The Extech TP400 high temperature Type K pipe clamp provides hands-free superheat/subcooling temperature measurement to 450°F (232°C). The spring-loaded Teflon ® jaws securely grip pipes from 0.25" (6.35mm) to 1.5" (38mm) in diameter. The TP400 can be used with any thermometer or multimeter with a type K thermocouple input and comes complete with attached 36" (0.9m) cable and type K connector.