Modbus RTU meters/sensors/devices can be used with VT336 and VT336POE monitoring units directly. Read Connecting Modbus RTU sensors to VT336 & VT336PoE.

Modbus RTU meters/sensors/devices can be used with VT325, VT335S, VT805, VT825 monitoring units using VT85 / Modbus extension board. Read Connecting "VT85 / Modbus extension board".

Modbus RTU meters/sensors/devices can be used with VT900, VT960 monitoring units using USB485 / Modbus to USB adapter. Read Connecting Modbus sensors using "RS485 to USB adapter".

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