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Digital pocket thermometer with 4.9 inch stem and LCD display

TEST PRODUCTS INTERNATIONAL 306C Digital Pocket Thermometer 58 F to 300 F 4.9 in Stem

SKU CH-NHJG-Y9M2K

Digital pocket thermometer measuring -58 °F to 300 °F with a 4.9 in stem

  • Product typeEnvironmental & Mechanical
  • Wide temperature range from -58 °F to 300 °F
  • NIST-traceable calibration certificate included
  • 9 in stem reaches deep into ducts
  • Clear 10 mm LCD digits read easily
  • Compact 4.9 in length fits in pocket

Digital pocket thermometer for quick checks

The TEST PRODUCTS INTERNATIONAL 306C measures temperature from -58 degrees to 300 degrees Fahrenheit and -40 degrees to 150 degrees Celsius. A 4.9 inch stem reaches into ducts, liquids or machinery. The 10 mm LCD digits are readable at a glance. It suits technicians who need fast spot readings.

Passive operation keeps it silent and cool

No fan or active cooling is present so the tool runs silently. Power draw is limited to the internal battery circuit. The compact body stays at ambient temperature during normal use. There are no moving parts to wear or generate noise.

Sustained use limited by battery and range

Continuous monitoring is possible until the battery depletes. The fixed range tops out at 300 degrees Fahrenheit so higher temperatures cannot be tracked. No data logging or wireless output is included. Users needing extended records or alerts will require a different instrument.

How it compares

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

Price $10.99
Cheaper than about 90% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameTEST PRODUCTS INTL.
Product typeEnvironmental & Mechanical

Questions about this item

How do I install the TEST PRODUCTS INTERNATIONAL 306C thermometer, and what step do people get wrong?

Insert the 4.9 in stem into the medium, wait for the 4-digit LCD to stabilise, then read the temperature; the common error is removing it before the display settles.

What maintenance or replacement will the 306C need later?

Replace the button cell when the 10 mm digits dim or the LCD blanks; the stem and electronics need no scheduled service.

What limit shows up first on the 306C during sustained use?

The range tops out at 300 °F (150 °C); prolonged exposure near that limit can accelerate battery drain and display lag.

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