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O2-G2 Oxygen Sensors (O2)

Updated:2025-03-13

Brand: Alphasense
Model: O2-G2
Description: Oxygen makes up 21% of the atmosphere by volume. This is halfway between 17% (below which breathing for unacclimatised people becomes difficult) and 25% (above which many organic compounds are highly
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O2-G2 Oxygen Sensors (O2) Description：

Specification Summary

Oxygen makes up 21% of the atmosphere by volume. This is halfway between 17% (below which breathing for unacclimatised people becomes difficult) and 25% (above which many organic compounds are highly flammable). The element and its compounds make up 49.2% by mass of the Earth’s crust, and about two-thirds of the human body.

Our O2 sensors are available in three sizes:

A: 20mm diameter, the industry-standard size for portable gas detectors

C: 20mm diameter, extra height allows additional filter material when measuring combustion gases

G: Miniature, proven long-term performance.

File Description	Type	Download
O2-G2 Low profile, 2 year	Data Sheets	Download
O2-G1 Low profile, 1 year	Data Sheets	Download
O2-C2 Combustion, 2 year	Data Sheets	Download
O2-A3 Small, 3 year	Data Sheets	Download
O2-A2 Small, 2 year	Data Sheets	Download
O2-A1 Small, 1 year	Data Sheets	Download
LFO2-A4 Lead Free, long life	Data Sheets	Download