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This Alecto COA3910 carbon monoxide detector is designed to detect carbon monoxide (CO) and provide an acoustic warning signal at elevated concentrations. The product is used for CO detection in indoor spaces and is suitable for use in homes and areas with combustion sources. The detector operates using a thermal carbon monoxide sensor and is designed to detect both low and high concentrations of carbon monoxide. If preset thresholds are exceeded, an 85-decibel alarm signal is activated. The carbon monoxide detector has a ten-year sensor life and is powered by three AA batteries, which are included. The test button and reset button allow the operation to be checked and the alarm to be reset after activation. Applications • Carbon monoxide detection in homes • Detection in rooms with central heating boilers, stoves, or fireplaces • Preventive indoor CO monitoring • Fixed mounting on wall or ceiling Specifications & features • Brand: Alecto • Type: COA3910 • Detector type: Carbon monoxide detector • Sensor type: Thermal carbon monoxide sensor • Alarm sound level: 85 dB • Power supply: Battery operated • Battery type: 3× AA battery (included) • Sensor life: ten years • Operation: Test button and reset button • Display: Yes, LCD • Mounting: Wall or ceiling mounting • Dimensions: 110 x 78 x 37 millimeters • Operating temperature: -10 °C to 45 °C • Material: Plastic • Colour: White • Certifications: EN 50291, NBN EN 50291, CE Explanation of connection Battery power means that the carbon monoxide detector is powered by replaceable batteries and functions without a connection to the mains. Explanation of additional features LCD display The display shows status information and notifications, providing quick insight into alarm status, battery status, and sensor warnings. 10-year sensor The thermal sensor is designed to detect carbon monoxide for ten years without replacement. Detection of low and high CO concentrations The detector warns of both low and dangerously high concentrations of carbon monoxide. Status indication via sound and LEDs Acoustic signals and indicator lights show when there is an alarm, low battery voltage, or the end of the sensor's service life. Textured casing The detector has a granular surface texture, making it less noticeable after mounting in living spaces. Complete mounting material supplied The carbon monoxide detector comes with a base plate, screws, and wall plugs for fixed mounting. Explanation of detection types Carbon monoxide detection measures the concentration of carbon monoxide gas in the air and activates the alarm when preset safety thresholds are exceeded. Explanation of standards EN 50291 is the European product standard for domestic carbon monoxide detectors and describes requirements for gas detection, alarming, and reliability. NBN EN 50291 is the Belgian adoption of the European standard EN 50291 with essentially the same technical requirements. CE indicates that the product complies with the applicable European directives regarding safety, health, and environmental protection. Ask a product question