The Mastech MS8211 is a pen-type digital multimeter with non-contact AC voltage sensor and has many functions including measurement of AC/DC voltage， resistance， diode and continuity test. It is equipped with one excellent cloth bag for conveniently-carrying. With maximum value measuring and holding， auto range switching and retractable tip， this portable professional measuring instrument is ideal for use in the fields， workshop， school and home applications. Features: Perform measurement of AC/DC voltage， resistance， diode， continuity test and non-contact AC voltage detection. Non-contact AC voltage detection with sound and flash alarm. (Max.detection distance: as far as 6in， depending on the adjustable sensitivity) Adjustable sensitivity for detecting AC voltage of special frequency. Provided with one excellent cloth bag for conveniently-carrying. The meter has both manual range and auto range switching. Various accessories and pen-type for one-hand operation. Retractable tip for safe storage. Data holding and maximum value measuring and holding. Handsome LCD and automatic indication of functions and unit symbols. Auto power off and low battery indication. Full overload protection and dual insulation protection. Over-molding rubber case， shake-resistance， skid-proof and good touch-feeling.