For RS/RC Models
Robomow RS and RC can handle a narrow passage of 3.3ft/1m (4ft/1.2m for RS models) and wider. The length of a narrow passage can be up to several meters.
If the Narrow Passage is wider than 6.5ft (2m), and you want Robomow to mow the area inside the Narrow Passage, you can set the perimeter wire in a way that allows Robomow to mow inside the Narrow Passage but prevents it from crossing between the zones.
For RX Models
Robomow RX can handle narrow passages of 1.9ft (57cm) and wider. The distance between the perimeter wires in such passage should be at least 0.5ft (15cm).