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HANWEI ELECTRONICS CO ., LTD
MQ –7
http://www.hwsensor.com
TECHNICAL DATA
MQ-7
GAS SENSOR
FEATURES * High sensitivity to carbon monoxide * Stable and long life APPLICATION They are used in gas detecting equipment for carbon monoxide (CO) in family and industry or car. SPECIFICATIONS A. Standard work condition Symbol Parameter name Technical condition Remark Vc circuit voltage Ac or Dc 5V±0.1 VH (H) Heating voltage (high) Ac or Dc 5V±0.1 VH (L) Heating voltage (low) Ac or Dc 1.4V±0.1 RL Load resistance Can adjust RH Heating resistance Room temperature 33Ω ±5% TH (H) Heating time (high) 60±1 seconds TH (L) Heating time (low) 90±1 seconds PH Heating consumption About 350mW b.
MQ-7 Datasheet
