Pipe Thermometers check pipe surface temperatures.
Press Release Summary:

Original Press Release:
The Supply Corporation Offers Abrax Pipe Thermometers For Easy Reading Of Pipe Surface Temperatures
The Supply Corporation is pleased to offer Abrax Pipe Thermometers for easy reading of pipe surface temperatures. These thermometers attach easily to steam, water, refrigeration, gas, and other pipes with a spiral spring clamp in just seconds. Abrax Pipe Thermometers are bi- metallic, precalibrated, and can easily be attached or removed and require no alteration or drilling of the pipes. Featuring a 2 1/2" dial, these thermometers will fit pipes up to 3 1/2" diameter and are available in two temperature ranges: 70 to 370°F or -50 to 250°F.