Figaro TGS 2600 Air Quality Sensor


The sensing element is comprised of a metal oxide semiconductor layer formed on an alumina substrate of a sensing chip together with an integrated heater. In the presence of a detectable gas, the sensor’s conductivity increases depending on the gas concentration in the air.

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A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration. The TGS 2600 has a high sensitivity to low concentrations of gaseous air contaminants such as hydrogen and carbon monoxide which exist in cigarette smoke. The sensor can detect hydrogen at a level of several ppm. Due to the miniaturization of the sensing chip, TGS 2600 requires a heater current of only 42mA and the device is housed in a standard TO-5 package
Low power consumption
High sensitivity to gaseous air contaminants
Long life and low cost
Uses a simple electrical circuit

Product Name Figaro TGS 2600 Air Quality Sensor
Input Voltage (V) 5.0±0.2V AC/DC
Load Resistance variable 0.45kΩ min.
Heater Resistance (Ω) approx 83Ω at room temp.
Heater current (mA) 42±4mA
Heater power consumption (mW) 210
Sensor Resistance (kΩ) 10kΩ ~ 90kΩ in air
Sensitivity (change ratio of Rs) 0.3~0.6 Rs (10ppm of H2)/ Rs air


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