For 12/24/48V DC systems br / For application of DC circuits only br / Check if the circuit is electrified or not by stainless steel stylus br / Test by car battery or negative ground conversion br / 3M long retractable cable br / 1M extension cable br / Powered from the power source being measured, no batteries required br / Nixie display easy to read digital voltage display br / CE approval EN 61000-6-3(2007) , EN 61000-6-1(2007) br / Do not use on air bags br / Ultra-V will burn circuit board