Ideal for digital pyrometers, these "K" type thermocouples are enclosed in an flexible metal braid which offers superior heat protection up to 2000 degrees F. Available clamp sizes are 2-13/16" - 3-3/4" and 3-9/16" - 4-1/2" or optional 1/8" and 1/4" NPT connectors. Comes standard with a 20 Gauge, 6 foot lead.