Key Specifications/Special Features:

• MQ3 semiconductor alcohol sensor for alcohol checker, breathalyser application
• Standard circuit conditions: VC (circuit voltage): 5VAC, DC
  VH (heater voltage): 5V AC, DC
• RL (load resistance): variable
• RH (heater resistance): 30ohms
• PH (heating power): less than 750MW
• Response time: 10 seconds (70% response)
  Resume time: 30 seconds (70% response)
• Detecting gas concentration range: 10 to 2,000ppm (0.02mg/L-4mg/L) alcohol
• MQ-C303A low consumption alcohol sensor for alcohol checker, breathalyser
• VC (circuit voltage): 3V AC/DC VH (heater voltage): 0.9V AC/ DC
• RL (load resistance): variable
• PH (heating power): less than 150MW
• Detecting gas concentration range: 10 to 2,000ppm (0.02mg/L-0.20mg/L) alcohol
• MR513 hot-wire alcohol sensor
• Excellent sensitivity, large output, virtually unaffected by temperature and humidity
• Remarkable reproducibility and accuracy, resistant to noise gas
• Working voltage: 3V+/- 0.1AC
• DC working current: Linearity accuracy: +/- 5%
• Response time: < / = 10 seconds
• Resume time: < / =30 seconds
• For industrial field alcohol concentration detection
• Detecting alcohol concentration range: 0 to 1,000ppm (0.01mg)
• Sensitivity mV: 60, 100ppm alcohol
• Alcohol tester, detector and breath tester available

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