Voltage Data Logger Voltage Range 0 to 30VDC Voltage Accuracy +/-1 Percent 1 Voltage Channels Current Range 0 to 30VDC True RMS No Single Phase Power Source (2) AA Batteries 32 510 Readings Recording Capacity Voltage Logging Yes Current Logging Yes Neutral Current Logging No Voltage Event Logging Yes Power Logging Yes Total Power Logging No Energy Logging No Flicker Logging No Voltage Harmonics Logging No Current Harmonics Logging No Interharmonics Logging No