Qualitrol 150/151 Side Mount Bi-Metal Thermometer

Side mounting bi-metal thermometers with temperature indication and reset-able maximum temperature pointer. Clear indication of temperature with 4” (101 mm) dial. Models can be combined with a well (pocket) to allow units to be replaced without draining or compromising the tank seal. Highly accurate and made of corrosion resistant materials for long, trouble free life.


For temperature indication where the point of measurement (the well or pocket) is on the side of the apparatus and can be easily viewed.

In Stock
100% Original and quality
Extended Warranty



  • Bi-metal measurement with reset-able maximum pointer
  • 4 inch (100mm) dial face
  • Power is not required for function


• Various temperature ranges
• Tank connection style, probe length and diameter, compatible well
• Sealed or vented lens


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