This Growatt TPM measures accurately in three-phase systems (3P3W/3P4W), with Class 1 accuracy for voltage, current and power. It supports export limitation and self-consumption, compatible with Growatt inverters. LCD display and RS485 for easy operation and data exchange. DIN-rail mounting, weighing 398 g. For wholesale solar panels ideal for commercial installations, focusing on reliable measurements at 50/60 Hz. Offers online monitoring and firmware updates. 2-year warranty.