The Mares XR SPG52 O2 is an Oxygen clean compact supmersible pressure gauge with a 52mm face, tempered glass and brass body for your stage cylinder. Tough and chuncky you can clip this gauge off and forget about it until you need it.
Tempered glass face and double chromed, mirror-plated brass case protect the internal copper beryllium bourdon tube that never goes out of calibration even with hard knocks.
The uniform gauge is clear and even with colour coded sections for a quick and easy read. The card is luminescent so it will glow in the dark after a light charges it.
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