The radiation counter is featured in Breakaway. It appears again, now in orange, in Earthbound. It is still orange in Technical in Mark Of Archanon, and is on the planet in The Immunity Syndrome. More in the Continuity Guide.
This close up of the above shot from Breakaway shows the electrical cables passing out of the spacesuit glove ring into the scanner.
This prop has additional Letraset markings indicating it was used in Medical Center.
Images copyright Martin Willey except for Space 1999 images (copyright ITV Studios Global Entertainment)
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