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📏 Measure smarter, work tougher, stay connected.
The Bosch Professional GLM 50-27 C laser measure is a rugged, IP65-rated tool designed for demanding jobsite conditions. Featuring Bluetooth connectivity and the MeasureOn app, it streamlines project documentation with cloud access. Its smart interface offers vibration feedback and animated help, supporting multiple measurement modes and saving up to 30 readings. Lightweight and ready to use with included accessories, it’s a must-have for precision-driven professionals.
















| ASIN | B08V5BV42G |
| Are batteries included | No |
| Batteries are Included | No |
| Battery Description | Alkaline, 1.5V, AA |
| Best Sellers Rank | 40,970 in DIY & Tools ( See Top 100 in DIY & Tools ) 37 in Laser Levels |
| Brand | Bosch Professional |
| Brand Name | Bosch Professional |
| Colour | Black |
| Country Of Origin | Malaysia |
| Customer Reviews | 4.7 out of 5 stars 11,199 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 04059952518824 |
| Included Components | Laser Measure GLM 50-27 C, App, 2x AA batteries, hand strap and pouch |
| International Protection Rating | IP65 |
| Item Dimensions L x W x H | 16L x 13.5W x 8.5H centimetres |
| Item Type Name | Laser Measure GLM 50-27 C |
| Item Weight | 0.17 Kilograms |
| Item weight | 0.17 Kilograms |
| Magnification Maximum | 8.0 |
| Manufacturer | Bosch Professional |
| Manufacturer Part Number | 0601072T00 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | GLM-50-27C |
| Product Warranty | 2 year manufacturer. |
| Sport | NSP |
| Sport Type | NSP |
| Water Resistance Level | Water Resistant |
J**9
Very good laser measure with Poor App
I have been very impressed with this laser measure. Compared with the 10+ years old Stanley TLM 130 it replaced, it is compact, lightweight and quicker to take readings. I particularly appreciate the better battery life and the inclusion of a tripod mount on the back. I regularly use laser measures to check construction drawings against new and existing building interiors and also to take site measurements/quantities for estimate preparation where drawings are not available. The red laser is clearly visible indoors, but I would not recommend this particular model for predominantly outdoor work. I would have liked the GLM50C to have a wrist strap to reduce accidental drops. Mine remains unscathed after a couple of unintended drops onto hard concrete but I don't think it is claimed to be "rugged". The GLM50C comes with an elasticated cloth belt case which is quite adequate. Initially, the device felt a bit slow to power up (actually just over 1 sec), but this may be no bad thing. I’ve not noticed any problems with accidental power-ons that constantly drained the TLM130's battery. The GLM50C takes two standard AAA batteries that are simple to replace however I’ve found that rechargeable batteries work very well. The rotatable colour display is very clear and the functions are intuitive and very easy to use but the standout feature is the bluetooth connectivity which enables measurements to be recorded remotely via a smartphone/tablet app. That said, the App (I've only tried the Android version 1.6.0) is incredibly frustrating. I know the bar for this type of App is pretty low, but considering this device has "Professional" and "Bosch" on the front, I hoped for better. The quick sketch floor plan builder is almost impossible to use on a small screen and even simple edit attempts result in insane (*) layouts being created. The app is (sometimes) easier to use with a tablet, but in practice I've found this a bit cumbersome out on site. There are bugs in the wall measurement functions (used to enter wall elevations), with the app insisting that an entered dimension must be wrong (eg a door opening, which the app considered wider than the wall). The ability to put dimensions directly onto a photo should be very useful, but this implementation is poor. Dimensions are difficult to position accurately and quite often one end of the dimension will stubbornly remain off screen. The magnified view of the target point "under your finger" would be great if it didn't stray out of sight so often. Frankly, the only useful part of the App for me is the simple measurement entry/storage/export. Single measurements can be initiated by either the GLM50C or from the App and ultimately exported as xls or pdf. Each measurement entry (grouped into a Project) is date/time stamped and can be renamed, although there's no facility to record GPS location nor select from (for example) predefined room names and measurement types which would have been so easy to implement. The GLM50C can store up to 30 previous measurements internally and this is plenty in my experience. This limitation does not apply to measurements stored with the App. The internal measurements are retained after a power-off and will even survive a battery swap. Tip: If you do decide to get a GLM50C, get yourself a cheap selfie-stick with a 1/4 inch standard screw mount to attach the GLM50C. Having greater reach and not having to press the button on the device makes all the difference. With practise taking measurements (via the smartphone app) will be simpler and quicker - even if it won't actually replace handwritten survey notes. Back to the GLM50C itself, there was really only one negative that I think will impact on the measurements I regularly need to take: I do wish it had a flip-out end-piece (like the Leica Distos) to allow taking diagonal dimensions into corners (especially since the GLM50C has a max/min function that's ideal for measuring into room corners!) The built-in functions are quite comprehensive (some seem more suited for "outdoor" measurement, so may not be used much), although I do wish that a 3D point-to-point measurement facility was provided somewhere in the range. Overall, although the current App is a bit rubbish, the GLM50C is thoroughly recommended as an "indoor" measurement device. (* I wanted to say Escher worthy, but that's a bad example - the App can't do stairs of any sort.)
W**4
Pocket Rocket
A laser measuring tool seemed like a handy gadget and a good idea that would make measuring floors for laminate and vinyl etc and walls for paper and paint quantities so much easier. I was aware that there are hundreds of similar tools on the market and so I set to finding one that was accurate, a trusted brand and not over priced. After going through the usual suspects I came across the Bosch tools and soon narrowed it down to the GLM 50C. Placed the order and it arrived on time as expected. This tool is brilliant, it has a Bluetooth option which allows the unit to be activated by the users mobile device. (When setting out alone for instance) Bosch have released an app for their Bluetooth units which allows users to set out plans of rooms to be measured, the user draws on the screen with their finger and the app squares the sketch then measurements can be added to the diagram. The app also imports photographs (to which dimensions can be added) There are other uses for the app but I’ve not ventured any further. The unit itself has numerous modes which will calculate square areas and room volumes, it even has a setting that allows setting out equidistant fence posts or other work that requires multiple set distances to be achieved. It even works as a spirit level and angle meter. It retains the last 30 measurements too. The only CON I have found so far is the case that is supplied. I find the case to be slightly small and it fits the unit very snugly. Because of this, it takes more than a moment to stow the unit with one hand when the case is on users belt. To sum it up.. I am more than happy with this unit, I love the Bluetooth connectivity and the options and additions it brings. The various modes on the unit and the ease of use have been both surprising and amazing. Great little device.
O**Y
Impressed
Currently fitting new wooden floors plus skirting boards, trim around windows and curtain rails (and doing the wife's job of shortening the curtains) and fed up with trying to stop my tape measure bending in the middle, coming unhooked, etc. If you have ever had to measure more than half a metre you will know what I mean !! Saw this little gadget on a deal and saw the accuracy of 1 mm and thought that's good enough for everything I want. In fact a lot better than I get trying to hold the tape straight. How right I was. My first thought after delivery was "It's a bit heavy". Turned out that was the manual. After the panic over a manual about 40mm thick. I then discovered it was in about 25 languages and the English was a few, not really needed, pages as its all a bit obvious. Just turn it on, point the laser and read the distance. Quick, easy and really accurate. A bonus is not having to write down or try to remember the measurement when I go into the garden to cut boards. Just read it off the display. OK, Once software gets involved all sorts of clever options are available such as area, volume, indirect (clever) measurements which are possible to work out without the manual but if all else fails and you are male, go somewhere private and look at the manual. I am just happy that I can take straight line measurements without needing my wife to hold the end of the tape. Oh and of course there is an "app'. I have downloaded it but not used it yet. The bottom line is that it's useful, accurate, easy to use and easy to keep in tool box. I probably would not have paid full price but now I have used it the full price is worth the expenditure. It does not replace my tape measure but its a really useful addition. I find the reviews of others help my buying decisions. If this has helped you please click the like so I know I am not wasting my time. Thanks
A**K
Good measurer, just watch the batteries.
Very good laser measurer, green laser can be seen from a good distance away, and the app thats comes with is useful. Only slight negative is that this burns through batteries when not in use, if I forget to take them out after measuring a property, and come back to it the next week they will be fully depleted, and thats with the settings reviewed as to bluetooth and energy saving etc.
S**O
Very impressed and glad I purchased this over the GLM80 model that was ...
Very impressed and glad I purchased this over the GLM80 model that was on offer for a similar price, and the cheaper DLE40 that was on offer for a great price at the time. The GLM 50C covers a max range of 50m, I didn't need a longer range as I'm only measuring detailed floor plans for residential buildings so all models would have been sufficient. The main benefits of this model over the 80 is the Bluetooth connectivity and colour screen, I wasn't sure if I'd use the bluetooth but it's makes the job notably quicker. So far I've tested it with my iPad 3 and Android GS6 and it's worked flawlessly with the official GLM app that supports this and the GLM 100C. I've found it best to draw a quick sketch in a 3rd party app such as Autodesk Graphic or a paint package and then output that as an image to use within Boschs app, it's then just a case of drawing a dimension line and pressing the scan button to take the measurement, once done I then go back to my office and manually transfer the details to my CAD application, so no messing around with a pen and paper. The other advantage over the 80 is the colour screen, this provides functions such as the tape measure which works well for marking distances from a point. The big advantage over the 40 is the angle measurements, this works like a spirit level in the main view and helps to ensure you're holding the device horizontal when taking measurements, and because of the flat sides you can also rest the device on a straight edge to assist when marking out. The main thing this doesn't have that the 80 has (apart from range and the rechargeable battery) is the additional pull out measuring point, this would be useful but I haven't found it a major problem, the top and bottoms flat so aligning it with an exposed edge then using the built in spirit level to ensure it's level seems to have produced accurate results. All in all I've been very please, I've made a lot of detailed accurate measurements far quicker and easier than using my old tape measure.
E**E
Does what it claims to do, happy to recommend
A bit expensive but it does everything it claims it can do. A very handy device for jobs like fitting curtain rails etc. Also like the built in spirit level feature. UPDATE: As much as the device worked fine, I returned it after 3 days due to a very strong and unpleasant odour from the device, its soft case and its box - strong smell of Germolene !!! UPDATE 2: I ordered another GLM 50-27 C to see if it also smelled strongly of Germolene.... The second arrived today (23rd July 2025) and I am happy to report that there is no odour from this one so will be keeping it. Believe Amazon spray some form of pesticides in some of their wharehouses and that could have been the cause of the smell from the first item - happy to be corrected on this ????
M**S
The Bosch Pro Measurement tool
I going to say that i have been looking for measurement tools for 2 weeks now an i saw a few, but the Bosch was very expensive, brought a cheap one for £21.99 and it could not recharge and the laser measurement was very wrong. Started looking at the Bosch 50c and check a lot of reviews so i brought it. I work in fabrication so i need a measuring tool with a very low tolerance level and this boy seem to have done the trick. My work tolerance level is 1mm, This measure works with angles and have a great spirit level also with control of back measurement and front measurement of the device, also have a brilliant colour display clear clean numbers recognition. The Bosch app which i download on Tab S am still running test on it still, just the let you know i use this GLM 50c every day for my work and still testing it out from my measuring tape which the Bosch keeps up with. It will take me over 3 months before I can actually trust the Borsch to take over from the tape measure but so far it's been accurate. This is over 1 month and a week now, even the welders ask me to borrow GLM 50c for checking there angles even though they have the tools. this device is 9 things roll up in one and it's very good so far. Forget the price 'just buy it'.
M**R
Definitely a worthwhile 'step up' from the PLR50C
Bought this to replace my Bosch PLR50C laser measure, which worked brilliantly for a little over a year and a half... and then I went to use it one day and the laser dot was blurred, there was a rattling noise inside (opened it up - seeing as it was out of warranty - to discover the focusing lens had come unglued) and consequently it was unable to measure anything. I thought I'd replace it for what appears to be the 'Professional' version as it was not considerably more expensive. On first appearances, it looks slightly smaller, it has a more rugged case, has more physical buttons (the PLR had a touchscreen) and it looks has mostly all the same functionality. Where it really scores over the PLR for me is that you can change the working units on this to feet and inches whereas the PLR only measured in metric (metres to three decimal places). You also have the option of mounting this on a tripod. And you can have a 'bubble level' permanently displayed along with the measurement which is really useful. It has a few more measuring modes over the PLR, such as 'incline height', 'wall area' and 'stake out', all of which work reasonably well... as does the app, when I tried them out of curiosity... although in all honesty, I have less of a need for these functions so can't really comment on their real effectiveness. Overall, I am really impressed. Beyond basic measuring, It's a definite step up from the DIY version. I only hope it doesn't suffer the same problem with the dislodged laser focusing lens.
S**6
Perfecto
Producto comprado. Lo primero q llama la atención es su tamaño es muy pequeño para todo lo q hace. Casi no pesa lo q facilita su uso. El tacto es muy agradable y soporta el agua pefectamente, probado. La pantalla es clara y se ven perfectamente tanto las mediciones como la info. La navegación por todas sus funciones básicas es muy intuitiva, mi abuelo de 97 años aprendio a usar lo básico en 20 minutos Probadas todas las características esta es mi experiencia: En el interior ningún problema, es preciso, el láser se aprecia perfectamente y da mucha información. En exterior la cosa se complica muchisimo, pero supongo q pasará con todos, de día en distancias cortas vale, pero 50m ni un alcón peregrino encuentra el puntito ;) un consejo para exterior fabricaros un poste guía con cartón etc para captar mejor el láser, y daros cuenta que a cuanta más distancia 1 milímetro en la base es mucho mayor en el destino. Con día claro Despues de mucha paciencia y tiempo logré encontrar el punto, distancia 30m, a más distancia no miré. En mí opinión buen producto no me arrepiento de comprarlo
G**I
Bom desempenho e precisão
Nota 10 para a Amazon, como sempre ajudando os clientes em todas as dúvidas. Ótimo produto, envio rápido, excelente desempenho para uso profissional, testado em uma medida de 30m de comprimento a precisão foi de 100%, em uma medida de 48m a previsão foi de 100% em uma medida de 50m a precisão foi de 99,4%. Custo benefício: Para uma trena de precisão até 50m achei o valor meio salgado, mas para quem busca praticidade e rapidez eu recomendo, pois essa trena possui varias funções se comparando com uma do mesmo modelo comum. Tecnologias: Ainda em fase de testes, o bluetooth funciona perfeitamente, as funções de níveis 100%, medições em diferentes tidos de posição 100% Recomendo, produto original BOCH
A**D
Excellent device
Very well-known brand, and it worked very well for me. One problem is that you need to change the AA battery frequently otherwise it is a great product.
L**S
Qualidade
Produto de ótima qualidade!
E**D
ممتاز
ممتاز
Trustpilot
2 weeks ago
1 month ago