Alcohol Gas Sensor DC 5V MQ-3 With signal output Instructions Breathing gas detection plane in the colors blue and orange ethanol alcohol vapor detection

Variant: 1x Set
Sale price£5.00

Tax included

Large design: This alcohol gas sensor module uses a double-sided circuit board design, with a power display and TTL signal output display, with a-do-count signal output and analog output AO.
Issue of a valid signal: If the output is low, the signal lamp lights up. It can be connected directly to the MCU or the relay module.
Quick response: Highly sensitive alcohol-ethanol gas detector with quick contact and recreation properties contains four screw holes for easy positioning.
VERSATILE USE: can be used wherever the detection of ethanol vapour is desired.

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Azdelivery two-way signal output Ethanol sensor has high sensitivity and good selectivity. This all -round module with quick response has a long lifespan and reliable stability.

Electrical Properties:

  • Input voltage: DC5V
  • Performance consumption (electricity): 150mA
  • DO output: TTL Digital 0 and 1 (0.1 and 3.3 V)
  • AO output: 0.1 - 0.3V, the highest concentration voltage is about 4V

Technical specifications

Model: MQ-3
Detecting gas: Alcohol steam
Disturbance concentration: 0.04 - 4 mg/l alcohol
Standard circuit circuit condition: Loop voltage VC 24DC
Heating voltage: VH 5.0 ± 0.2 V AC/DC
Load resistance: RL adjustable
Properties of the alley: Heating resistance 31 Ω ± 3 Ω
Performance consumption heating: 90 MW
Sensitive resistance: 2kΩ - 20kΩ (in 0.4 mg/l alcohol)
Sensitivity: Rs (in air) / RS (0.4 mg / l alcohol) 5
Concentration gradients: 0.6 (R300ppm/R100ppm alcohol)
Standard test conditions: 20 ± 2; 65% ± 5% RH
Standard test circuit: 5.0 V ± 0.1 V
Warm -up time: 48 hours
Size: 32 × 22 × 27 mm

Most important features

Special alcohol module with LM393, ZymQ-3 main chip gas detection sensor has analog output voltage. The higher the voltage, the higher the concentration. Fast reaction and recreational properties.

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