About this item
- Handheld Carbon Monoxide detector with high precision CO sensor
- Visual alarm, audible alarm, vibrating alarm, and real-time CO display from 1 to 1,000 PPM
- Sounds a low-level alert at 50PPM and a high-level alert at 150PPM
- Alarm memory feature records the highest level of CO
- Protects during a power failure - CO detector operates on a 5V power source with 3.7V 2000mAh rechargeable battery backup