Gossen-Metrawatt-Metrahit-2-Digital-Multimeter-LCD-CAT-III-600-V-Gossen-Metrawatt-M205A-The-METRAHIT-2-digital-multimeter-from-Gossen-Metrawatt-has-a-rugged-&-shock-resistant-design-making-it-ideal-for-training-service-development-&-research-Automatic-blocking-sockets-prevent-incorrect-connection-of-measurement-cables-&-inadvertent-selection-of-the-wrong-measured-quantity-This-significantly-reduces-danger-to-the-user-the-instrument-&-the-system-under-test-&-eliminates-it-ent