CD704 Carbon Monoxide Sensor (CO), with display

An electrochemical sensor detector detects CO (carbon monoxide) levels and indicates contamination. The current CO level is constantly displayed on the screen. Low CO warning. Functions of the test button: 1) to check the device and the battery - in standby mode 2) to turn off the alarm (mute) for up to 10 minutes. Alarm volume> 85dB. Functional temperature range -10 / + 40´C, permissible relative humidity <93%. After 10 years of use, it automatically announces the end of its service life. Detailed instructions for use in Estonian are included in the package. A set of two screws and a dowel is included for easy installation. 3XAA batteries not included. Complies with European Union standard EN50291.