DV300 Series three-phase digital power meter of high quality, low price 

 DV300 Series three-phase digital power meter for continuous measurement of the distribution system and monitoring. Instrument can measure true RMS voltage, current, active power, reactive power, apparent power, power factor, frequency, active power, reactive power degree. Analog output for the DCS system or industrial control equipment. 
 Features 
 Measuring three-phase power parameters; 
 Electricity metering; 
 High-definition LCD display; 
 Quantitative send analog output; 
 Power supply voltage: 100 ~ 240Vac (± 10%) 50/60Hz, 100 ~ 300Vdc (± 10%); 
 Dimensions: 96X96X73mm. 

 Feature List 
 DV301-phase voltage 
 DV302 three-phase current 
 DV322-phase voltage three-phase current 
 DV324 reactive power active power factor 
 DV327-phase voltage three-phase current active power reactive power 
 DV330-phase voltage three-phase current active power reactive power, apparent power factor frequency active power reactive power