Carbon Monoxide Detector With 85db Continuous Tone Sound Alarm

CO & Smoke Detector Sensor Alarm High accurate electrochemical sensor and infrared photoelectric sensor LCD display concentration PPM Ultra-long standby time, low current consumption Low-battery warning Alarm memory function Alarming pause (hush mode) Sound & flash alarm & LED indicating alarm SMT manufacture technology, reliable stability ABS fireproof engineering plastic material 3*1.5V AA battery supply (Batteries not include) What’s in the box 1*Sensor 1*guide 1*Installation kit