HiTemp140-PT Temperature Data Logger with a 12" Flexible Probe, 1" Piercing Tip and Keyring End Cap
Submersible temperature recorder, it can operate at up to 140 ° C (284 ° F) and has an accuracy of +/- 0.1 ° C (0.18 ° F). Includes a flexible 24 "stainless steel probe to measure temperatures from -200 ° C ~ 260 ° C (500 ° F), memory for 32,700 measurements. It records readings with date and time, and has a non-volatile solid state memory that will retain data even if the battery becomes discharged.