Apollo Lunar Module Servometric Indicator used to monitor the temperature of propellant for the Reaction Control System (RCS), measuring 2″ x 4″ x 4.5″, with a Honeywell tag on the back: "Indicator-Servometric, Mfr Part No. JG904A20, Series 5, Serial No. 124, Part No. LSC350-80177-15, Contract No. NAS 9-1100." The front indicator panel features a scale from 20-120°F, with dual meters labeled "A" and "B," identifying the two parallel, independent systems of the RCS. This indicator would have been situated toward the upper left corner of the LM instrument panel's right side, as part of a bank of three indicators monitoring the performance and status of the RCS. In fine condition.
