General description This Wireless Mini Carbon Monoxide Alarm Detector is designed for both home and car safety. It features advanced electrochemical high-sensitivity sensors that accurately detect carbon monoxide gas leaks, providing effective protection against potential dangers while minimizing false alarms. Technical specifications Detection range: 000 to 999 PPM Alarm sound level: 85 dB Power supply: 3x1.5V AA batteries (not included) Installation Effortless installation by unscrewing the backplate and securing it to the desired position. Insert the batteries and connect the detector to the backplate, then rotate it into place. Usage Continuously monitors carbon monoxide concentration in real-time. Triggers an alarm at 50 PPM and activates a blue backlight for readings above 30 PPM. Low battery alert notifies when battery replacement is needed.