Hey,
I have a problem with the voltage monitoring on the Routerboard 433AH:
The command /system health print shows nothing (only an empty row) and Winbox displays a Voltage of 0.0V 
Anyone know this problem?
I’m using the version 5.5 of TouterOS
check specifications, it doesn’t have any voltage sensors: http://routerboard.com/RB433AH
Ah it was a 411AH Box 
On the 433AH it works now…
good to hear, got me worried 