Bosch GLM 250VF vs GLM 40 - Where are the differences?

Brand
Bosch
Bosch
Product name
GLM 250VF
GLM 40
Show all
Only differences
Distance measurement
Measuring range, to
Measuring range, to
250,00 m
Measuring range, to
40,00 m
Measuring range, from
Measuring range, from
0,05 m
Measuring range, from
0,15 m
Smallest measuring unit
Smallest measuring unit
0,10 mm
Smallest measuring unit
1,00 mm
Measurement accuracy (+/-)
Measurement accuracy (+/-)
31,12 mm
Measurement accuracy (+/-)
1,50 mm
Laser properties
Laser color
Laser color
Red
Laser color
Red
Laser diols
Laser diols
635 nm
Laser diols
635 nm
Laser class
Laser class
2
Laser class
2
Inclination measurement
Available
Available
Yes
Available
No
Range
Range
360 °
Range
-
Minimum measuring unit
Minimum measuring unit
0,20 °
Minimum measuring unit
-
Measurement accuracy (+/-)
Measurement accuracy (+/-)
0,10 °
Measurement accuracy (+/-)
-
Measurement functions
Memory for measured values
Memory for measured values
30
Memory for measured values
10
Area function (m²)
Area function (m²)
Yes
Area function (m²)
No
Room size (m³)
Room size (m³)
Yes
Room size (m³)
No
Summation of the values
Summation of the values
-
Summation of the values
Yes
Equipment
Data transfer (App, Bluetooth)
Data transfer (App, Bluetooth)
No
Data transfer (App, Bluetooth)
No
Destination Finder
Destination Finder
Yes
Destination Finder
No
Sound on/off
Sound on/off
Yes
Sound on/off
Yes
Signal tone
Signal tone
Yes
Signal tone
Yes
Vibration signal
Vibration signal
No
Vibration signal
No
Display
Touch
Touch
-
Touch
-
Colour display
Colour display
No
Colour display
No
Waterproof
Certification
Certification
IP54
Certification
IP54
Specifications
Weight
Weight
240 g
Weight
90 g
Length
Length
11.1 cm
Length
10.5 cm
Height
Height
3.7 cm
Height
2.4 cm
Width
Width
6.6 cm
Width
4.1 cm
Specifications, operability
Temperature, min.
Temperature, min.
-10 °C
Temperature, min.
-10 °C
Temperature, max.
Temperature, max.
50 °C
Temperature, max.
45 °C
Operating altitude, max.
Operating altitude, max.
-
Operating altitude, max.
2000 m
Battery
Number of batteries
Number of batteries
2
Number of batteries
2
Battery
Battery
AAA
Battery
AAA
Removable
Removable
Yes
Removable
Yes
Automatic switch-off
Automatic switch-off
Yes
Automatic switch-off
Yes
Switch-off time
Switch-off time
5 minutes
Switch-off time
5 minutes

Where are the differences?

Let's take the two laser distance meters GLM 250VF and GLM 40 the Make Bosch in the comparison and look at the differences.

measuring range / distance

The measuring range of a laser rangefinder is extremely important. The number describes the maximum distance the device can measure. For most devices the maximum distance can be derived from the name.

With a maximum distance of 250,00 m the Bosch GLM 250VF offers more measuring range than the Bosch GLM 40 with 40,00 m. Theoretically, the larger measuring range is of course better. However, if you do not need so much distance, the smaller Bosch GLM 40 is also sufficient.

The minimum distance is the Bosch GLM 250VF at 250,00 m. The Bosch GLM 40 can determine a minimum distance of 40,00 m for the measuring range.

The indicated measuring range usually refers to ideal conditions. Poor weather conditions can affect the measuring range. This includes fog, for example. This is interesting for use on construction sites. In home use, this usually plays hardly any role. Under bad conditions the possible measuring range is smaller.

Measuring accuracy

The better a laser rangefinder is, the more accurate the results. The differences here are in the range of a few millimeters.

With +/- 1,50 mm the Bosch GLM 40 has a lower measuring accuracy than the Bosch GLM 250VF with +/- 31,12 mm. In comparison the GLM 250VF performs better. Due to bad weather conditions the measuring accuracy can be worse. This is also the case with the measuring range.

Good rangefinders can output smaller steps in the measurement. Of course this also affects the accuracy of the measurement. The measurement results are output at the Bosch GLM 250VF in steps of 0,10 mm. Thus the device offers smaller steps than the GLM 40 of Bosch in comparison. There the smallest step is at 1,00 mm.

Measurement functions

Most devices offer even more than simple distance measurement. This includes area function, room function and summation.

In contrast to the Bosch GLM 40, the Bosch GLM 250VF offers an area function. You can have the area calculated directly at the measuring device.

One difference is the room function, which only offers you the Bosch GLM 250VF in this comparison. With the Bosch GLM 40 you have to determine the volume (m³) manually from your measured values. The danger of errors is greater here.

With 30 memory locations, the Bosch GLM 250VF offers you more storage possibilities for measured values than the Bosch GLM 40 with 10 memory locations.

Inclination measurement

You have a tilt measurement at the Bosch GLM 250VF. The Bosch GLM 40 does not offer this function. The tilt measurement allows you to determine angle sizes.

Accumulator and batteries

To save energy, both devices switch off automatically. The automatic switch-off time is 5 minutes for both measuring devices.

Relevant comparisons