LCD Combination CO Carbon Monoxide Detector

❥MCU processing and SMT Manufacture Technology    ❥High accurate electrochemical sensor    ❥3-5 years’ sensor lifetime    ❥85-decibel alarm sound    ❥LCD display    ❥Simple installation    ❥Low battery warning    ❥Manual Test / Auto-Reset    ❥CE, Rohs and EN50291 approved    This carbon monoxide detector includes a backlight digital display feature. The backlit digital display feature allows for easy viewing of carbon monoxide levels from 001-999 PPM (parts per million). When the leaked carbon monoxide concentration reaches the given alarm level, the detector LED flashes red, and the buzzer gives out alarm sounds. This product can be well used in villas, factories, shopping malls, warehouses, office buildings, etc.    Specifications: ❥Power Supply: 3*AA batteries (NOT included)  ❥Sensitivity/Alarm Time:    50 ppm, Within 60~90 minutes;  100 ppm, Within 10~40 minutes;  300 ppm, Within 3 minutes  ❥Static Current: <80uA (200uA when the LCD displaye