Fluke 179 - True-RMS Multimeter The 170 Series meet CAT III and CAT IV IEC 61010 standards. It has a 6000 count display and bar graph that update every 4 seconds, for instant accurate results. The unit is able to measure capacitance up to 9999 uF. With the improved DC voltage accuracy compared to the 175, and the addition of a back light this units is ideal for all types of testing and a wide range of sectors due to the durable materials this range is made from it could be used in laboratory testing to industrial working environments. This unit has a temperature function that allows the user to take readings in fahrenheit/Celsius with the supplied k type probe, This allows the user to identify any potential heating issues in a working environment that could cause extensive damage to machinery etc.