See current Omlet tunnel modules, window interfaces and enclosure options.
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What the system actually does
Omlet combines modular tunnels, stands, junctions and towers so a cat can travel between the home and an outdoor catio. Window boxes and cut-to-size window boards can create entry points without permanently leaving a window open.
The system is therefore more about controlled routing than electronic authentication. That distinction matters when comparing it with microchip or motorized doors.
Window and flap options
Omlet sells a window-board option with a four-position cat flap. The flap can be open both ways, locked, entry-only or exit-only.
If you already have another compatible cat flap, the tunnel can also connect to that access point. This gives owners flexibility to combine physical containment with a separate selective-entry system.
Plan the complete route first
Measure the window or wall interface, tunnel path, elevation changes and final enclosure before ordering. A modular system is useful only when the complete route works in the real space.
Also consider cleaning access. Outdoor tunnels collect debris and need enough clearance for inspection and maintenance.
Best fit
This is best suited to indoor-cat households that want fresh-air access while reducing free roaming. If the priority is simply letting a dog through a door on demand, a dedicated electronic pet door is the more direct category.