The Bosch GLM 50-27 CG Professional is a laser distance meter designed for both professional users and DIYers who need an accurate and efficient solution for indoor or outdoor measurements. It is designed for ease of use and allows for fast results, making it much easier to work on renovations, installations, construction and installation tasks, and everyday tasks where measurement reliability is important.

Its main advantage is the use of a green laser line, which is significantly more visible indoors than standard red lasers (even in stronger daylight or over longer distances). With a range of up to 50 meters, it allows measurements even in larger rooms or outdoors, which increases the flexibility of use for different types of projects.

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Powered by a rechargeable lithium-ion battery, it is more practical to use, eliminating the need to replace conventional batteries – charging is done easily via USB and allows for several hours of continuous work in the field or at home. This functionality is especially useful for professionals who need a laser meter for larger projects or longer daily tasks.

Bluetooth connectivity allows you to wirelessly transfer measurements to your smartphone or tablet, simplifying data recording and documentation. This allows you to share data in real time with colleagues or use it directly in design applications, increasing productivity on the jobsite or in the office.

The combination of the measuring range, the increased visibility of the green laser line and the robust housing with IP65 protection ensures use even in dusty or damp environments. This means that the meter is ready for a variety of requirements – from home renovations, paving stones to professional use in the construction industry. For users who expect reliability and ease of use, the device offers clear advantages in everyday work.

It is important to know

With laser meters like the Bosch GLM 50-27 CG Professional, it is crucial to carefully consider your real needs in terms of measuring distance, intensity of use and the desire to store measurements digitally before making a choice. This model is especially useful for users who frequently take measurements in the field and want a digital record of data. Before buying, pay attention to whether the Li-ion battery and Bluetooth really bring you practical value for your tasks.

• Li-ion battery power is ideal for more frequent use, but if you only use the meter occasionally, the more demanding charging may be a minor inconvenience compared to replaceable batteries.
• A distance of up to 50 m covers most home and semi-professional tasks, but is not suitable for projects where very long measurements are required beyond this range.
• Bluetooth connectivity comes into its own if you frequently store or process data on your phone or tablet - if you won't be using this feature, it may be an unnecessary investment.
• The model is robust and suitable for field work, but in extreme temperatures or very demanding environments it is advisable to check additional protection requirements or certifications.
• When measuring over longer distances, we recommend that you consider the declared accuracy in addition to the maximum range, especially if every millimeter matters.

Source of editorial recommendations: general guidelines for product selection.

In practice

🏠 Home use and renovations

🟢 Very suitable for interior measurements, furnishing rooms and minor repairs where speed and convenience are required.

🌱 Working in the garden and around the house

🟢 Sufficient range for all common measurements around the home, at distances up to 50 m.

🛠 Field work and installation

🟢 Suitable for frequent use on construction sites or during assembly, especially due to its robustness and Li-ion battery.

📱 Digital storage of measurements

🟢 Bluetooth connectivity is useful in practice for users who like to record and export measurements to smart devices.

Answers to frequently asked questions

Is the Li-ion battery included and how is it charged?

Yes, the Li-ion battery is built-in and is charged via the appropriate connector, usually with the included cable.

Is the meter suitable for use outdoors in inclement weather conditions?

It has IP65 protection, which means it is resistant to dust and jets of water and suitable for basic outdoor work, but is not recommended for use in extreme conditions.

Can I automatically transfer my measurements to my phone?

If you use an app that allows you to connect via Bluetooth, you can transfer data directly to your smartphone or tablet.

What is the advantage of a green laser line in practice?

The green laser line is many times more visible than red in indoor and brighter rooms, allowing for easier and more accurate readings.

For whom does using the Bluetooth function not make sense?

If you don't store measurements digitally or need to transfer them to other devices, the Bluetooth feature doesn't add any additional value.

Description updated: August 2026

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