Extech Thermometer Type J and K with Alarms – 421502

In stock

This thermometer features dual inputs for simultaneous readings of two subjects. Also features an alarm function which goes off when the temperature exceeds the programmed setting.

Extech Thermometer Type J and K with Alarms – 421502

Dual J or K input with dual display, relative and programmable High/Low audible alarms


  • Widest range with highest 0.05% accuracy
  • Rugged design for field use
  • Large dual LCD displays T1, T2 or T1-T2, plus Elapsed Time
  • Differential temperature between Type J, Type K, or both Type J and K
  • Data Hold and Relative functions
  • Programmable Hi/Lo audible alarms
  • Complete with two general purpose Type K bead wire temperature probes, protective holster with stand and a 9V battery
  • 1 year warranty

This dual input thermometer features the ability to measure two different subjects simultaneously. Featuring audible alarms for when the temperature exceeds the user programmable limits. With a large dual display screen which can display one or both of the temperatures plus the elapsed time.

This meter measures with either Type J or K reads and is designed with a rugged housing for field use. With a wide temperature range of -328 to 2498°F (-200 to 1370°C) you can measure almost anything around the house or farm. The 421502 Thermometer User Manual is attached to this page to answer any further questions.


  • Range, Type K: °F (°C) -328 to 2498°F (-200 to 1370°C)
  • Range, Type J: °F (°C) -328 to 1922°F (-200 to 1050°C)
  • Basic Accuracy: ±0.05% rdg
  • Resolution: 0.2°F/0.1°C
  • Dimensions: 7.6 x 3.6 x 2.1" (192 x 91 x 53mm)
  • Weight: 13oz (365g)

Unit Ship Weight: 1.5 lbs

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