General Purpose Probes
We sell Type T thermocouple microprobes from Physitemp Instruments, Inc. These are amongst the very best of Type T probes available, and a must when taking precise temperature measurements.
The time constant is defined as the time the sensor takes to reach 63% of the final reading. The response is an exponential function it would normally take 5 – 10 x constants to reach final reading depending on the resolution.
ESO-1 - Esophageal probe. Flexible vinyl covered 1/8" dia. Max. Temp. 90° C. Time constant 5.0 secs. 5 ft. lead. Isolated.
SST-2 - Skin surface probe, to be taped on. 1/4" dia. 10 Kt. gold sensor disc, 5 ft. lead. Max. Temp. 90°C. Time constant 0.15 secs. with plastic handle. Isolated.
OT-1 - For fast reading oral use. Ball-tipped stainless steel shaft, stainless handle. 5 ft. lead. Max. Temp. 125°C. Time constant 0.8 secs. Not Isolated.
HT-1 - "Workhorse" probe for liquids, gases, semi-solids. Plastic handle with straight stainless steel shaft. Not good for surface temps. Max. Temp. 400°C. Time constant 0.5 secs. 5 ft. lead. Not Isolated.