Sell tree MQ-7 Carbon Monoxide Combustible Gas Detection Sensor Fire Alarm Module best price

#MQ-7 #Carbon #Monoxide #Combustible #Gas #Detection #Sensor #Fire #Alarm #Module MQ-7 Carbon Monoxide Combustible Gas Detection Sensor Fire Alarm Module 100% Brand new and high quality MQ-7 sensor description: The MQ-7 gas sensor is a sensitive material used in clean air, low conductivity of tin dioxide (SnO2). Low temperature cycle detection method (1.5V heating) detects carbon monoxide, the conductivity of the air sensor increases with increasing carbon monoxide gas concentration, high temperature (5.0V heating) low temperature diffuse gas adsorption cleaning. With a simple circuit, the conductivity can be changed, the gas concentration is converted to the corresponding output signal. MQ-7 high sensitivity carbon monoxide gas sensor, this sensor can detect various gases containing carbon monoxide, it is a sensor for various applications. Technical Parameters: 1. Heating voltage: 5±0.2V (AC·DC) 2. Working current: 140mA 3. Circuit voltage: 10V (maximum DC 15V) 4. Load resistance: 10K (adjustable) 5. Detection concentration range: 10-1000ppm 6. Voltage in clean air: ≤1.5V 7. Sensitivity: ≥3% 8. Response time: ≤1S (preheating for 3-5 minutes) 9. Response time: ≤30S 10. Component power consumption: ≤0.7W 11. Working temperature: -10~50℃ (nominal temperature 20℃) 12. Working humidity: 95%RH (nominal humidity 65%RH) 13. Service life: 5 years 14. Dimensions: 35mm×22mm×18mm / 0.1148293965*0.0721784778*0.0590551182 inch Package Included:1 pcs *MQ-7 module (other accessories demo in the picture is not included.) Notes:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you did. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!