The UNI-T UT17B PRO is a quick, accurate and robust true-RMS multimeter. In addition to the normal functions, this meter also features a number of exceptional features such as VFC mode, full range mis-operation protection and capacitance ,frequency, duty cycle and temperature measurements. The VFC mode can be used to accurately measure signals with a variable frequency. Furthermore, due to the mis-operation protection, the meter is protected against damage when the knob is turned in the wrong position while performing a measurement. This multimeter also has a backlit LCD, flashlight and is drop resistant up to one meter which makes it useful in almost all environments.