UEi Test Instruments ATTPC3 Pipe Clamp Probe Fits 1/4 to 1 1/2 pipes Compact and easy to use with improved strain relief at the handle and input jack Temperature range: -40 to 250f (-40 to 121c) Fits 1/4 to 1 1/2 pipes Temperature range:  -40 to 250F (-40 to 121C) Compact and easy to use Clamp style adapter for use with K-Type inputs Improved strain relief at the handle Improved strain relief at the input jack Rugged contacts with a large surface area DT301 DT304 DL379 DL389 C125 C127 C155 C157