Bosch Professional laser measure comparison

It is important to use a device that is well suited to the type of measuring task in hand. So, before trying to identify which is the best Bosch laser measure for you as a professional, consider whether you are likely to be dealing with

  • measurements of up to 30m, 50m, 120m, 150m or 250m
  • measuring environments that are cramped
  • tall buildings or inaccessible measuring points
  • measuring on your own
  • demanding documentation requirements

Bosch Professional laser measure comparison by types of use

All Bosch Professional laser measures have a clear display with easy-to-navigate options. As you would expect of equipment used on site, they are also resistant to dust, splashes and impacts. In addition to these shared features, each of the models is designed for specific types of use.

To begin with, the Bosch GLM 30 Professional provides measurement accuracy of +/- 2mm for distances up to 30 metres. As you will see, the names of all the Bosch Professional laser measures tell you the maximum range they were designed for. The Bosch GLM 30 Professional is a compact, cost-effective laser measure, designed for ease of use. You can take a measurement with just one button push, and the device will even add up the values for you if required.

The Bosch GLM 150 Professional measure not only handles distances up to 150m but also provides accuracy down to a single millimetre. In general, it is designed for indoor situations. For example, it has a pin that can be extended and positioned in hard-to-reach places such as corners. The end of the pin is taken as the starting point for your measurement, ensuring greater accuracy. In addition, the Bosch GLM 150 Professional allows easy calculation of the length of a sloped ceiling.

The Bosch GLM 250 VF Professional is the Bosch Professional laser measure with the longest range. 250 metres, even outside, is no problem. To ensure that you get an accurate measurement at such distances, the device has a viewfinder on the side which can be used to zero in on the measuring point. This makes the device very useful for measuring tall buildings and structures that cannot easily be approached – a job that is made even easier by the built-in functions for calculating height from distances and angles.

So, as you can see from this Bosch Professional laser measure comparison, there are devices in the range with features that make ideal for certain types or use: indoor, outdoor or quick and simple measurement.

Watch this video to learn more about the features of the Bosch Professional laser measure GLM 150 Professional

Laser measures that work with our Bosch Professional Measuring Master App

Two of the top-five laser measures from Bosch Professional – GLM 50 C Professional and GLM 120 C Professional – are given an extra dimension through integration with an app. The Measuring Master App is a handy piece of software that can be downloaded to your mobile phone or tablet for free. It offers rich functionality for documenting measurements and performing calculations with them.

The two compatible laser measures connect with the app via Bluetooth. Only a couple of screen touches are required to set up the connection.

Having created an image or plan in the app, the Bosch GLM 50 C Professional or Bosch GLM 120 C Professional can be used to add measurement values. But the devices also have their own built-in suite of measuring capabilities, including calculation of height from distances and angles, marking off the same length several times over and measuring a gradient.

As a longer-range device, the Bosch GLM 120 C Professional has a screen that can act like a camera and zoom in on distant measuring points to improve accuracy.

Learn from our tutorial how to connect the Bosch GLM 120 C Professional with the Measuring Master App

Compare Bosch laser measures at a glance

For a straightforward Bosch Professional laser measure comparison, you can refer to the headline facts and figures in this table.


  Range  Accuracy  App integration  Power source 
GLM 30 Professional 0.15-30m+/- 2mmNo2 x 1.5V LR03 (AAA)
GLM 50 C Professional 0.05-50m+/- 1.5mmYes2 x 1.5V LR03 (AAA)
GLM 120 C Professional 0.08-120m+/- 1.5mmYes1 x 3.6V Li-Ion battery (3120 mAh)
GLM 150 Professional 0.05-150m+/- 1mmNo4 x 1.5V LR03 (AAA)
GLM 250 VF Professional 0.05-250m+/- 1mmNo4 x 1.5V LR03 (AAA)