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Dwyer DBTA3181 digital solar-powered bimetal thermometer with 18-inch stainless steel stem and 3-inch LCD display

Dwyer Instruments Inc.

Dwyer Instruments DBTA3181 Digital Solar-Powered Bimetal Thermometer

SKU CH-5BV1-FWTR0

Measures -58 to 302 °F with an 18 in stainless stem, solar-powered above 35 lux, and a 3 in adjustable-angle display

  • Product typeEnvironmental & Mechanical
  • Wide -58 °F to 302 °F range covers diverse processes
  • Solar cell runs from just 35 lux ambient light
  • 18 in stainless stem reaches deep into tanks or ducts
  • 3 in 3½-digit LCD shows clear ½ in high digits
  • Adjustable-angle head lets you read from any position

Digital Solar-Powered Bimetal Thermometer

The Dwyer Instruments DBTA3181 is a digital thermometer built for process and environmental monitoring. It suits technicians and engineers who need a self-powered instrument for local temperature indication without external wiring.

Measurement Range -58 to 302 Degrees F

The unit reads from -58 degrees Fahrenheit to 302 degrees Fahrenheit, covering -50 degrees Celsius to 150 degrees Celsius. A 3.5-digit LCD with half-inch digits provides clear readout. Operation requires a minimum of 35 lux; below that level the display will not function.

Adjustable-Angle 18-Inch Stem with 1/2 NPT

The 18-inch stainless steel stem connects via a half-inch NPT fitting and features an adjustable-angle housing for flexible viewing. The 300 series stainless steel case and acrylic lens suit industrial environments. A solar cell powers the device, removing the need for battery replacement or external supply wiring.

How it compares

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

Price $112.99
Pricier than about 66% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameDWYER INSTRUMENTS
Product typeEnvironmental & Mechanical

Questions about this item

Will the 18-inch stem and 1/2 in NPT fitting connect to my existing process piping?

The 18 in stem and 1/2 in NPT thread match standard industrial fittings, so it will thread directly into most existing pipe ports without adapters.

How can I verify the LCD is updating correctly after installation?

The 3 1/2-digit LCD shows live temperature in 1/2 in digits; a steady reading within the -58 to 302 °F range confirms the solar cell is receiving at least 35 lux and the sensor is operating.

Does the package include a NIST-traceable calibration certificate or must I order one separately?

The supplier notes specify "Includes NIST-Traceable Certificate No", so the thermometer ships with the certificate already in the box; no separate purchase is required.

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