• Temperature range: -328 to 2498°F (-200 to 1370°C) for Type K and -328 to 1922°F (-200 to 1050°C) for Type J
  • Rugged water resistant design with protective holster/stand
  • Large 2000 count LCD displays T1, T2 or T1-T2, plus Elapsed Time
  • Data Hold, Relative, MIN/MAX/AVG and HOLD functions
  • Programmable Hi/Lo audible alarms
  • Selectable °C/°F units


The Extech 421502 dual input thermometer offers a dual J or K thermocouple input, with each value shown on the dual display with relative and programmable high / low alarms. The programmable alarms will alert you if a measurement is ever taken higher or lower than your desired settings.

The Extech 421502 dual input thermometer features a wide range, from -328 to 2498°F for Type K thermocouples and from -328 to 1922°C for Type J thermocouples, with high 0.05% accuracy. Other features of the Extech 421502 dual input thermometer include a large dual LCD display, MIN / MAX / AVG readings, data hold and relative functions.

The Extech 421502 dual input thermometer is constructed with a rugged, waterproof housing and comes complete with two Type K bead wire temperature probes (range: -4 to 482°F / -20 to 250°C), a protective holster with stand, and 9V battery.

In Stock

Manufacturer Stock

This stock is typically available to ship in 3 - 5 working days.

Part Number Price Available
$170.99 27 in stock

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 3-5 business days". Click here to select options