
Stairlifts
The most compact monorail in the world
Color — Taupe
The product
The Otolift Modul-Air Smart adapts to every stair type. Thanks to its ultra-compact 60mm monorail – the most compact in the world – your handrail stays in place in most cases and your staircase remains safely walkable.
Features
The seat automatically turns to the landing at the top of the stairs, so you can always get on and off safely and easily.
The smart display on the armrest is a unique feature. On this display, you can see the live status of your stairlift.
The Modul-Air Smart is very compact, so your staircase stays safe. It is easy and quick to fold and unfold.
Thanks to the modular character of the Modul-Air Smart, your stairlift can be delivered in 2 to 3 weeks.
Our Reverse Drive Technology system allows the seat to move partially or fully in reverse. Even in very narrow staircases, your knees will never hit the wall.
On the version up to 125 kg, the rail is usually glued onto the steps — no drilling, fully reversible. Some wooden or concrete staircases need a screwed fixing. The version up to 150 kg is always screwed into the steps. Our technician confirms the right method during the free home visit.
Capacity
The Modul-Air Smart now also comes in a version up to 150 kg: same seat, same 6 cm rail, with a redesigned drive unit and a reinforced steel rail. Only some staircase configurations differ.
| Capacity | Up to 125 kg | Up to 150 kg |
|---|---|---|
| Seat, 6 cm rail, options, colours | Same | Same |
| Fixing | Screwed, plate or glued, depending on the stairs | Screwed into the steps only (no glue, no plate) |
| Very tight turns | Possible | Not the tightest radii |
| Rail start at the bottom | All starts, including on the first step | No first-step or short start |
| Finish at the top | Horizontal or inclined | Horizontal only |
| Rail incline | Up to 75° | Up to 75°, above 66° only on short sections |
| Standard and testing | EN 81-40 | EN 81-40, tested at 375 kg (2.5× the load) and over 10 years / 250 km |
During the free home visit, we check whether your staircase allows the 150 kg version.
FAQ
Completed installations
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Installation process
Installation of the Modul-Air Smart begins with a free home visit by our technician, who takes exact measurements of your staircase. The installation is generally completed in a few hours, up to one day depending on your staircase configuration, and requires no structural modifications. Delivery time: 2 to 3 weeks.
Financing & Care Insurance

In Luxembourg, Care Insurance may contribute to a technical aid after the AEC assessment. Any amount covered depends on the decision issued. Our team supports you with the application steps.
Learn more about care insurance