RTD sensor for 1/2" NPT Threaded Thermowell

Starting at: $30.00

  • Model: PT100-TW1/2NPT


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Product Description:

This PT100 RTD sensor is designed to fit into a 1/2 NPT threaded thermowell. The probe body is made of stainless steel. The mounting is 1/2" NPT thread. This probe has a detachable connector with a spring lock. The detachable cable is convenient for systems that need to be moved for cleaning. It reduces the possibility of breaking the cable when the tank is moved around. 70 mm and 170 mm sensor tip cable length (see below) are offered, please contact us for different length options.

This item includes 1 gram thermal grease (right in the above picture). This grease can help increase the heat conductivty between the sensor tip and the thermowell wall.

The sensor cable length (from the sensor tip to the end of sensor tip cable). Top is 170 mm; bottom is 70 mm. For details, please check the pictures here: 70 mm Pic #1, 70 mm Pic #2, 170 mm Pic #1, 170 mm Pic #2

The sensor tip will be dropped inside the thermowell, and get touch with the bottom of thermowell. This sensor can fit the thermowell which ID is larger than 4mm (5/32").

Note: Silicone gasket/cap for this probe connector is available here.

Optional Braided Cable and Connector. The standard cable supplied with sensor is shown in the picture above. It is three color-coded conductor cable with two layers of TEFLON insulation that is very strong and weather resistant. We offers 6 ft (2m) and 12 ft (4m) options for standard cable. The braided cable added an extra layer of metal braid between the TEFLON layers for more protection. Two cable lengths, 8 ft or 12 ft, are offered. Three different types of panel mount connectors are offered. One is our standard RTD connector (RTDCON), another is a 3-pin XLR connector (XLRCONfemale panel mount XLR), the other is 3-pin XLR connector (XLRCON-Mmale panel mount XLR). For all types of braided cables, the mating connector has a 2 ft 3 inch (700mm) of TEFLON cable installed. Users can use this cable without any soldering work. Please see the picture below for details. Please note: the option for probe without cable is for users that want to use one controller and one cable to control more than one tank. In other words, it is for customers that already have a cable.

Standard Cable Braided Cable with RTD connector

Braided Cable with XLRCON-M connector (Male Panel Mount)

Braided Cable with XLRCON connector (Female Panel Mount)

Click here for extra standard cable.
Click here for extra braided cable with RTD connector.
Click here for extra braided cable with XLRCON connector.
Click here for extra braided cable with XLRCON-M connector.


Accuracy Class A. +/-0.15 °C at 0.0 °C
Alpha 0.00385
Maximum temperature 120 ºC (248 ºF)
Sensor Tip Cable Length 70 mm (2 3/4") or 170 mm(6 11/16")
Sensor Tip Length 10.4mm (13/32")
Sensor Tip OD 4mm (5/32")


This product was added to our catalog on Wednesday 03 December, 2014.

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