UEi Test Instruments designed the DT304 to offer professionals a fully featured, IP67-rated digital logging thermometer. Designed for the real world, the DT304 is a four-channel thermometer with an easy-to-read backlit display, built-in thermocouple storage and a protective rubber boot. The DT304 includes real-time data logging of up to 9,999 measurements and measures -346-Degree to +2192-DegreeF (Type J) and -328-Degree to +2498-DegreeF (K). The IP67 rating ensures the product is water- and dust-proof UEi Test Instruments has over 45 years experience designing and manufacturing a broad range of award-winning, industry-leading Test and Measurement Tools. UEi Test Instruments are sold throughout North America and Canada and professionals recognize the UEi brand for quality and innovative features designed to solve real-world problems. UEi's NIST-certification laboratory is compliant with ISO17025. UEi backs its products with dedicated technical support, service and repair teams.