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Stainless steel bimetal thermometer with three inch glass dial showing zero to two fifty Fahrenheit

Value Brand

Value Brand Bimetal Thermometer 3 in Dial 0 to 250F

SKU CH-4VRT-QGTJR

Measures 0 to 250 °F with a 3-inch dial, 4-inch stem, stainless steel housing, glass lens and 1/2-inch NPT bottom connection

  • TypeEnvironmental & Mechanical
  • Accurate readings from 0 to 250 °F and -20 to 120 °C
  • Durable stainless-steel housing resists corrosion in tough environments
  • Clear 3 in glass-faced dial for easy viewing at a distance
  • 4 in stem with 1/2 in NPT threads fits standard process connections
  • Ready for quality checks with included NIST-traceable calibration certificate

ZORO SELECT 3 in Dial Thermometer

The ZORO SELECT bimetal thermometer provides a 0 to 250°F range with a -20 to 120°C dual scale for environmental and mechanical testing. A 3 in glass lens dial and 4 in stem suit HVAC, plumbing or industrial process checks where a bottom-mounted 1/2 in NPT connection is required.

Stainless steel housing with glass lens

The stainless steel housing and glass lens resist corrosion and impact during normal use. No external power is needed so the instrument draws zero current and operates silently. The bimetal coil responds directly to temperature changes without electronic drift.

Sustained exposure within the 250°F limit

Continuous operation at the upper end of the scale maintains accuracy because the mechanical movement does not degrade with heat soak. The included NIST-traceable certificate verifies calibration at the time of manufacture. The thermometer is not suited for temperatures above 250°F or for applications requiring a top-mounted stem.

Highlights

  • Accurate readings from 0 to 250 °F and -20 to 120 °C
  • Durable stainless-steel housing resists corrosion in tough environments
  • Clear 3 in glass-faced dial for easy viewing at a distance
  • 4 in stem with 1/2 in NPT threads fits standard process connections
  • Ready for quality checks with included NIST-traceable calibration certificate

Specifications

BrandZORO SELECT
TypeEnvironmental & Mechanical

Questions about this item

How do I install the 1/2 in NPT stem correctly, and what is the common mistake?

Thread the 4 in stem into a 1/2 in NPT fitting using pipe sealant on the threads only. The frequent error is applying sealant to the sensor tip, which insulates it and gives false readings.

Will the glass lens or stainless housing need replacement after prolonged exposure to 250 F?

The glass lens and stainless housing are rated for the full 0 to 250 F range. Under normal conditions they do not require scheduled replacement, but inspect the lens for cracks after any mechanical impact.

At what point does the bimetal element lose accuracy during continuous high-temperature use?

Sustained operation near 250 F can cause gradual calibration drift in the bimetal coil. The included NIST-traceable certificate documents initial accuracy; plan periodic recalibration if the thermometer remains at the upper limit for extended periods.

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