Suitable for use by electricians electronic engineers general industry and labatories en61010 1 cat iii 600v catii 1000v rated large high contrast lcd a single rotary selection and only 4 function buttons make them easy to use impact resistant rubber and abs plastic case with a flip out desk stand 34mm lcd display with large digits 61 segment bar graph and function indicators with backlight auto polarity indicator auto ranging with range hold data hold minmax recording mode fast b