Hi Vega

Sounds like you actually know more about the indicators than I do!

The transducers are a sort of rheostat I suppose, so probably similar to the one in the video.

The current taken by the system in the video is shown on the left hand display of the power supply – it looks like 50 to 60mA at 24V and around 10mA at 4.8V. 24V at 50mA is 480 ohms load.

If you parallel the two gauges (so 1 to 1 to 1 etc.) then they will read the same but will take twice the current from the transmitter, taking more current will make it run hotter but it may be that the device can take it – but feel the transmitter and check for that ‘hot’ smell! If the issue worries you, you can lower the supply voltage, as you can see in the video the voltage range can be quite wide.

Let us know if it all works!

Cheers
James