The frame decides whether the vial still tells the truth in a year · review
A 40 cm (15.7 in) level specified for gradients rather than for level: a curved horizontal vial with 2% fall control, plus a vertical vial with a viewing window for reading verticals from the side.
What the figures leave us with Buy it for the fall, not for the level. The 2% vial is the reason it exists and the reason to choose it.
Most levels are sold on how level they are. This one is sold on how precisely it can be not level.
A curved horizontal vial with 2% gradient control, plus two vertical vials, one of which has a vertical-view window. A reinforced aluminum frame with removable shock-proof end caps, stated to damp impacts. Anti-slip caps with a honeycomb structure, described as preventing slipping and allowing one-handed work while marking. PRESCH positions it for paving and terrace construction.
A fall can always be set by measuring: drop so many millimeters over so many meters, with a level and a packing piece. It works and it is slow, and every re-check repeats it. A vial with a gradient mark reads the fall directly, the way the horizontal vial reads level — which turns a two-tool operation into a glance.
For level work this listing does not tell you how level. There is no millimeter-per-meter value anywhere in it. That is a real gap for a general-purpose level, and less of one for a tool bought specifically to set falls, where the gradient vial is the specification.
No such listing: the American Amazon shop answers the reference with a search box rather than a page.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
| Amazon reference | B0FGJFGFX3 (identical on 5 markets) |
|---|---|
| EAN | 4260465133477 |
| Stated dimension or range | 40 cm (15.7 in) |
| Reference and mounting | curved horizontal vial with 2% gradient |
| Body and fittings | vertical-view window |
Surfaces that must shed water are laid to a fall, commonly around 2%. A curved vial with a marked gradient position lets you set that fall directly instead of by measuring a drop over a length. PRESCH states 2% control on the horizontal vial.
Not in this listing. It describes the highest precision and names the vial configuration, but gives no millimeters per meter. The Bosch and Stabila levels in this hub publish 0.5 mm (0.02 in)/m; this one does not.
A second window on the vertical vial that lets you read it from the side. On a stud or a door frame, reading from directly above is often impossible, and this is what that window solves.
7.7/ 10
Buy it for the fall, not for the level. The 2% vial is the reason it exists and the reason to choose it.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.
Details checked on August 31, 2026.
Paving, terraces and anything that has to run away from a building rather than sit level.
Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
20 cm (7.9 in) · 1 mm (0.04 in)/m stated · two vials · rubber end bumpers
A 20 cm (7.9 in) pocket level with ground bearing faces, a stated accuracy of 1 mm (0.04 in) per meter and rubber bumpers at both ends. The loosest published figure here, in the smallest and cheapest body.
Best for: The level that lives in a drawer or a kitchen cupboard for hanging pictures and checking appliances.
Three levels · ± 0.5 mm (0.02 in) stated · ± 0.75 mm (0.03 in) turn-over · three vials each
Three levels at 40, 60 and 100 cm (39.4 in), and the only entry in this hub that publishes a turn-over figure — ± 0.75 mm (0.03 in) — which is the number that describes whether a level is telling the truth.
Best for: Equipping a workshop from nothing, where owning the right length matters more than owning the best one.
60 cm (23.6 in) · 0.5 mm (0.02 in)/m stated · V-groove · two marking sliders
A 60 cm (23.6 in) aluminum level stating 0.5 mm (0.02 in)/m, with fluorescent vials, a double metric scale that turns it into a rule, a V-groove for pipes, and two sliders for marking leveled points.
Best for: The general-purpose level for someone who would otherwise carry a level and a rule.
