The Autonics MT4 series panel meter is a super version panel meter with various functions such as AC frequency measuring function, zero adjustment function and transmission output scale function. This series is the super version of panel meter which realizes -1999 to 9999 max display range, wide power supply range and various output option selection. The MT4 series is available in two sizes. The MT4W (W96×H48mm) and the MT4Y (W72×H36mm).