Seller lingbaoankang

portable gas leakage alarm detector with smart voice, digital display and electrochemistry sensor 1. alarm peak query function 2. alarm point setting function 3. super-smart voice function 4. concentration unit conversion 5. suitable gas: natural gas 6. concentration alarm: 1-25 pourcentlel ?500-12500ppm? 7. alarm set: 0.5-9.9kppm or 1.0-19.8 pourcentlel 8. input power: 3.7v 2600mah lithium battery 9. static current: ?200ma 10. alarm current: ?500ma 11. response time: ?30 second 12. alarm sound: ?80 decibel (from 1m) 13. sensor: japanese electrochemistry sensor 14. agent query function 15. alarm peak query function 16. smart voice alarm and digital display 17. alarm point settings 18. concentration unit conversion