Battery operated carbon monoxide detector with TEST button - with certificate "Tested in P

The purpose of this modern alarming device is to constantly monitor concentration of carbon monoxide and to report values on its backlit LCD display. It has been equipped with a high-quality electrochemical sensor and it gives both sound and visual alarms. Test button allows to check proper operation of the device and to mute the alarm. Carbon monoxide concentration is measured within the range from 25ppm to 550 ppm and the last value that triggered the alarm is memorized by the device. This detector has low battery indication, displays ambient temperature from -15°C to 50°C and has a built-in auto-recovery system. It complies with EN 50291-1:2010/A1:2012. The average life time of the internal sensor is approx. 7 years and its end of life is indicated by sound (beep) and visually (display, LED). Each detector has been tested in Poland and has a unique certificate with product serial number.