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Stainless steel tube, threadless probe-type resistance temperature detector

Probe RTD sensors without screw fittings

The PT100-5 is a compact and versatile probe-type Platinum Resistance Thermometer (PT100 RTD) featuring a stainless steel sensing tube without screw fittings. This design makes it an ideal choice for applications where the sensor is inserted directly into a thermowell, clamped in place, or embedded within equipment — offering a clean, low-profile installation without the need for threaded process connections.

The PT100-5 is fully waterproof, making it well suited for wet or humid environments. Lead wire material and length are fully customisable, and the sensor is available in three probe diameters and multiple probe lengths to accommodate a wide range of installation geometries. Its straightforward construction and broad compatibility make it a popular choice for both OEM integration and field replacement applications.

Brand:
PIDMaxWell
Item no.:
PT100-5
Payment:
T.T, Credit Card, Paypal etc, to be negotiate
Market price:
$10
Price:
$5
Product origin:
Made in China
Color:
Orange, silver, white
Min order:
10 PCS
Product weight:
0.1kg
Lead Time:
14 days after payment confirmed

Inquiry now

Parameter	Specification
Sensor Type	Platinum Resistance Thermometer (PRT / RTD)
Sensing Element	PT100 — R₀ = 100 Ω at 0 °C
Temperature Coefficient	α = 0.00385 Ω/Ω/°C (IEC 60751 / DIN EN 60751)
Accuracy Class	Class B (±0.30 °C at 0 °C) standard; Class A (±0.15 °C) on request
Temperature Range	−50 °C to +100 °C / +200 °C / +300 °C (selectable)
Wiring Configuration	3-wire (standard)
Probe Body Material	316 Stainless Steel
Probe Fitting Type	None (smooth sheath — for thermowell or compression fitting use)
Probe Diameter	3 mm / 4 mm / 5 mm standard; custom on request
Probe Insertion Length	50 mm / 100 mm / 150 mm standard; custom on request
Tip Style	Rounded (cylindrical) standard; pointed tip available on request
Lead Wire Insulation	SS Braided \| Silicone \| Fibre Glass \| PTFE (Teflon)
Standard Lead Lengths	2 m \| 3 m \| 5 m \| Custom on request
Termination Options	Bare wire ends \| Fork terminals \| Custom
Waterproof Option	IP67 sealed version available on request
Response Time (t₀.₅)	≤ 3.5 s (in flowing liquid, 5 mm probe, typical)
Insulation Resistance	≥ 100 MΩ at 25 °C (500 V DC)
Vibration Resistance	10–500 Hz, 20 g (IEC 60068-2-6)
Storage Temperature	−60 °C to +150 °C
Compliance	IEC 60751, RoHS

The PT100-5 ordering code is a hyphen-separated string that fully defines the sensor configuration. Each field specifies one customisable parameter, allowing customers to precisely describe the required sensor in a single part number. The code structure is taken directly from the official Maxwell FA PT100-5 datasheet.

PT100-5 – [①] – [②] – N – [③] – [④] – [⑤]

Ordering Code Field Definitions:

Field	Description	Options
①	Probe Diameter (mm)	3 = 3 mm \| 4 = 4 mm \| 5 = 5 mm \| Custom on request
②	Probe Length (mm)	50 = 50 mm \| 100 = 100 mm \| 150 = 150 mm \| Custom on request
N	No Screw Fittings	Fixed field — indicates smooth probe sheath without threaded fitting
③	Lead Wire Length (mm)	2000 = 2 m \| 3000 = 3 m \| 5000 = 5 m \| Custom on request
④	Lead Wire Material	SS = Stainless steel braided \| SILI = Silicone \| FBGL = Fibre glass \| FEFL = PTFE/Teflon
⑤	Temperature Range	100 = up to 100 °C \| 200 = up to 200 °C \| 300 = up to 300 °C

Ordering Examples:

Order Code	Configuration Description
PT100-5-5-50-N-2000-SS-200	5 mm dia., 50 mm length, 2 m SS braided cable, 200 °C — Standard general-purpose
PT100-5-5-100-N-2000-SS-200	5 mm dia., 100 mm length, 2 m SS braided cable, 200 °C — Most common configuration
PT100-5-5-100-N-3000-SS-300	5 mm dia., 100 mm length, 3 m SS braided cable, 300 °C — High-temperature industrial
PT100-5-5-95-N-3000-FEFL-300	5 mm dia., 95 mm length, 3 m PTFE armoured cable, 300 °C — Chemical/food-grade
PT100-5-4-100-N-2000-SILI-200	4 mm dia., 100 mm length, 2 m silicone cable, 200 °C — Flexible routing application
PT100-5-3-50-N-2000-FEFL-200	3 mm dia., 50 mm length, 2 m PTFE cable, 200 °C — Miniature compact sensor
PT100-5-5-150-N-5000-FBGL-300	5 mm dia., 150 mm length, 5 m fibre glass cable, 300 °C — Deep immersion, oven/furnace
PT100-5-6-100-N-2000-SILI-200	6 mm dia. (custom), 100 mm length, 2 m silicone cable, 200 °C — Custom diameter

Official Ordering Code Reference (from Maxwell FA PT100-5 Datasheet):

Click on below link to download catalog, user manual for PT100-5

PT100-5 Catalog

The PT100-5 is a highly adaptable temperature sensing solution suited to a wide range of industries and installation scenarios where a fitting-free, waterproof probe is required.

Thermowell Installations. The slender stainless steel probe inserts directly into standard thermowells in pipelines, tanks, and reactors, providing accurate temperature measurement without requiring a threaded connection on the sensor itself. This simplifies sensor replacement and reduces installation time.
OEM and Machine Building. The compact, fitting-free design is ideal for embedding into machinery, moulds, heating platens, and custom equipment during manufacture. The choice of lead wire material allows the sensor to be matched to the thermal and chemical conditions of the surrounding environment.
Food and Beverage Processing. The waterproof construction and hygienic stainless steel probe make the PT100-5 suitable for temperature monitoring in food processing equipment, refrigeration units, cold storage rooms, and beverage dispensing systems.
HVAC and Refrigeration. The sensor can be inserted into air ducts, refrigerant lines, and heat exchangers to provide accurate temperature feedback for control systems, with the silicone or Teflon lead wire options offering flexibility in high-humidity or chemically aggressive environments.
Laboratory and Research Equipment. The small probe diameter (as fine as 3 mm) enables precise point-temperature measurements in laboratory instruments, incubators, ovens, and environmental chambers.
Plastics and Rubber Processing. The sensor can be inserted into thermowells or directly into heated tooling to monitor mould and die temperatures, supporting consistent product quality in injection moulding and extrusion processes.
Water and Wastewater Treatment. The fully waterproof design allows the PT100-5 to be used in submersible or splash-prone installations, such as monitoring water temperature in treatment tanks, pumping stations, and cooling towers.

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