Stated accuracy matters less than how you brace the back edge · review
The only meter on this shelf whose range and accuracy are published in feet and inches rather than meters and millimeters.
What the figures leave us with A simple, honest two-button meter at sixty-three dollars, and the only one on this shelf that speaks imperial: a hundred feet, a sixteenth of an inch, fractions or decimals, with a rounding button nothing else here has. For interior work measured in feet it is the easiest of these to read. What it does not publish is an ingress rating or a reference edge, and the second of those is the number the hub above says actually moves a reading.
NO ingress rating. NO reference edge. No tripod thread. No area or volume modes.
Which is the whole character of it.
The four published meters on this shelf: 20 m (66 ft) at ± 3 mm (0.12 in)/m, 50 m (164 ft) at ± 2 mm (0.08 in), 100 m (328 ft) at ± 1.5 mm (0.06 in), 100 m (328 ft) with Bluetooth.
This one: a hundred FEET, to within a SIXTEENTH of an INCH.
A sixteenth is about 1.6 mm (0.06 in), so the accuracy sits at the fine end of the band the introduction above describes.
The range does not. A hundred feet is about thirty meters — the second shortest reach on this shelf, and the only figure a buyer has to convert before comparing it.
Which nothing else here publishes.
It steps the result to a chosen fraction, from a half inch down to a thirty-second.
It exists because of how imperial work is cut. A reading of 94.3 inches is not a mark anybody makes. Ninety-four and five sixteenths is.
The risk is the mirror of the benefit: rounding can swallow what you were measuring for. Set to 1/2 inch, an out-of-square door frame reads square.
And it is the number the hub above cares most about.
“The one that actually moves a reading is the reference edge — measuring from the back of the housing, the front, or a fold-out stop changes every figure by the length of the body.”
No reference edge is named here. No fold-out stop. No tripod thread.
The body is some ninety-nine millimeters long. A reading taken with the front pressed to a wall, on a tool set to the back, is out by about four inches — sixty times the stated sixteenth.
This shelf’s introduction names three numbers a laser meter is bought on: accuracy, maximum range, and the ingress rating that decides whether it survives a site.
This page publishes the first two and not the third.
Two meters on this shelf state IP54. One states IP65 with a 1.5 m (5 ft) drop rating.
This one states nothing, and it is sold as a site tool.
Because of four words in its title: “with 2 AA Batteries”.
The American relevé for instrument batteries returned nine lines and NOT ONE battery — two battery testers, two battery compartment lids, an acid hydrometer, a pupillometer, a digital caliper, a five-hundred-dollar sound calibrator, and this.
It is the only one of the nine that had a shelf of its own to go to.
On sale at around 63 € on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 8 October 2026. The live price is at the top of the page.
| Stated dimension or range | 100 feet, stated — about 30 meters (98 ft). Every other meter on this shelf publishes meters: 20 m (66 ft), 50 m (164 ft), 100 m (328 ft) and 100 m (328 ft). This is the second shortest reach here, and the only range a buyer has to convert before comparing it with the rest |
|---|---|
| Stated accuracy | ± 1/16 inch, stated — roughly ± 1.6 mm (0.06 in). This shelf's introduction says accuracy is typically stated as ± 1.5 mm (0.06 in) to ± 3 mm (0.12 in), so this figure sits at the fine end of the band it describes. It is also the only accuracy on the shelf given as a FRACTION, which matters when you compare it: the published rivals read ± 3 mm (0.12 in)/m, ± 2 mm (0.08 in) and ± 1.5 mm (0.06 in) |
| Ingress protection | NOT PUBLISHED. This shelf's introduction names the ingress rating as one of the three numbers a laser meter is bought on, and this page gives no IP figure at all. Two meters on this shelf publish IP54 and one publishes IP65 with a 1.5 m (5 ft) drop rating; nothing here says what this one survives |
| Reference and mounting | NOT PUBLISHED. No reference edge is named, no fold-out stop is mentioned, no tripod thread is listed. This shelf's introduction calls the reference edge "the one that actually moves a reading" — measuring from the back of the housing rather than the front changes every figure by the length of the body — and this is the one thing the page never settles |
| Display | A backlit display with large icons, "brighter than its predecessor, the GLM20", stated to be readable in dark areas. Bosch's own longer description adds a big-number mode and upgraded contrast. The comparison is to its own older model rather than to anything else |
| Functions | Two buttons: one measures, one ROUNDS. The rounding button steps the result from 1/2 inch down to 1/32 inch, which is a function nothing else on this shelf publishes. Units are meters, feet and inches, with fractions or decimals. No area, volume, Pythagoras or stacking modes are listed — the meter on this shelf with seven measuring modes is the GLM 40-31 |
| Supplied | Two AA batteries. Those four words in the product title are the whole reason this line was relevéd on the instrument-batteries shelf, where none of the nine lines was a battery. Laser class is stated: Class II, 635 nm, under 1 mW |
| Amazon reference | B0C76CPGC7 |
| EAN | 0000346809336 |
At $63, it is the 2 cheapest of the 3 models in this category published here.
A sixteenth of an inch is about 1.6 mm (0.06 in), so it sits with the finest figures published here — the shelf's other meters state ± 1.5 mm (0.06 in), ± 2 mm (0.08 in) and ± 3 mm (0.12 in) per meter. The catch is in how the figures are built. A flat ± 1.5 mm (0.06 in) is the same at two meters and at ninety; a per-meter figure grows with the distance. Bosch publishes a flat fraction, which reads as a constant, but does not say whether it holds across the full hundred feet. That is the question to put to the seller.
The page does not say, and on a laser meter that is the omission that costs you. This shelf's introduction explains why: measuring from the back of the housing, from the front, or from a fold-out stop changes every reading by the length of the tool. A pocket-format body is some ninety-nine millimeters long, so a figure taken with the front against a wall when the tool is set to the back is out by roughly four inches — sixty times the stated accuracy. Before trusting the first reading, measure a known length and see which end the number agrees with.
It steps the displayed result to a chosen fraction, from a half inch down to a thirty-second. Nothing else on this shelf publishes that function, and it exists because of how imperial work is cut: a reading of 94.3 inches is not a mark anybody makes, while 94 and five sixteenths is. The risk is that rounding hides the thing you were measuring for. Set it to 1/2 inch while checking whether a door frame is square and the out-of-square can vanish into the rounding.
Same category, nearby prices, between measuring instruments. What remains is the specifications every one publishes — half empty, a column is no use.
| Model | Price | Stated dimension or range |
|---|---|---|
| Bosch Laser distance meter, 100 ft | $63 | 100 feet, stated — about 30 meters (98 ft). Every other meter on this shelf publishes meters: 20 m (66 ft), 50 m (164 ft), 100 m (328 ft) and 100 m (328 ft). This is the second shortest reach here, and the only range a buyer has to convert before comparing it with the rest |
| HANMATEK Laser distance meter, 100 m (328 ft) | $26 | 100 m (328 ft) range |
| Leica Laser distance meter with Bluetooth | $220 | 100 m (328 ft) range |
Details checked on October 8, 2026.
Interior work measured in feet and fractional inches, where a rounded figure is what goes on the cut list
Amazon reports what buyers took in the month before this page was last checked: at least 4,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
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.
IP 65 · 1.5 m (5 ft) drop rating · 7 measuring modes · color display
The site-rated meter of this hub: Bosch Professional states IP 65 and survival of drops from 1.5 m (5 ft) onto concrete, with seven measuring modes and a color display. The accuracy figure is not in the listing.
Best for: Anyone whose meter lives in a bag with other tools rather than in a drawer.
20 m (66 ft) range · ± 3 mm (0.12 in)/m stated · one-button operation
A deliberately minimal meter: one button, a 20 m (66 ft) range and a stated accuracy of ± 3 mm (0.12 in)/m. It is the shortest-range meter in this hub and the easiest to hand to somebody who has never used one.
Best for: Somebody who wants a room measured without learning a tool, and will never need the far end of a car park.
100 m (328 ft) range · ± 1.5 mm (0.06 in) stated · IP54
The tightest accuracy figure published in this hub — the maker states ± 1.5 mm (0.06 in) — paired with a 100 m (328 ft) range, at a third of the price of the Leica that matches that reach.
Best for: The best-published specification per euro in this hub, for someone who measures long distances and does not need a documented workflow.
≈ $26
