1. NM hot-wire sensor
2. Easy to use
3. Direct testing guide
4. Audio warning
5. LCD indication
6. Backup lamp
7. Power saving design
8. Low battery alert.
9. Power by 2x 1.5V AAA batteries.(Batteries are not included.)
10. Range: 0.00-0.19% BAC & 0.0-1.9g/l
