Pulse Sensor Module (per m/s MAX30102)

Description

Sensor MQ-135 belongs to semiconductor devices. The operating principle of the sensor is based on a change in the resistance of a thin film layer of tin dioxide SnO2 upon contact with molecules of the gas being detected. The sensitive element of the sensor consists of a ceramic tube coated with Al2O3 and a sensitive layer of tin dioxide applied to it. Sensitivity to different gases is achieved by varying the composition of impurities in the sensitive layer.

Specifications:

• Technology Type: Semiconductor
• Detected gas type: carbon monoxide CO, alcohol vapor, gasoline, alcohol, etc..
• Response time: 10 with
• Recovery time: 30 with
• Heater power: 900 mW
• Operating temperature -10…50 °C
• Supply voltage: 5 Volt
• Output signal High/Low and analog
• Comparator used: LM393