooms in a matter of seconds.

Sealed battery and minimal maintenance

Built-in lithium cell avoids frequent replacements and meets the decade-long cycle; an audible and luminous warning indicates low battery many months before depletion.

Easy installation and use

• Tool-free mounting: swivel base with adhesive or screws.
• Bi-colour LED: indicates normal, alarm and pairing status.
• EN 14604 / CE / RoHS compliant for home and small office use.