Jiangxi, Anhui portable multi-gas detector alarm TN-4A

1. color oled display continuous real-time display of gas concentration 2. a high degree of protection for dark, damp environment 3. Automatic zero and calibration function 4. boot automatically shipped fully functional tests (including sensor fault detection) 5 . Chinese menu operation mode 6 gas concentration curve browsing, easy and intuitive (optional) 7 screen display can be flipped upside down (optional) 8. event recording function (optional) 9. detect some type of gas can be set ( optional) 10 with sound, light, vibration three settings Alarm 11. rechargeable lithium-ion polymer battery