Carbon Monoxide Detector, Smoke Detector, Home Alarm, Carbon Monoxide Smoke Alarm, High Precision Low Power LCD Digital Display - Fei Yu

General Description The carbon monoxide and smoke detector is an essential device for your home safety. It uses highly reliable electrochemical sensors and infrared photoelectric sensors to effectively detect carbon monoxide and smoke levels. With a digital LCD display, this device provides a clear and accurate reading of detected levels, while being designed for low power consumption and a long standby time. Technical Specifications Dimensions: Ф104*39 mm Operating Temperature: 0-50℃ Operating Humidity: 10%-95% relative humidity Carbon Monoxide Detection Concentration: 0-999 PPM Smoke Sensitivity: 0.1% dB/m - 9.9% dB/m Standby Current: <80 µA Alarm Current: <30 mA Installation To install the detector, follow these steps: Insert 3 AA 1.5V batteries (not included). Upon initial power-up, the buzzer will beep and the display will show a 2-minute countdown. Operation: The detector offers several convenient features: Press the "TEST/RESET" button to check operation; the display will show "0" ppm. To view the alarm concentration, press and hold the "TEST/RESET" button for more than 10 seconds. The green indicator light flashes every 30 seconds during normal operation. When the battery is low, the red indicator light flashes every 10 seconds and the display shows "Lb". When the carbon monoxide concentration exceeds 100 ppm, an alarm will sound with a flashing red indicator light. In case of fire, an alarm will sound when the smoke concentration exceeds 0.1% dB/m³. To activate silent mode, press the test button; the LED indicator will flash to indicate that the alarm is in silent mode. Other features: Low battery reminder. Alarm memory function. Audible and visual alarm with LED indicator. Industrial SMT manufacturing for high stability.