Figaro TGS3870 Methane/Carbon Monoxide Sensor


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SKU: 1468928
  1. Product: Figaro TGS3870 Methane/Carbon Monoxide Sensor
  2. Circuit Voltage: 5.0±0.2V DC pulse
  3. Load Resistance: variable (>0.75kΩ)
  4. Sensing Principle: MOS type
  5. Sensor Resistance:  0.3kΩ~5.0kΩ in 3000ppm methane ,2kΩ~40kΩ in 200ppm CO



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Category: Gas and Dust Sensor

TGS 3870-F00 is a micro-bead type semiconductor gas sensor for the detection of both methane and carbon monoxide. Using a micro-bead gas sensing structure, both methane and carbon monoxide can be detected with a single sensor element by periodic application of two different heater voltages (high and low). Miniaturization of the gas sensing bead results in a heater power consumption of only 38mW (average).

TGS 3870-F00 has low sensitivity to alcohol vapors (a typical interference gas in the residential environment) and has high durability, making the sensor ideal for consumer market gas alarms.

Note: For more technical details go through Datasheet in the attachment section


  1.  Miniature size and low power consumption
  2.  High sensitivity and selectivity to both
    methane and carbon monoxide (CO)
  3.  Low sensitivity to alcohol vapor
  4.  Long life and low cost

Package Includes:

1 x Figaro TGS3870 Methane/Carbon Monoxide Sensor

SKU: 1468928 Category:
Model No.


Circuit Voltage

5.0±0.2V DC pulse

Load Resistance

variable (>0.75kΩ)

Sensing Principle

MOS type

Sensor Resistance

0.3kΩ~5.0kΩ in 3000ppm methane 2kΩ~40kΩ in 200ppm CO

Standard Package

Plastic base and metal can

Target Gases

Methane and Carbon Monoxide

Test Gas Conditions

Target gas in air at 20±2˚C, 65±5%RH

Shipping Weight 0.002 kg
Shipping Dimensions 9 × 7 × 2 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China