Temperature indicator built for the Gemini spacecraft, measuring 2˝ x 2.5˝ x 5˝, with the manufacturer's tag on top: "Indicator, Suit & Cabin Temp., Serial No. 101B US, Lear Siegler, Inc. for McDonnell, Per MAC SCD 52-81710-21, Model No. 2709G." The front indicator panel features dual meters labeled "Cabin" (with a range of 40°–200° F) and "Suit" (with a range of 40°–100° F), designed to monitor the temperature within the cabin of the Gemini spacecraft, as well as within the astronauts' suit. The port on the rear is labeled "J1." In fine condition.
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