Thermometer, Non-Mercury, 10/30 joint

This thermometer is mineral spirit filled to eliminate the workplace and environmental hazards of mercury. It has a white back and a 6 to 7 mm outer diameter with 1 degree subdivision and a standard taper 10/30 inner ground joint. Immersion is measured from the bottom of the joint to the bottom of the mercury bulb,.  Available in 4 immersion depths and 2 temperature ranges.