Megger's DET3 Series Earth Ground Testers offer unique solutions for your earth ground measurements. The complete kit of measuring instrument, measuring leads and skewers is available in a robust hard shell case â everything was needed for your measurements. The housing of the earth measuring device has protection class IP 54 and is therefore suitable for use outdoors. The measuring device is designed in an easy-to-use way: A large selection switch makes it easy to select between 2 or 3-wire earthing measurement.With a large and easy-to-read LCD display and a large start button, the device is particularly well suited to your requirements for outdoor earthing measurements. The devices automatically check probes and auxiliary resistor and display the status on the LC display. The devices also contain a voltmeter for measuring the ground voltage. The maximum measuring voltage can be set to 25 or 50 V.This text is machine translated.