Bosch GRL 300 HV Professional Rotation/ Rotary Laser


In stock



  • Easy to operate thanks to one button per function, and self-explanatory display
  • Easy to set up in both the horizontal and vertical modes due to automatic self-levelling of 8 % (± 5°)
  • The shock warning function, which can be switched on and off, prevents levelling errors in the event of shocks and vibrations
  • Two large, easy to grip carrying handles
  • Robust construction – IP54 ensures splash water/dust protection for years of dependable operation
  • High Accuracy - providing an accuracy of ± 0.3 mm/m and has a range of up to 300 m diameter
  • USES: The measuring tool is intended for establishing and checking exactly horizontal height profiles, vertical lines, alignments and plumb points.
  • The measuring tool is suitable for indoor and outdoor use.

In stock


The Bosch Rotation laser GRL 300 HV Professional allows for easy handling with horizontal and vertical self-levelling.

It is designed for checking exactly horizontal height profiles, vertical lines, alignments and plumb points. The GRL 300 HV Professional’s horizontal and vertical laser lines and plumb points offer optimal visibility of up to 60 m diameters without a receiver and 300 m diameter with a receiver.


BOSCH Professional Tools & Accessories

Bosch Professional Power Tools have been developed with speed, reliability and flawless execution in mind to help users complete the most arduous tasks professionally. It provides a complete solution for every project by having the needed accessories, a mobility system for transportation and storage, service offers and mobile solutions for your smartphone.

Users are assured of full control with this value proposition and results that would exceed customers’ expectations.

BOSCH Calibration Service   

Bosch calibration service ensures extremely high levels of precision in your measuring tools are maintained. Anyone who uses construction laser and levels has to be sure that they function reliably and that they meet the required standards. For this reason, we recommend an annual inspection of your instruments by the Bosch calibration service – which is fast, precise and reliable.

Bosch service centre with its highly qualified personnel and quick lead times is available to you whenever you need it. The calibrations meet the requirements of ISO 9 001(Control of inspection, measuring and test equipment). You will receive a certificate including documentation of all measured values.


Your Calibration Service

  • Instrument is cleaned
  • Measuring accuracy is inspected
  • If necessary: instrument is adjusted
  • Calibration certificate
  • Instrument is returned within 5 working days

Additional information

Weight 1.800 kg
Dimensions 190 × 180 × 170 mm

Rotation Laser



Model Number:

0 601 061 501, GRL 300 HV

Laser Diode:

635 nm, < 5 mW

Laser Class:


Working Range with Laser Receiver, Value:

up to 300 m (Diameter)

Working Range without Receiver:

up to 60 m (Diameter)


2 lines / 2 points

Levelling Accuracy:

± 0.3 mm/m (at 30 m)

Slope Function:


Operating Temperature:

-10 – 50 °C

Storage Temperature:

-20 – 70 °C

Self-Levelling Range

± 5° (8%)

Levelling Time:

15 sec

Tripod Thread:


Colour of Laser Line:


Compatible Laser Receivers:

LR 6, LR 7

Dust and Splash Protection:

IP 54 ( dust and splash-proof)

Power Source:


Power Supply:

NiMH battery pack, 2 x 1.5 V LR20 (D)

Battery Operating Time (max):

Rotation Speed: 150, 300, 600 rpm




• For marking, always use only the centre of the laser point or the laser line; laser point & laser linewidth change with distance
• Laser Viewing Glasses (Accessory); filter out the ambient light making the red light of the laser appear brighter for the eyes
• Working with the Tripod (Accessory); offers a stable, height-adjustable support surface for measuring.
• Working with the Universal Holder (Accessory); enables one to secure the measuring tool on vertical surfaces, pipes or magnetisable material.
The universal holder is also suitable for use as a building tripod and facilitates height adjustment of the measuring tool.

Warranty & Support:

1-year warranty

What’s Included in the Package:

• 1 Unit Bosch GRL 300 HV Professional Rotation Laser
• Battery compartment (1 608 M00 05D)
• Carrying case
• Charger set with adapter (1 600 A00 1W3)
• Holder also available separately as an accessory (1 608 M00 70F)
• Laser Receiver LR 1 Professional (0 601 015 400)
• Laser target (red) (1 608 M00 05C)
• Laser viewing glasses (red) (1 608 M00 05B)
• Remote control RC1 Professional (0 601 069 900)
• Universal mount WM 4 Professional (0 601 092 400)
• 1 x NiMH battery (1 608 M00 05G)
• 1 x 9 V block battery (6LR61)
• 2 x 1.5 V LR20 battery (D)
• 1 x 1.5 V LR6 battery (AA)


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