Nelson-Jameson blue spirit-filled "ACCU-SAFE" thermometers are filled with an environmentally safe liquid and dye which eliminate the hazards of mercury in case of breakage. Each thermometer is individually serializedand a certificate is supplied to its accuracy. The thermometers are permanently marked and have a blue liquid against a white background for easy reading.
• Non-toxic liquid.
• Blue liquid, white background for easy reading.
• Certificate of Accuracy included with each thermometer.
• Permanent scales.
• Several ranges and divisions to choose from.