Humidity Indicator/"Eyeball" for SCUBA Compressor or Fill
TFM Engineering carries a variety of extremely useful valves for SCUBA compressor and high pressure breathing air applications (all are 1/4" NPT). They are anodised aluminium and are very light - but a ll are 400bar rated unless otherwise specified. Brass versions are often available by special order, as are other special valves, high pressure regulators, etc.Only one shipping fee is required for multiple valves. Moisture & CO indicator ("Eyeball") – a disc/element (not included) inside changes colour in the presence of moisture or carbon monoxide allowing you to get a better idea of your air quality than just smelling it, and much earlier warning it is time to change the filter. $ Humidity Element CO/Humidity Element $21 -