Figaro Engineering TGS3870-F00 Methane/Carbon Monoxide Sensor - MOS Micro-Bead
The Figaro Engineering TGS3870-F00 is a micro-bead MOS semiconductor gas sensor designed for dual detection of methane and carbon monoxide. It operates on a 5V DC pulsed heater voltage and is suitable for integration into consumer gas alarms and portable air quality monitors.
Features
- Dual-gas detection of methane (CH4) and carbon monoxide (CO) with a single sensor element.
- Micro-bead sensing structure enables low average heater power consumption of only 38mW.
- High selectivity with low sensitivity to interfering alcohol vapors for reliable residential use.
- Operates with a 5.0V ±0.2V DC pulsed circuit voltage and variable load resistance (> 0.75kΩ).
- Durable plastic base and metal can construction ensures long operational life.
Out of stock
The TGS3870-F00 utilizes a metal oxide semiconductor (MOS) micro-bead sensing element. By periodically applying two different heater voltages (high and low), the sensor can selectively detect both methane and carbon monoxide concentrations. This intelligent cycling allows for discrimination between the two target gases while minimizing response to common interferents like ethanol.
Designed for the consumer market, the sensor offers a robust and cost-effective solution for gas leak detection. Its miniature size and low power consumption make it ideal for integration into battery-operated or mains-powered gas alarm units. The sensor provides a resistive output that varies with gas concentration, requiring an external load resistor and signal conditioning circuit for microcontroller or logic-level interfacing.
Additional Information
| Weight | 0.02 kg |
|---|---|
| Dimensions | 9 × 7 × 2 cm |












