Digital Multimeters - Tenma 72-7735

Measuring With Alligator Clips
           One thing that I really like about this multimeter is that it came with alligator clips. I use alligator clips all the time when prototyping, so having them be able to connect up to a DMM not only saves time since I don't have to hold them to take a measurement, but it allows for a much more solid connection that I never doubt is correct.

           So as you can see I went through and test measured a few basic components: 10kΩ Resistor that measured 9.9kΩ. The tolerance on the resistor is +/- 5% so this is within range. 10µF Capacitor that measured 10.09µF, obviously a high quality capacitor. I went around measuring many different electronic components that I had laying around and after about 50 tries and 50 good measurements, I was convinced that this multimeter would be reliable for my testing and electronic building needs.

Frequency Measurements

High Current Measurements

Measuring With DMM Probes
           The old fashioned and probably most common use of the DMM is with standard probes that have sharp tips. The sharp and pointed tips make it easy to make contact with electronics of any size from thru-hole to surface mount so that you can measure a component's value, system voltage or current.


           Above you can see a test measurement of a thru-hole resistor in a PCB circuit. The resistor itsself is a 5.6kΩ resistor, and it is measuring 5.47kΩ well within the rated tolerance for this resistor. Again, here you can see how the previous alligator clips wouldn't be able to make contact with the resistor, but the sharp-ended probes make contact with the resistor to measure it with no difficulty.