- Protection from the silent killer
- Battery operated use it anywhere in your home
- Digital display
- Accurate readout 10-999parts per million ppm
- 3 danger levels
- low high & crisis
- Peak level memory
- shows highest level recorded in last 4 weeks
- 9V battery operated long life lithium option available
- 6-year warranty
- Latest electrochemical technology class leading for accuracy
- Independently tested to British & European standards