Premium Stainless Steel Waterproof PT100 RTD Temperature Sensor Probe (Threaded)

Price: $22.50
46 units available
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This is a Premium quality 6.6 feet long stainless steel (304) water resistant (submersible) RTD PT-100 temperature sensor probe with thread. The cable is wrapped up by alloy mesh and sealed with a layer of Teflon.  The accuracy can reach 0.1 degree resolution and works well with most PID or Solar temperature controllers.


  • Type: PT100 (threaded)
  • Max temperature: 400'C/ 752 F Tip/ 280'C/ 536F wire
  • Thread length:16mm/0.64inches
  • Diameter of thread:7.1mm/0.28inches
  • Tip: Stainless steel 304
  • Tip Length: 4cm/1.57 inch (waterproof)
  • Tip Diameter: 5mm/0.197 inch
  • Wire length: 2M (6.5ft)

Please note: Only the tips portion is waterproof.


Average rating 4 out of 10 ( based on 1 review )

Works well so far, but is rusting

Review by James on 5/25/2013

Using this in a DIY sous vide system and it is very accurate but is corroding like crazy - every few days i pull it out and the water inside the strain-relief coil is black with rust. The rest of it is still fine, but I feel like it's only a matter of time till it rusts through the back and fails completely. I went with this one over the other waterproof one on this site because it looked like it could be submerged for now and repurposed for a screw-in application later, but it appears to not be suitable for immersion at all. UPDATE: 5 weeks after receiving it, this thing has now failed. It fluctuates up and down rapidly, by 5 degrees or more.

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