Digital panel Meter For Line frequency 50Hz To 400Hz

Digital panel meters for reading line voltage frequency. 50 to 400 Hz and 75 to 300 Ac volts.

for line voltage of 75v to 150v ac use pin 7 and 2 for power and for voltage above 150v to 300v ac use pin 2 and 3

need cutout of 55mm x 95mm

unit size is 94mm x 54mm x 116mm excluding the pins