Can anyone confirm if S_MULTIMETER and V_VOLTAGE are supported in Vera?

L_Arduino.lua indicates it is supported

Whereas Selecting a Controller, indicates it is not supported

Using

MyMessage msgVolt(CHILD_ID_VOLTAGE, V_VOLTAGE);

and

present(CHILD_ID_VOLTAGE, S_MULTIMETER);

The Multimeter device is created

but the values are blank.

The Vera log shows the 'Voltage' value is being sent with the correct value

50      06/11/17 14:25:48.875   luup_log:78: Arduino: Set variable: 1;0;1;0;38;4.79 <0x2ebbe680>
50      06/11/17 14:25:48.876   luup_log:78: Arduino: Setting variable 'Voltage' to value '4.79' <0x2ebbe680>
50      06/11/17 14:25:48.876   luup_log:78: Arduino: urn:micasaverde-com:serviceId:EnergyMetering1,Voltage, 4.79, 87 <0x2ebbe680>

Is it possible to get this to appear in the Multimeter device?

I came across this recently that may be suitable, with appropriate hozelock adapters?