Digital Multimeters (DMM)

Prior to using the Fluke Digital Multimteres I used the cheap ones, like from Radio Shack.  They say "to error is human" and when you error with a DMM  it's usually something like forgetting to change from Ohms to AC volts and then sticking the probes into the A.C. mains outlet.  The next thing is you get to watch and smell the smoke coming out of the meter.  Sometimes the destructive energy is not great enough to let the smoke out and you just get wrong readings.

The cure for that is to use the Fluke (or other high end) DMMs that are designed to withstand that kind of abuse. This is my second model 88. 

I wore out the switch on my first model 88 (I don't think they had the lifetime warranty then.) and sometimes it does not turn off and so drains the battery.

I've had a problem with some probes that have opened.  This was caused by poor strain relief.  I'll see if I can find the dead ones to add a photo.

Good probes have sharp points which allows probing fine pitch Surface Mount Technology parts as well as probing through conformal coating.
Fluke and Greenley have nice sharp pointed probes.

LCA-10 A.C. Line Current Test Adaptor

80i-400 A.C. Current Clamp

80T-150U F/C 1 mv/deg Temp Probe

85 R.F. Probe

Type K Thermocouple Temp Probe

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