... can provide meter ,voltmeter,ammter,power meter.... We can provide meter ,voltmeter,ammter,power meter.......Shape and hole cutout dimension ... , instal to the Electric Power Cabinet easily Can measure current, voltage, frequency, power factor, active power and reactive power. The decimal point ... CT,the secondary current 5A or 1A is standard.POWER METERWattmeters with built-in converter for 1 phase,3P ...