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Dwyer Instruments Inc.

Dwyer Instruments BTLRN324101 Long Reach Bimetal Thermometer 24 in Stem 0 to 200 Degrees F

SKU CH-DXGR-E1EY9

Long-reach bimetal thermometer with 24 in stem measures 0 to 200°F using a 3 in stainless steel dial with glass lens and 1/2 in NPT back connection

  • TypeEnvironmental & Mechanical
  • 24-inch stem reaches deep into vessels
  • 0 to 200°F range covers common process temperatures
  • 3-inch dial provides clear local reading
  • 1/2-inch NPT back connection fits standard ports
  • Stainless-steel housing resists corrosion in harsh environments

Long-reach bimetal thermometer

The Dwyer Instruments BTLRN324101 is a dial thermometer built for industrial temperature monitoring with a 24-inch stem. It covers a range from 0 to 200 degrees Fahrenheit and features a three-inch dial housed in stainless steel with a glass lens. A 1/2-inch NPT back connection allows direct installation into process fittings. Each unit ships new with a NIST-traceable calibration certificate included.

Suited for deep-tank and pipeline checks

Technicians who need to reach into deep vessels, large pipes or tall ducts will benefit from the extended stem length. The bimetal mechanism requires no external power, making it practical for locations without electrical access. Buyers who require a digital readout, data logging capability or a shorter insertion depth should consider alternative instrument types. The fixed range also limits use outside the stated temperature window.

Handles 24-inch immersion with certified accuracy

The 24-inch stem provides ample reach for most tank and pipe installations while the NIST-traceable certificate documents calibration against national standards. The stainless-steel housing and glass lens resist corrosion and mechanical damage in harsh environments. Operation stops at the 200-degree Fahrenheit upper limit, so processes running hotter need a different temperature instrument.

Highlights

  • 24-inch stem reaches deep into vessels
  • 0 to 200°F range covers common process temperatures
  • 3-inch dial provides clear local reading
  • 1/2-inch NPT back connection fits standard ports
  • Stainless-steel housing resists corrosion in harsh environments

Specifications

BrandDWYER INSTRUMENTS
TypeEnvironmental & Mechanical

Questions about this item

What size NPT fitting does the 24 in stem need to mount properly?

The stem has a 1/2 in NPT connection so you need a matching 1/2 in NPT port or adapter on the tank or pipe.

Will the 3 in dial be readable next to older gauges that use smaller faces?

The 3 in dial diameter is larger than many legacy gauges, making it easier to read at a distance alongside smaller instruments.

How can I verify the thermometer is accurate after installing the 24 in stem?

The unit includes a NIST-traceable certificate; compare the dial reading at a known temperature point to the certificate values to confirm performance.

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