Meco LCD Display Carbon Monoxide Alarm For Kitchen Bedroom Warning Detector Alarm

Characteristics: 1. Red LED: The type of alarm tone is four short alarm sounds. The red LED will flash in alarm mode. 2. Green LED: The green LED flashes every 30 seconds to show that the system is working properly. 3. Alarmmemory: if the system is alarm, press the button, the green LED will flash once for one minute, and the peak alarm level will be displayed on the LCD. 4. Test / Reset button is used to test electronic components of the system and to check correct operation and to reset the system during CO alarm. The blue background light will illuminate when you press the test key or the system alarm. 5. 3-digit LCD display. 6. If CO leakage is less than 999ppm but over 30ppm, this indicates its actual concentration. And the LCD display shows "888" about 2 seconds. Then press the test button, the red LED will flash and go to self-test status, At the same time, the LCD display shows "000" Three minutes later, the LCD display disappear and go to work status. 8. Energy-saving: The type of alarm sound is 4 utes each 5 seconds for the first 4 minutes. After 4 minutes, she will change to 4 mutes every minute to save energy. Package Includes : 1 x CO detector 1 x User Manuel 4 x Screw Details Pictures :