In the Navy, we used a discharging probe that had a resistor network in it to drain the charge in a somewhat gradual matter. It had a copper tip and a was very well insulated, with a large copper clip to connect to ground. The idea is to avoid the carbonizing damage of a spark, to provide a safe path to ground for the potential electrical energy, and to keep you, the outstanding technician, from becoming a statistic in tomorrow's paper. Incidentally, whenever we worked on high voltage equipment, we used one hand. The other hand was not to be in the equipment, nor to be grounded. Generally, you saw a lot of techs standing around with a hand in the gear and one in their pockets. It looked very casual, but the primary reason was to make sure that both hands would not complete a potentially high voltage circuit, allowing the electrical energy to pass through the heart...a certain show-stopper. We also used insulating rubber mats. The voltages I worked on ranged from to 450 to around 18,000, from 50 amps to around 75. In a monitor, the voltages can be extraordinarily high, but the current isn't as great, however, there's sufficient energy in there to kill you. The answers that you have listed aren't really the best, I think. I suppose that the high voltage meter might discharge the monitor, but that's not its purpose, at least as far as we were concerned in the Navy. The other three are definitely out...the thousands of volts that can be found in the monitor would ruin them almost instantly. That's more than you wanted to know about discharging monitors, I suppose, but I love the opportunity to use a soapbox! Drew Dunn [log in to unmask] > > Good-day to all. I am about to take A+ exam for second time. > Can anyone tell me, how and what device would one use if he(she) > were to let discharge off a pc monitor and why? > > a. probe > b. multimeter > c. line analyser > d. high voltage meter > c. low voltage meter >