TCM-T20 Digital Three Phase Volt Meter with Built-in Selector Switch with Power Supply 80-270V AC/DC, Compatible for LV and MV Panels, It has RS-485 communication Modbus RTU. Measurements 3×230/400V, 100V-9999KV V1/V2/V3, V12/V23/V31 and Frequency Measurement Power Supply 80-270V AC/DC Limit alarm flashing function 30～120: Over the threshold value, unit % 0～9999 kV Primary value of voltage transformer and Secondary voltage 0～690 V Baud Rate 2400-9600, RS-485 Communication, Modbus RTU Size 96×96 and width 34 mm Door Mounted. https://drive.google.com/file/d/13EQC9nP-kfa355dBq6_SPB5JuM9x1ltC/view?usp=share_link
