
The ST100 probe is compatible with LogTag® TREX, UTRED/UTRED30, and TRED30 models and measures temperatures from -40 °C to +99 °C (-40 °F to +210 °F). All probes are terminated with high-quality gold-plated MCX connectors and interchangeable industrial PTFE coaxial cables while maintaining the stated accuracy.

1. ST100S – 30mm, 5mm Tip Length
-40°C to +99°C (-40°F to +210°F)
This short-tip probe incorporates a ~22mm contact length of a 316 stainless steel probe with a 5mm outer diameter, handleless but with a small mold to improve moisture resistance and reduce cable stress.
All probe cable materials are FDA food-grade certified.
Standard (item number ST100S-15) is supplied in 1.5m (4'11”) lengths or extended (item number ST100S-30) lengths of 3m (9'10”).

2. ST100K – 65mm Tip Length, 3.2mm Outer Diameter
-40°C to +99°C (-40°F to +210°F)
This medium-tipped probe incorporates a ~65mm contact length of a 316 stainless steel probe with a 3.2mm outer diameter.
All materials at the probe tip are FDA food-grade, including the cable.
Supplied as standard (item number ST100K-15) with a 1.5m (4'11”) cable or a longer cable (item number ST100K-30) with a 3m (9'10”) cable connected to an MCX plug.

3. ST100L – 90mm Tip Length, 3.2mm Outer Diameter
-40°C to +99°C (-40°F to +210°F)
This long-tip probe incorporates a 90mm contact length of a 316 stainless steel probe with a 3.2mm outer diameter.
All probe tip materials are FDA food-grade, including the cable.
Supplied as standard (item number ST100L-15) with a 1.5m (4'11”) cable or a longer cable (item number ST100L-30) with a 3m (9'10”) cable connected to an MCX plug.

4. ST100J – Tip Length 50mm, ⌀3.2mm
-40 °C to +99 °C (-40 °F to +210 °F)
This short-tip probe incorporates a ~40mm contact length of a 316 stainless steel probe with a 3.2mm outer diameter, without a handle but with a small mold to improve moisture resistance and reduce cable stress.
All probe cable materials are FDA food-grade certified.
Standard (model number ST100J-15) is supplied in 1.5m (4'11”) lengths or extended (model number ST100J-30) in 3m (9'10”) lengths.

5. ST100T – 140mm Tip Length, 5mm Outer Diameter
-40°C to +99°C (-40°F to +210°F)
This medium-tipped probe incorporates a contact length of approximately 130mm of a 316 stainless steel probe with a 5mm outer diameter.
All probe cable materials are FDA food-grade certified.
Supplied as standard (item number ST100T-15) with a 1.5m (4'11”) cable or a longer cable (item number ST100T-30) with a 3m (9'10”) cable connected to an MCX plug.

6. ST100H – With 105mm long handle, 5mm diameter
-40°C to +99°C (-40°F to +210°F)
The probe features a 70mm long molded handle with a length of approximately 105mm and a diameter of 5mm (slightly larger than 3/16”), made of 316 stainless steel.
All materials at the probe tip are FDA food-grade.
Supplied as standard (item number ST100H-15) with a 1.5m (4'11”) cable or extended (item number ST100H-30) with a 3.0m (9'10”) cable connected to an MCX plug.