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Model Number : MQ-7B
Place of Origin : CN
MOQ : 1
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability : 5000pcs
Delivery Time : 3-5work days
Packaging Details : Paper box
Model : MQ-7B
Sensor Type : Semiconductor
Standard Encapsulation : Plastic cap
Target Gas : carbon monoxide
Detection range : 10~500ppm CO
Loop Voltage : 5.0V±0.1V DC
MQ-7B Carbon Monoxide Gas Sensor
Model | MQ-7B | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Plastic cap | ||
Target Gas | carbon monoxide | ||
Detection range | 10~500ppm CO | ||
Standard Circuit Conditions | Loop Voltage | Vc | 5.0V±0.1V DC |
Heater Voltage | VH | 5.0V±0.1V AC or DC(High temp.) 1.5V±0.1V AC or DC(Low temp.) | |
Heater Time | TL | 60 S±1S(High temp.) 90 S±1S(Low temp.) | |
Load Resistance | RL | Adjustable | |
Sensor character under standard test conditions | Heater Resistance | RH | 30Ω±3Ω (room temp.) |
Heater consumption | PH | ≤950mW | |
Sensitivity | S | Rs(in air)/Rs(in 150ppm CO)≥5 | |
Output Voltage | Vs | 2.5V~4.3V (in 150ppm CO) | |
Concentration Slope | α | ≤0.6(R300ppm/R50ppmCO) | |
Standard test conditions | Tem. Humidity | 20℃±2℃;55%±5%RH | |
Standard test circuit | Vc:5.0V±0.1V; VH (High temp.): 5.0V±0.1V VH (Low temp.): 1.5V±0.1V | ||
Preheat time | Not less than 48 hours | ||
O2 content | 21%(not less than 18%) O2 concentration effects initial value, sensitivity and repeatability. | ||
Preheat time | Over 48 hours | ||
Lifespan | 10years |
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Professional MQ-7B Carbon Monoxide Gas Sensor for Industrial Applications Images |