Description: The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor, suitable for detecting CO concentrations in the air. It can sense CO gas in the range of 20 to 2000 ppm. The MQ7 features high sensitivity to carbon monoxide, good stability, and a long lifespan. Specifications:
Circuit Voltage: 5V ±0.1 Heating Voltage (High): 5V ±0.1 Heating Voltage (Low): 1.4V ±0.1 Load Resistance: Adjustable Heating Resistance: 33Ω ±5% Heating Time (High): 60 ±1 seconds Heating Time (Low): 90 ±1 seconds Heating Consumption: Approximately 350mW Operating Temperature: -20°C to 50°C Storage Temperature: -20°C to 50°C Relative Humidity: < 95% RH Oxygen Concentration: 21% (standard condition) Note: Oxygen concentration can affect sensitivity characteristics.
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