General Lab Thermometers

Gilson General Lab Thermometers are Liquid-in Glass (LiG) and meet Scientific Apparatus Makers Association (SAMA) standards. They are available in mercury- and non-mercury-filled models, with partial or total immersion and a variety of °C and °F temperature ranges to choose from.

Please check your state and local ordinances controlling mercury instruments before ordering.  Regulations are constantly changing and Gilson may not be permitted to ship these devices to you.


  • Mercury Thermometers use traditional mercury as an indicating fluid.
  • Non-Mercury Thermometers are filled with an environmentally safe, nonhazardous liquid.
  • Mercury-Filled Armored Thermometers are housed in a removable brass case that provides protection from breaking and spilling of hazardous mercury.
  • Non-Mercury Armored Thermometers are red spirit-filled with a rugged, removable brass case that protects the thermometer from breakage.