Use the LN₂ measuring rod to clearly show the liquid level in a cryogenic freezer. The liquid level in the dewar can be determined by measuring with a dipstick. Insert the dipstick straight into the container so that it always rests on the bottom of the unit. After 5 or 10 seconds, withdraw the dipstick and wave it back and forth in the air. A frosted section will form representing the depth of liquid in the container.

• Calibrated in centimeters and inches.

• Measures Up to 36” or 48" depth.

• Low thermal conductivity.