The ADM-64 rugged 3 digit multimeter has a dual slope A-D converter. It uses C-MOS technology for auto-zeroing, polarity selection and over-range indication. It is ideal for use by electricians, electronic engineers, general industry and laboratories. Note 10A range is unfused Impact-resistant ABS plastic case with a protective rubber holster 40mm LCD display with large digits and function indicators Manual ranging via 30-position positive click action rotary switch Auto polarity indication on DC ranges Fast blow fuse for overload protection Auto power off 220 Vrms overload protection with fast blow fuse Low battery indicator Supplied with rubber holster, 2 test leads, K-Type thermocouple wire and battery