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€
Price :
3.4€
Product SKU: 37674
Description: The main chip: LM393, MQ-3 gas sensor Operating voltage: DC3-5V Response time: ≤10s (70% Response) Recovery time: ≤30s (70% Response) Heating resistance: 31Ω±3Ω Heating Current: & Le; 180MA Heating Voltage: 5V 0.2V Heating Power: & Le; 900MW Detect Voltage: & Le; 15V Ambient Temperature: -10 -20 ℃ -70 ℃, humidity: & le; 70%Rh features: Signal output instructions; Dual Signal Output (Analog Output, and TTL Level Output); TTL Output Valid Signal is low, can be connected directly to the microcontroller; 0 ~ 5V Analog Output Voltage, The Higher the Concentration the Higher the Voltage; Has a high sensitivity and good selectivity to ethanol vapor; Has a long life and reliable stability; Rapid Response Recovery Characteristics; Applications: For Motor Vehicle Drivers and Other Non-Drinking and Operating Personnel on-Site Testing, Also Used in Other Places of Ethanol Vapor Detection, Detection of Alcohol: Detection Range of 10 to 1000PPMPMPMPM
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