OHM-G! makes determining the resistive value on four-bar resistors as simple as it can be. Just spin the colour bands with your thumb, and OHM-G! calculates the resistance and testing tolerance instantly.

Whilst it is a simple problem, OHM-G! does a great job of getting you the answer you need instantly and as many times as you require. Add it on your phone and have it to hand whenever and whereever you need it. Go on! It's less than a quid!