MQ-138 - HANWEI ELECTRONICS

MQ-138 GAS SENSOR

HANWEI ELECTRONICS CO.,LTD TECHNICAL DATA MQ-138 http://www.hwsensor.com MQ-138 GAS SENSOR FEATURES Wide detecting scope Fast response and High sensitivity Stable and long life Simple drive circuit APPLICATION They are used in Breath alcohol detector, solvent detectors ,Air quality control equipments for buildings/offices, are suitable for detecti.

Features

Wide detecting scope Fast response and High sensitivity Stable and long life Simple drive circuit APPLICATION They are used in Breath alcohol detector, solvent detectors ,Air quality control equipments for buildings/offices, are suitable for detecting of n-Hexane, Benzene, NH3, alcohol, ,smoke, CO ,etc. SPECIFICATIONS A. Standard work condition Symbol Vc VH Parameter name Circuit voltage Heating voltage Technical condition 5V±0.1 5V±0.1 Remarks AC OR DC ACOR DC RL Load resistance RH Heater resistance can adjust 31Ω±3Ω Room Tem PH Heating consumption less than 850mw B. Environ.