Smoke detector, combined smoke and carbon monoxide detector, composite alarm with audible warning and battery-powered digital display

General Description This 2-in-1 smoke and carbon monoxide detector uses high-precision electrochemical sensors, providing reliable detection of both carbon monoxide and smoke. It is ideal for indoor use in locations such as homes, factories, shopping centers, and offices. Technical Specifications High-precision electrochemical sensor for CO Infrared photoelectric sensor for smoke detection Audible alarm ≥ 85 dB Operates on 3 AA 1.5V batteries (not included) Compatibility and Accessories Suitable for installation in various indoor environments Included: mounting bracket and screws for installation Installation To install, drill two holes where marked, insert the plastic eyelets, and then attach the bracket to the ceiling using the screws provided. Operation After installation, press the 'test' button to verify operation. The detector will sound an alarm if smoke or carbon monoxide is detected.