The MT4Y/MT4W series compact digital panel meters are available in various input and output options, allowing flexible application in diverse environments. The units can display measured values between -1999 and 9999, and features various user-friendly functions including high/low-limit display scale, AC frequency measurement, zero-point adjustment, and PV transmission output scale function. The MT4Y series meters are DIN W 96 x H 48 mm and the MT4W series meters are DIN W 72 x H 36 mm in size.