AUTO RANGE - The convenient auto-ranging operation allows you to select the right measurement range. The autoranging function helps you get precise measurements, every time. DATA HOLD - The Data Hold function allows you to freeze the current display so you can take notes of the current reading. OVERLOAD PROTECTION - 200A full range overload protection for additional safety during measurement AC CURRENT - Safely measure AC currents with the clamp, so you don?t have to strip any wires BIG LCD DISPLAY - Features bright white backlight and large digits for easy reading even in dark and dimly-lit testing environments