TBT HVAC Bi-Metal Thermometer



  • Hot water lines, boilers and hydronic heating


  • A durable and accurate thermometer with a rigid connection
  • Separable thermowell
  • Rugged steel case
  • Bi-metallic element
  • Dual scale (°F & °C)
  • Back or bottom connected
  • 1/2” NPT process connection
  • ASME B40.200 compliant
  • 5 year warranty


Dial 3.5” (90mm), aluminum with black markings
Case Steel
Lens Glass
Ring Steel chrome plated
Stem Brass
Thermowell Brass, 1/2” NPT (standard), separable
Movement Bi-metallic coil
Pointer Aluminum, painted black
Over-Range Enclosure Rating ±25% of full scale value
Reset Standard
Ambient Temperature -22°F to 158°F (-30°C to 70°C)
Process Temperature -22°F to 250°F (-30°C to 120°C)
Accuracy ±2% of full scale
Enclosure Rating IP50
Warning Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.

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