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Stainless steel long reach dial thermometer with 48 inch stem and 3 inch glass faced dial

Dwyer Instruments Inc.

Dwyer Instruments BTLRN348101 Long Reach Dial Thermometer 48 in stem 3 in dial 0 to 200 F measurement tool

SKU CH-XA6Y-HEQ5N

Long-reach dial thermometer with a 48 in stem and 3 in dial for 0 to 200 F readings in 300 stainless steel housing

  • Product typeEnvironmental & Mechanical
  • 48-inch stem reaches deep vessels
  • 3-inch dial gives clear 0-200 °F reading
  • 300-series stainless housing resists corrosion
  • Glass lens protects scale from damage
  • 1/2-inch NPT back connection fits standard fittings

Long Reach Dial Thermometer

The Dwyer Instruments BTLRN348101 is a bimetal thermometer built for industrial and HVAC professionals who need accurate temperature readings in deep or hard-to-reach locations. Its 48-inch stem extends access into ducts, tanks, or pipelines where standard probes cannot reach.

1/2 inch NPT back connection

The thermometer installs via a 1/2 inch NPT back mount, which limits orientation to rear-entry piping or fittings. The 300 stainless steel housing and glass lens withstand harsh environments, but the fixed connection type may not suit all panel or surface-mount installations.

0 to 200 Degrees F range

The single specification that decides fit is the 0 to 200 Degrees F measurement span. Processes operating below freezing or above 200 Degrees F require a different instrument, as this model cannot display temperatures outside that window.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $152.99
Pricier than about 72% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameDWYER INSTRUMENTS
Product typeEnvironmental & Mechanical

Questions about this item

What stem length should I choose for deep-tank readings?

The 48 in stem reaches far into vessels or ducts so the 3 in dial stays outside for easy viewing.

How does the 0 to 200 F range perform on a hot-water system?

The bimetal element reads directly in Fahrenheit across the full 0 to 200 F span without needing conversion.

What does the 1/2 in NPT back connection mean for installation?

It threads into a standard 1/2 in NPT fitting, securing the 300 stainless steel stem and glass lens in place.

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