Germany
IP ratings and drop tests, and one figure they keep leaving out
The professional line is the only brand on this site that treats survival as a published specification.
Enclosures. The GLM 40-31 states IP 65 and a 1.5 m (5 ft) drop onto concrete; the GTC 12V-450-13 thermal camera states IP54 and 2 m (7 ft); the GMS 120-27 detector states IP 54 with a shock-absorbing housing. No other brand here publishes those numbers at all, and they are what separates a tool that lives in a bag from one that lives in a drawer.
Accuracy figures. The GLM 40-31 distance meter, the GTC thermal camera and the GMS detector all omit the number that governs what they are for — while the cheaper consumer Bosch tools publish theirs. That is the recurring criticism of this brand across our reviews, and it is the same one every time.
The GMS 120-27 detector, for the LED ring around the marking hole. It is the only detector here that puts the indication where the pencil goes.
± 0.3 mm (0.01 in)/m stated · IP65 · dual power · target plate and tripod included
The tightest published accuracy in this hub at ± 0.3 mm (0.01 in)/m, in an IP65 rubber-armored body that runs on a Li-ion pack or on AA cells, supplied with a mount, a target plate and a tripod.
Best for: Work where the line has to be right and the tool has to survive the site — and where two lines are all a datum needs.
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.
Metal, live cable and timber · three-color LED ring · center indication · IP54
A site-rated scanner that identifies which material it has found and rings the marking hole with a three-color LED — red on the object, yellow approaching, in an IP54 rubber housing.
Best for: Repeated drilling on site, where finding the center of the stud quickly matters more than reading a depth.
≈ $99
256 × 192 px · −20 to +450 °C (842 °F) · IP54 · 2 m (7 ft) drop · dual power
A camera that quotes 256 × 192 with no upscaled figure beside it, in an IP54 body rated for a 2 m (7 ft) drop, running on a 12 V Li-ion pack or AA cells.
Best for: Site use, where the camera shares a bag with other tools and has to work on the first press.
12–1000 V · self-test function · IP65
A 1000 V two-pole tester with a self-test function that checks the integrity of the instrument itself, in an IP65 body.
Best for: Site work where the tester lives in a bag and where 1000 V is in scope.
≈ $108
A target plate aimed at laser distance meters rather than line lasers — a different job, and one that most target plates are not sold for.
Best for: Long measurements with a distance meter, where the dot has to land on something you can see.
