Collection: Voltage Transformers

Voltage Transformers (VTs) provide a reference voltage and phase information to IoTaWatt so that real power (what is recorded by the meter) can be measured.  These are UL Listed low-voltage AC wall transformers.  They are used exclusively as a reference and do not power the IoTaWatt.

The IoTaWatt W14-NA comes complete with the necessary voltage transformer for standard 120V service in North America.

I'm currently working to secure a source of compliant transformers for 230V Euro plug. 


1 product