We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Digital pocket thermometer with 4-digit LCD display and 5-inch stem

Uei Test Instruments

Uei Test Instruments 550B Pocket Thermometer -58°F to 572°F

SKU CH-B9DW-YVG26

Digital pocket thermometer measures -58 °F to 572 °F with a 5-inch stem and 4-digit LCD display

  • Product typeEnvironmental & Mechanical
  • Wide temperature coverage from -58 °F to 572 °F
  • Metric range spans -50 °C to 300 °C
  • 5-inch stem reaches into ducts and machinery
  • 4-digit LCD with 1/4-inch digits for clear reading
  • Backed by UEI Test Instruments quality

Digital Pocket Thermometer

The UEI Test Instruments 550B is a compact digital thermometer built for technicians who need fast temperature checks in HVAC, electrical or automotive work. It fits in a pocket and delivers readings without the bulk of larger meters. This tool suits professionals who value portability and a clear display for routine diagnostics.

Thermals noise and power draw

The instrument operates on battery power with no fan or moving parts, so it runs silently and adds negligible heat to the measurement environment. Its low current draw supports extended field use between battery changes. There are no thermal management concerns during normal operation.

NIST-traceable certificate impact

The unit ships without a NIST-traceable calibration certificate, so users requiring documented traceability for quality systems must arrange certification separately. The 4-digit LCD with quarter-inch digits provides clear readouts in both Fahrenheit and Celsius scales. The five-inch stem reaches into ducts or enclosures where shorter probes cannot.

How it compares

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

Price $22.99
Cheaper than about 74% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameUEI TEST INSTRUMENTS
Product typeEnvironmental & Mechanical

Questions about this item

How do I install the thermometer probe into the 5-inch stem for the first reading?

Insert the probe fully into the stem until it seats firmly, then power on the unit and wait for the 4-digit LCD to stabilise before taking a measurement

What maintenance will the 550B pocket thermometer need after regular use?

Wipe the 5-inch stem and LCD window with a dry cloth after each session; replace the internal battery when the display dims or readings drift

What limit appears first during continuous high-temperature testing?

The 572 °F upper measurement limit is reached before any other constraint, so sustained readings above that value cannot be displayed

More in Meters, Testers & Measuring Tools

Similar items