Functions

* With low power and white LDC or 3 Red LED display, which may be well visible in any somber space;
* Measuring 30 parameters on AC electrical network:
AL1, AL2, AL3, VL1, VL2, VL3, VL1-2, VL2-3, VL3-1, Fr,
PL1, PL2, PL3, PL,QL1, QL2, QL2, QL, SL1, SL2, SL3, SL, PF1, PF2, PF3, PF, imp & exp kWh, L & C kvarh
* With RS485 interface to connect master device, slave address & baud rate may be programmable;
* Programmable CT, PT ratio and wiring mode, it may be used on different AC networks;
* With plug-in connectors, easy to wiring;
* With StandardeL PC software, the user may easily connect and read SPT660 data by computer;