Portable Carbon monoxide detector

Portable Carbon monoxide detector

Operating voltage: 4.5V(3 AAA batteries)      

1.CO range :0-999ppm
2. Resolution: 1 ppm                                   

3. Accuracy: (under the conditions of temperature

20 + / -5 °C, humidity of 50 + / -20% accuracy ) +

 / -20% (f 0 ~ 100 ppm) + / -15% (100 ~ 500 ppm )                                   

5. Battery Life: 250 hours (without backlight)   

                        35 hours (backlight use)