HOME » PRODUCT » Fire Safety » Carbon Monoxide Alarm HM-735ESY Series

Carbon Monoxide Alarm HM-735ESY Series

Carbon monoxide is the "silent killer" – colourless, odourless, and deadly. The HEIMAN HM-735ESY provides 24/7 protection, certified to the rigorous BS EN 50291-1:2018 standard. It transforms invisible danger into clear audible and visual alerts, fortifying your home's safety defences. (Multiple models and battery options available.)

Precision CO Detection: Rapid Response

Heiman's specialist CO detection is unaffected by other gases. Whether it's leaks from gas stoves, boilers, fireplaces, or generators, the detector responds rapidly within safety standards, triggering immediate alarms and giving you ample time to evacuate.
High-Stability Electrochemical Sensor

The high-quality electrochemical sensor offers strong interference resistance, high accuracy, and stable performance. Eliminates false alarms or missed detections caused by sensor failure, providing reliable protection throughout its 10-year service life.
Real-Time LCD Display: Visible CO Levels, Proactive Safety

The crisp LCD display shows real-time CO concentration in PPM – no need to wait for an alarm. Normally displays "0ppm" (safe). Even minor increases (from poor ventilation or faulty heating) are shown early, letting you take proactive action.
≥85dB High-Volume Alarm

The alarm reaches ≥85dB at 3m – loud and penetrating, quickly alerting family members even during deep sleep. Provides critical early warning.
Automatic Fault Detection: Distinct Alerts + Flexible Muting

Continuously monitors sensor and circuit status. If a sensor fault or short circuit occurs, the yellow LED flashes twice every 60 seconds and the buzzer beeps twice simultaneously – providing a clear, distinct fault indication that prevents hidden risks being overlooked.
Digital Temperature Compensation

Features digital temperature compensation, automatically adapting to temperature fluctuations from -10°C to +40°C. Whether installed in basements, kitchens, or lofts, it delivers reliable alerts and eliminates false alarms caused by temperature shifts.