The Seaward DO4002 Handheld Digital Microhmmeter, 4 MOhms to 400 Ohms offers true portability without any sacrifice to accuracy or functionality. This model employs the four terminal resistance measurement method to eliminate the effect of lead resistance errors. This ruggedly constructed instrument is housed in a stylish plastic case with easy to use keyboard. The measured values are displayed on a large LCD screen which allows for ease of viewing. The DO4002 features automatic or manual range selection, 1 micro Ohm resolution, and true zero capability.