Stainless Steel Thermistor Probe


TSSP‑1™ is a stainless steel thermistor probe used to measure soil temperature, liquid temperature, or surface temperature. The sensing element is a swaged stainless steel shell.

SKU: TSSP-1 Category: Tags: ,



Thermistor Introduction

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Dyacon thermistor probe TSSP‑1™ is a precision sensing element in a robust, waterproof package.

Unlike other stainless steel probes, TSSP‑1 is swaged, with the stainless steel enclosure formed around the double-potted sensor element. This construction forms a very durable probe assembly that will not crack or separate in cyclical temperature or vibration environments.

TSSP‑1 is suitable for soil and liquid submersion measurements. The thermistor can be used for continuous cyclic operation at -40°C to 105°C (-40°F to 221°F) and is interchangeable to within +/- 0.10°C. This facilitates easy setup, maintenance, and upgrade for most applications.

An included cable length of 6 m (20 ft) minimizes the need for cuts and splices. The TSSP‑1 kit also includes installation instructions for the Dyacon control module.

Manuals & Software


TSSP-1 Data SheetTSSP-1 Product Manual

Key Features


TSSP‑1™ is double potted with thermally conductive epoxy and swaged in a stainless steel probe. The swaged enclosure increases the cable strain relief and sensor sealing. The sensor is designed to neither crack nor come loose from the stainless steel tip, even in high temperature cycling environments.


An interchangeability value of 0.1°C ensures that TSSP‑1 thermistors are field replaceable without further calibration.


Once TSSP‑1™ is installed in a Dyacon Control Module, the user can simply enable the thermistor configuration through the menu, and probe measurements will be included in the condition reports.


Resistance10 k ohms @ 25°C
Tolerance+/- 0.1°C (within 0°C to 70°C/ 32°F to 158°F)
Measurement Range-40°C to 105°C (-40°F to 220°F)
Storage Temperature-40°C to 105°C (-40°F to 220°F)
Interchangeability Error+/- 0.1°C (within 0°C to 70°C/ 32°F to 158°F)
Dissipation Constant2 mW/C in still air
Cable to Thermistor ConnectionThermistor leads welded to cable
Submersion Depth>2 m (6 ft)
Cable Length6.1 m (20 ft)
Wire22 AWG, 7 x 30, tin plated, PVC
Cable JacketPVC, gray
Cable Diameter3.8 mm (0.15 in)
Probe Dimensions4.8 mm x 38.1 mm (0.188 in x 1.5 in)
Weight100 g (4 oz)
Probe MaterialsThermoplastic elastomer overmold, swaged in 305 stainless steel probe