Product Images are shown for illustrative purposes only and may differ from actual product.

MQ138 Formaldehyde Gas Detection Sensor Module

  • Stock: 3

    Availability: InStock priceValidUntil: 2026-10-13

  • Brand: Generic
  • SKU: 1822 | DAB105

Availability: InStock priceValidUntil: 2026-10-13

  • Rs. 1,383.03 (inc GST)
    Rs.1,172.06 + GST

    Qty :

GST Invoice: Available for all purchases; eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

MQ138 Formaldehyde Gas Detection Sensor Module

MQ138 Sensor for formaldehyde detection, 1-10 ppm range, compatible with Arduino and Raspberry Pi.

The MQ138 Formaldehyde Gas Detection Sensor Module is designed for precise monitoring of formaldehyde gas concentrations in various environments. This sensor detects formaldehyde in the range of 1 to 10 ppm, making it ideal for indoor air quality assessments. Its dual output enables easy interfacing with microcontrollers like Arduino and Raspberry Pi, enhancing versatility in applications. The MQ138 is suitable for detecting other volatile organic compounds as well, such as alcohols and ketones, providing comprehensive air quality monitoring. With the MQ138 Formaldehyde Gas Detection Sensor Module, ensure a safer and healthier living space by accurately measuring harmful gas levels in real-time.

Explore the precision of GAS and Air Quality Sensors with the MQ138 from DNA. This sensor enhances air quality monitoring. Check other GAS and Air Quality Sensor that we have in stock.

At DNA, we cater to all your electronic component needs. If you need specific parts or can't find what you're looking for, feel free to reach out. We can import items for you and support both retail and bulk orders. Check out related items like Humidity & Temperature Sensors, Connectors, or Power Supplies. Contact Us.

Features of MQ138 Formaldehyde Gas Detection Sensor Module

  • Digital and analog output
  • Detects formaldehyde from 1 to 10 ppm
  • Compatible with Arduino and Raspberry Pi
  • Detects multiple volatile compounds.

Specification of MQ138 Formaldehyde Gas Detection Sensor Module

  • Detection range: 1-10 ppm
  • Operating voltage: 5V
  • Output type: Digital and analog

Applications of MQ138 Formaldehyde Gas Detection Sensor Module

  • Indoor air quality monitoring
  • Environmental testing
  • Safety in laboratories
  • HVAC systems
  • Home automation.

Related Links for MQ138 Formaldehyde Gas Detection Sensor Module

Package Includes

  • 1 X MQ138 Formaldehyde Gas Detection Sensor Module.
Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (2)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
What if tracking shows “delivered” but I didn’t receive it?
Message us immediately. Send: order number + tracking number + delivery address confirmation. We’ll coordinate with the courier and guide next steps.
What payment methods do you accept?
We accept UPI, cards, netbanking, and other checkout options shown on the payment page.
Can you share a proforma invoice / quotation before I pay?
Yes — we can share a quotation/proforma invoice. Send: part number(s), quantity, your GSTIN (if applicable), billing name/address, and delivery PIN code.
If I order the same parts again later, will they match?
We try to maintain consistency, but supply can change. If matching lot/brand matters, tell us in advance and we’ll advise what’s available.

NEW Products

Product Page : New Products

Hongfa HF32F/005-ZS3 Relay

Hongfa HF32F/005-ZS3 Miniature Power RelayHF32F/005-ZS3 Relay for low-power control; SPDT configurat..

Rs.52.04 (inc GST)
Rs.44.10 + GST

SKU: 9983 | DAI775
Stock: 30

4 Pin 2.0mm JST PH Straight Male Relimate Connector

Relimate Connector 4 Pin JST Male Through Hole Connector 4 Pin JST PH Male Connector designed for r..

Rs.4.13 (inc GST)
Rs.3.50 + GST

SKU: 2863 | DAE555
Stock: 48

Nextion Intelligent NX8048P070-011C 7" Touchscreen Display

Nextion Intelligent Series 7" Capacitive Touch HMI Display NX8048P070-011C is a 7" capacitive touch..

Rs.9,759.78 (inc GST)
Rs.8,271.00 + GST

SKU: 2125 | DAB504
Stock: 20

2 Pin Female Right Angle Screwable Plug 7.62mm (Combicon Connector)

Combicon 2 Pin Right Angle Screwable Plug Connector XY-2500 7.62mm 2 Pin Right Angle female plug wi..

Rs.15.93 (inc GST)
Rs.13.50 + GST

SKU: 3038 | DAE798
Stock: 5

Have You Seen

Product Page : Have You Seen

BC547 NPN TRANSISTORS

BC547 NPN Transistor BC547 NPN Transistor for switching and amplification with high current gain an..

Rs.2.00 (inc GST)
Rs.1.69 + GST

SKU: 119 | DAA381
Stock: 20

Keltron Supercapacitor 20 Farad 2.7 Volts EDLC Energy Storage

Keltron Supercapacitor 20 Farad 2.7 Volts Energy Storage Keltron 20F 2.7V Supercapacitor offers rap..

Rs.130.98 (inc GST)
Rs.111.00 + GST

SKU: 10256 | DAJ140
Stock: 10

ABS 80x160x55 mm IP65 Enclosure

ABS 80x160x55 mm IP65 Waterproof Enclosure -ABS-801655 IP65 Cabinet for mounting electronic circuit..

Rs.355.18 (inc GST)
Rs.301.00 + GST

SKU: 2805 | DAE387
Stock: 10

IRFB4332 POWER MOSFET (N Channel)

IRFB4332 N Channel Power MOSFET for PDP Applications IRFB4332 N-Channel MOSFET, 250V, 60A, 0.033 ohm..

Rs.239.54 (inc GST)
Rs.203.00 + GST

SKU: 3691 | DAF011
Stock: 30

Related Products

MCP2515 CAN CONTROLLER

MCP2515 CAN CONTROLLER

Microchip MCP2515 Stand-Alone CAN ControllerMCP2515 CAN Controller with SPI Interface capable of fil..

Rs.200.60 (inc GST)
Rs.170.00 + GST

SKU: 334 | DAA055
Stock: 2
MQ8 Hydrogen Gas Sensor Module for Detection

MQ8 Hydrogen Gas Sensor Module for Detection

MQ8 Hydrogen Gas Sensor Module for DetectionMQ8 Hydrogen Gas Sensor Module for H2 Alarm Detection wi..

Rs.174.64 (inc GST)
Rs.148.00 + GST

SKU: 1816 | DAB414
Stock: 5
SEN-HZG1WA 1"  Brass Water Flow Sensor

SEN-HZG1WA 1" Brass Water Flow Sensor

SEN-HZG1WA Brass Water Flow Sensor 1" SEN-HZG1WA Brass Water Flow Sensor for measuring water flow r..

Rs.995.63 (inc GST)
Rs.843.75 + GST

SKU: 2056 | DAB264
Stock: 3
CD4051BM96 Single 8ch Analog CMOS Multiplexer/Demultiplexer IC

CD4051BM96 Single 8ch Analog CMOS Multiplexer/Demultiplexer IC

CD4051BM96 8-Channel Analog Multiplexer/Demultiplexer IC CD4051BM96 8ch Analog Multiplexer/Demultipl..

Rs.37.76 (inc GST)
Rs.32.00 + GST

SKU: 7872 | DAD962
Stock: 0