PR291 series nanovolt/Microhm thermometer is a portable high-precision measuring instrument specially designed for the field of temperature measurement. It has a measurement accuracy of 40ppm and a measurement resolution of 10nV/10μΩ. It is equipped with 2 or 5 full-function measurement channels. The 30mV and 400Ω electrical ranges are added to match standard thermocouples and PT100 sensors, and three working modes of patrol inspection, single-channel tracking and temperature difference measurement are designed to facilitate user operation.
Compared with general-purpose high-precision digital multimeters, the thermometer has more advantages in terms of range, function, accuracy, and ease of use. It is very suitable for various high-precision temperature or electrical signal measurement, verification furnace / constant temperature bath temperature field test, multi-channel temperature signal acquisition and recording and other usage scenarios.