Extech Instruments TP200 Type K Pipe Clamp Temperature Probe

Amazon

Spring loaded jaw for secure grip on pipe For use with any thermometer or multimeter with a type k thermocouple input Measurement range -4 to 200F (-20 to 93C) Accuracy: 3.6F (1.8C)

Test-meter.co.uk

Extech TP200 Type K pipe clamp temperature probe. Measures -20˚C to 93˚C on pipes 6.35-38mm. ±1.8˚C accuracy. Spring-loaded jaws. Compatible with Type K thermocouple inputs.