Bring a unit over from Ventaurio

If a Vallox recuperator is set up in Ventaurio, it can hand the unit over instead of you typing it in. Open its filters screen and tap the Filtaurio tile: the model, the day the filters were last changed and the unit's own countdown come across, and the add sheet opens here already filled in. Nothing is written until you press Save, and every field is still yours to correct.

The interval the unit reports is used for that machine instead of ours, so the date here agrees with the one on its own display rather than quietly disagreeing with it.