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.
HT-2 - As HT-1 but with 9" shaft.
BT-1 - For surface temperatures of solids, also for liquids, gases and semi-solids. Probably the best general purpose probe. Welded stainless steel shaft, plastic handle. Tip is .02" diameter bent at right angle to facilitate accurate surface measurement. 5 ft. lead. Immersible. Max. Tip Temp. 240°C. Time constant 0.15 secs. Not Isolated.
DPT Series- Immersion probes for liquids. #304 stainless steel welded shaft, wooden handle. 5 ft. lead. Max. Temp. 400°C (750°F). Time constant 2 secs. Not Isolated.
PT-6 - Sensor Six-Pack. For multi-point measurements. Inexpensive, flexible, welded sensor beads, tough Kapton insulation, 5 ft. leads. Max. Temp. 400° C. Time constant 0.01 seconds. Not Isolated.