General description High-quality carbon monoxide detector designed to ensure the safety of your family and property. This device features a light and sound alarm warning system that activates when dangerous levels of carbon monoxide are detected. Technical specifications Alarm Volume: 85 dB Power Supply: DC 3V (requires 2 AAA batteries, not included) Sensor Type: Electrochemical Gas Detection Type: Carbon Monoxide Material: ABS Alert Times: 50 ppm (alert within 60-90 minutes), 100 ppm (alert within 10-40 minutes), 300 ppm (alert within 3 minutes) LED Indicators: Green LED flashes every 40 seconds (unit operational), Red LED flashes when CO is detected LCD Display: Shows CO levels from 000-999 PPM; "Lb" indicates low battery