The M4NS/M4YS digital scaling meters are loop-powered, with power supplied by the loop current, and does not require external power source. The meters can display measured values between -1999 and 9999, and feature various user-friendly functions including high/low-limit display scale, decimal point setting, input high/low-value correction, display peak value monitoring and more. The M4NS series meters are DIN W 48 x H 24 mm and the M4YS series meters are DIN W 72 x H 36 mm in size.