1. Adopts MCU processing and SMT Manufacture Technology
2. High stable electrochemical sensor
3. 3-5 years’ sensor lifetime
4. 85 decibel alarm sound
5. LCD display
6. Simple installation
7. Low battery warning
8. Manual Test / Auto-Reset
9. Comply to CE, Rohs, and EN50291
2. High stable electrochemical sensor
3. 3-5 years’ sensor lifetime
4. 85 decibel alarm sound
5. LCD display
6. Simple installation
7. Low battery warning
8. Manual Test / Auto-Reset
9. Comply to CE, Rohs, and EN50291