Description:Clear, patented all-round LED display ,In accordance with DIN EN 61243-3:2011 and CAT III,LC display showing the reading,RC trigger function and vibrating load buttonsThe testo 750-3 voltage tester is the most high-performance model in Testo\'s convenient and reliable voltage tester family. In addition to the unique fibre-optic technology, the single pole voltage testing, the torch for measuring point illumination and the all-round LED display, it also has an LC display where the value currently being measured is shown.DC voltage Measuring range: 12 to 690 V Accuracy: according to DIN EN 61243-3:2011AC voltage Measuring range: 12 to 690 V: Accuracy: according to DIN EN 61243-3:2011Operating humidity 0 to 95 %RH Operating temperature: -10 to +50 °CStorage temperature: -15 to +60 °C Overvoltage Category: CAT IV 600V; CAT III 1000VProtection class: IP64 Accessories: TESTO 750-3 Digital Voltage Tester