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[Discontinued] MQ-138 Formaldehyde Aldehydes Gas Detection Sensor
Brand: SainSmart SKU: 101-60-125

[Discontinued] MQ-138 Formaldehyde Aldehydes Gas Detection Sensor

SKU: 101-60-125 Variants ID: 32226579873871
$19.99 $29.99
Save $10.00
  

Description:

For the family, the environment of the volatile compounds detection devices, suitable aldehydes, alcohols, ketones, aromatic compounds detected, the gas sensor test concentration range:

  • 1 to 100ppm benzene
  • Toluene 10 to 100ppm
  • Methanol 5 to 100ppm
  • Alcohol 30 to 300ppm
  • Acetone 10 to 300ppm
  • Formaldehyde 1 to 10ppm

Provide a reference routines, circuit diagrams and Other relative information.

Specification:

  • Size: 32mm x 22mm x 30mm
  • Main chip: LM393, formaldehyde-sensing probe
  • Working voltage: DC 5V

Characteristics:

  1. with the signal output LED indication;
  2. 2-way signal output (analog output, and TTL-level output);
  3. TTL output valid signal is low; (low output signal light, which can be accessed microcontroller IO port)
  4. analog output increases with the concentration, the higher the voltage the higher the concentration;
  5. aldehydes, alcohols, ketones, aromatic compounds with high sensitivity;
  6. with a long life and reliable stability;
  7. Fast response characteristics;
  8. with mounting holes for easy permanent installation;
  9. the probe can plug design for easy testing.

Package Include:

  • 1x MQ138 Formaldehyde Aldehydes gas detection sensor