Laboratory glass thermometer in original cardboard tube case. TL-15 (USSR, 1976). Length: 39 cm.
Total immersion laboratory liquid low-temperature thermometer.
Marking: "4-1976 г. ГОСТ 9177-59 ТЛ-15" with manufacturer's mark.
Measurement Range: From −100 °C to +20 °C.
Scale Division: 1 °C.
Thermometric Liquid: Petroleum ether / organic filling (non-mercury, designed for ultra-low temperatures).
Enclosed milk-glass scale plate with clear graduations, enclosed in a protective glass outer sheath with a capillary tube.
Precise low-temperature measurements in physics and chemistry laboratories, refrigeration, and cryogenic systems.
Thermometer and original protective cardboard tube case.
Excellent preserved condition, clear scale, undamaged body.
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