The Fluke 37 is a rugged, portable multimeter ideal for use on the bench or in the field. It provides unsurpassed performance and input protection in the most demanding working conditions. The Fluke 37 combines the performance and accuracy of a digital meter with the speed and dynamic measurement capability of an analog meter. The 3200-count, digital display offers better resolution than a conventional 31/2-digit, 2000-count display, and the 31 -segment analog bar graph display provides quick and easy dynamic measurement indications. Inaddition, auniqueTouch-Hold™*mode allows you to watch the probes during critical measurements. The Touch-Hold mode locks the measurement into the display for viewing and automatically updates the display when a new measurement is taken. These and other useful features of the Fluke 37 are explained in detail in this manual.