Protect health of people by Figaro sensors

Gases like hydrogen sulfide and ammonia are dangerous gases, which however can be easily detected.
This is an archive article published 03/20/2012. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

Hydrogen sulfide and ammonia are relatively common gases arising at an organic material decay, in sewage conduits, poultry farms, and in a technological process of many industrial segments. Despite of the fact, that both gases are irritative and feature a pungent smell, intoxications by these gases aren´t rare. Risk is also increased by a fact, that already after a short exposition to these gases, they subjectively appear to be much less concentrated.

For a production of devices detecting these gases are suitable Figaro sensors TGS8xx series. TGS825 is sensitive to hydrogen sulfide already from 5 ppm concentration. TGS826 is sensitive to ammonia, as well as ethanol, iso-butane and hydrogen. TGS826 is able to detect ammonia already from 30 ppm concentration, that´s why it is suitable for all critical safety-related applications in refrigeration systems and in agriculture. Both sensors use SnO2 based semiconductor sensors featuring high sensitivity and a long lifetime. Sensors are made on a ceramic base resistant to severe environment.

Protect health of people by Figaro sensors

Usage of both sensors is further facilitated by the SR-2 socket. SR-2 is usable for all Figaro sensors TGS8xx series and it enables a troublefree exchange without a necessity of relatively demanding desoldering from a PCB.

Figaro sensors feature a long lifetime, high sensitivity and selectivity to target gases. Despite a long lifetime, in an environment with a high dust nuisance or an aggressive environment, it can be necessary to exchange a sensor after some time. This is also the case of applications where highest reliability and accuracy is required. An easy sensor exchange is also welcome at development or at the change of a sensor type. SR-2 socket, with an over 1000 MOhm insulation resistance and 700V AC insulation strength, is suitable for all applications. Producer also guarantees lifetime of at least 150 insertion cycles (exchanges of a sensor).

Detailed information will provide you the TGS825, TGS826 and SR-2.
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Advantages/ Features:

  • high sensitivity to target gases
  • long lifetime
  • resistant to severe environment

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Additional products


Ord.number: 7719

in stock 139 pcs

TGS 822

Gas Sensors

Organic Solvent Vapor Sensor 50 to 5000ppm

1 pcs+ 10,90 €

2 pcs+ 10,60 €

5 pcs+ 9,97 €

35 pcs+ 8,92 €

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Ord.number: 53106

in stock 0 pcs
Currently in stock 20 pcs
Reserved for customers 20 pcs
Currently available 0 pcs
If you are interested in bigger quantity that is currently available in stock, please contact our sales assistant or click on Get Quote.

Alternative components:



TGS 826-A00

Gas Sensors

Ammonia (NH3) Gas Sensor 30 to 300ppm

1 pcs+ 8,33 €

2 pcs+ 7,75 €

10 pcs+ 7,10 €

50 pcs+ 6,44 €

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Ord.number: 53105

TGS 821

Gas Sensors

Hydrogen (H2) Gas Sensor 10 to 4000ppm

No longer available

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Ord.number: 110904

in stock 10 pcs


Other Sockets

Standard sensor socket for TGS8xx 6p

1 pcs+ 2,24 €

2 pcs+ 2,16 €

10 pcs+ 1,93 €

50 pcs+ 1,74 €

200 pcs+ 1,62 €

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