... Measure- Measurement: VL1, VL2, VL3,AL1, AL2, AL3, F,∑P, P1,P2,P3, ∑Q, Q1,Q2,Q3,∑S, ... : < 0.2VA- Thermal drift: <200ppm- Precision: 0.5 (F: 0.05Hz; kVar: 1)- Power supply: AC/DC 85 ~ 270V ... % ~ 95% (no condensation) - Altitude: < 2500m 3. Options- Communication (/C) :RS485 (Modbus-RTU); 1 start bit, 8 data bit, 1 ... ), one for kWh, another for kvarh- Multirate kWh (/F) up to 4 rates and 8 time zone in one ...