Plastic shell submarine thermometer (JWS)

Plastic shell submarine thermometer, Straight form or 90°angle form ?White V-shaped aluminum scale panel. ?Gray Thermoplastic Resin shuck ?Glass face (window) to exclude dirt and dust ?Triangle red reading liquid filled tube ?Lower part: Fixed connected with thread, made in copper, length: 43mm～100mm ?Connect pipe thread: 3/4＂、1/2＂。 ?Dual scale extent of survey: -40°C～200°C/-40°F～400°F。