The pocket-sized microprocessor-based Heat-Prober Type K thermometer updates readings three times per second with an accuracy of ±0.2% of reading ±1 digit in 1°F or °C resolution. The precision cold junction is compensated with a unique, permanently calibrated circuit. Advanced electronics are housed in ABS plastic, thoroughly tested for environmental integrity and subjected to 4-foot drop tests, battery life and running life tests. All units are calibrated with simulated EMF inputs and powered during a high-temperature burn-in cycle. The result is a thermometer so durable and reliable that it comes with a 3-year warranty. Meter range is 70 to 1370°C. Features a bright .33" high red LED display for normal to low lighting conditions. The 3200M operates on a rechargeable 6.25V NiCad battery pack. Includes battery recharger/AC line adapter.