HEIMAN Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector, Battery Powered, 10 Year Sensor, 722ES by Amazon.co.uk

• 【EN 50291 Certified Carbon Monoxide Detector】: High accuracy and reliable long life electrochemical CO sensor and the CO alarm detector complies with EN 50291 standard. Three LED lights indicate three operation conditions: Red(Alarm), Yellow(Fault), Green(Normal Standby).

• 【High Accurate Response】: Our Co Alarm Detector featuring a reliable 10 year life electrochemical sensor and digital temperature compensation technology designed to accurately measure low levels of dangerous carbon monoxide with fewer false alarms and can be used for 10 years. Insurance Safety of your Life.

• 【Convenient and Easy Installation】: Our carbon monoxide alarm is stylish, fully functional, easy to carry, and can be wall-mounted or placed on a desktop. It can detect colorless, odorless, tasteless and deadly carbon monoxide effectively. Self test function, automatic fault check indicator, low battery warning. All functions are automatically operated by the microchip, which facilitates its use.

• 【85 dB Loud Alarm】: Sounder beeps and Red LED flashes when dangerous level CO gas is detected to alert home members effectively. Alarm level (30-999PPM): 30PPM, alarm after 120 minutes; 50PPM, alarm in 60-90 minutes; 100PPM, alarm in 10-40mins; 300PPM, alarm in 3mins, automatic reset when the CO level returns to safe level.

• 【5-Year Battery Safe Mode】: This carbon monoxide alarm is equipped with 2 * 1.5V AA battery for a life of up to 5 years, special battery tamper-resistant design, there is no way to install the detector without battery, more secure.