Description:Clear, patented all-round LED display,In accordance with DIN EN 61243-3:2011 and CAT III,Fibre-optics for optimum voltage indicationRobust housing with ergonomic handle and anti-slip ringYour reliable companion when it comes to testing electrical systems and equipment. The all-round LED display and unique fibre-optic technology mean the voltage indication can be seen clearly and distinctly from any position with this voltage tester. 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 750-1 Digital Voltage Tester