The ATT100 is a K-Type Liquid temperature probe. 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.