SIZE: APPROX. 32 X 22 X 27MMMAIN CHIP: LM393, ZYMQ-3 GAS DETECTORWORKING VOLTAGE: DC 5VWITH SIGNAL OUTPUT INSTRUCTIONSTWO-WAY SIGNAL OUTPUT (TTL LEVEL OUTPUT AND ANALOG OUTPUT)TTL OUTPUT EFFECTIVELY SIGNAL FOR LOW LEVEL(WHEN THE OUTPUT LOW LEVEL SIGNALLIGHTS, CAN DIRECTLY CONNECTED MICROCOMPUTER)ANALOG OUTPUT 0 ~ 5V VOLTAGE, THE HIGHER THE CONCENTRATION, THE HIGHER THE VOLTAGEHAS A HIGH SENSITIVITY AND GOOD SELECTIVITYHAS LONG SERVICE LIFE AND RELIABLE STABILITY RAPID RESPONSE RECOVERY FEATURESFOR MOTOR VEHICLES AND OTHER PROHIBITION DRUNKEN DRIVERS HOMEWORK PERSONNEL ON-SITE TESTING, ALSO USED IN OTHER PLACES OF ETHANOL VAPOR DETECTIONCOLOR IS SHOWN AS PICTURESPLS NOTE THAT DUE TO LIGHTING EFFECTS, MONITOR'S BRIGHTNESS/ CONTRASS SETTINGS ECT, THERE COULD BE SOME SLIGHT DIFFERENCES IN THE COLOR TONE OF THE PICTURES AND THE ACTUAL ITEM!
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