Kyoritsu K3131 insulation tester is a safe and robust instrument, and it has a lot of advantages as: - User chosen withstanding voltage 250, 500 og 1000V - Lockable test not - Then you can have both hands free - Backlighted scale - Easy to read - Warning in dangerous voltage - For extra safety - Built in ohm meter - For measuring on earth connections an earth leads (for safety) - Produced after ISO 9001. - Protected with built in fuse. K3131 are working on behalf on the the constant current prociple, meams that the test current is unchanged on changed loads. K3131 demands IEC 61010-1 KAT III 600V and is delivered i a robust housing incl. pouch, test leads, manual and batteries. Technical data: Withstand voltage: 250,500 og 1000V - user choseable Mesuring range: 0-100M, 0-200M, 0-400M Measuring current: Konstant>1mA Resistance measuring: 0-2-20 Test voltage: 9V/200mA Battery: 6x1,5V LR6 (incl.) Size: 186x167x89 mm Weight: 640 g