Sinometer 6400 Ultra-thin Pocket-size Auto-ranging Digital Multimeter AC/DC Voltage + Resistance +Capacitance + Frequency + Duty Cycle + Continuity + Diode Check Pocket-size with lightweight, measures only 4.5 X 3 X 1 inches and weighs 4 oz Relative measurement Data hold & auto-off ABS case & test leads holder for protection & easy storage