Tekpower Mastech MS8209 5 in 1 Multimeter with High accuracy and resolution on all ranges, Enviormental Tester + Multi Function DMM DMM features but also 4 major environmental testing measurement functions Digital multimeter with 4 digits LCD display, with frequency, temperature, capacitance, sound leve Selectable Auto/Manaul ranging with very good sensitivity, resolution and accuracy Overload indication and protection, low battery indication, auto power off and back light In full comformance with IEC1010 and CAT III Standards