Press release #Power Tools

Connectivity function for precise alignment: New generation of professional Bosch line lasers

Three 360° lines with high visibility

  • High precision: contact-free control via app
  • Precise work without calibration errors: The Bosch Cal Guard is a world first
  • Better visibility: Red high-performance diodes or green laser lines
Manuel Roj

Manuel Roj


Bosch presents a new generation of line lasers with three tools for greater efficiency on construction sites: The entry-level GLL 3-80 Professional model, as well as the connected GLL 3-80 C Professional and GLL 3-80 CG Professional models. They are the first line lasers worldwide which can be controlled using an app and Bluetooth interface. Tradespeople can, for example, switch the laser line on and off individually using the Bosch Levelling Remote App − without touching the tool and altering settings accidentally when handling the device. Additionally, operating via app makes set up and work in hard to reach places easier. The brightness of the laser lines can also be conveniently adjusted by the user for better visibility or to save battery power, for example. The Bosch Levelling Remote App is available free of charge in the Google Play Store and in the Apple App Store, and is part of the Bosch Toolbox App.

Bosch sensors monitor calibration

For the first time, the connected models also give a calibration warning, the Cal Guard Function – a world’s first developed by Bosch, which informs the user of possible calibration influences. There are various external influences which can interfere with the calibration of the line laser and are not always apparent at first glance. For example, if the tool has been heavily shaken in a fall or stored at a temperature outside the permissible range of between -20 °C and +70 °C. The tool displays these events via a red LED light that warns the user of calibration errors, thus ensuring precise results. The app provides users with detailed in-formation about the warning, meaning that they always have an eye on the tool’s calibration and can carry out all of their work with precision. The Cal Guard Function also informs the user when the recommended 12-month calibration interval has expired. The Bosch sensors monitor the condition of the measuring tool constantly, even when it is switched off. If the measuring tool is not connected to a battery power supply, an internal energy storage device will support monitoring for 72 hours.

Line lasers with particularly high visibility

All three tools project three 360° laser lines: One horizontal and two vertical. The two vertical laser lines intersect and each also provides a plumb point – one on the floor and one on the ceiling. On the GLL 3-80 Professional and the GLL 3-80 C Professional, high-performance diodes ensure visibility of the red laser lines even in bright environments. The GLL 3-80 CG Professional operates with green laser lines that are up to four times more visible to the human eye than the red laser lines on similar tools.

Universal helper for different trades

The functions of the new line laser generation cover a wide range of applica-tions, be it the dividing of spaces in dry construction, precision in tiling, or for carpenters in furniture assembly and the installation of dividing walls. Since the lines can be switched on and off individually, the laser tools combine the func-tions of a cross line laser and a point laser all in one. It can also carry out the interior applications of a rotary laser. This is an advantage for tradespeople, since they only require a single tool for all interior leveling jobs and avoid making multiple purchases. In addition, multiple tradespeople are able to work on different areas simultaneously.

The BM 1 Professional universal mount ensures flexible mounting options.

Furthermore, the two Bluetooth models have a dual power supply: They can be powered by both a replaceable 12-volt rechargeable battery and by non-rechargeable alkaline batteries. They are also “TrackMyTools”-enabled: Thanks to the integrated Bluetooth module, registered users can see where their line laser is at any time using the cloud-based inventory management system via the app.

The new generation of line lasers is now available. All prices are recommended retail prices excluding VAT. Subject to change.

SpecificationsGLL 3-80

(replaces GLL 2-80 P
GLL 3-80 C
GLL 3-80 CG

Working range of
laser lines
30 m (120 m with
30 m (120 m with
30 m (120 m with
Leveling accuracy of laser lines± 0.2 mm/m± 0.2 mm/m± 0.2 mm/m
Leveling time < 4 s< 4 s< 4 s
Self-leveling range± 4°± 4°± 4°
Laser diode,
laser class of
laser lines
630 – 650 nm,
<10 mW/class 2
630 – 650 nm,
<10 mW/class 2
500 – 540 nm,
<10 mW/class 2
Laser line colorredredgreen
Dust and
splash protection
Power supply 4 x 1.5 V LR6 (AA) bat-teries12-volt lithium-ion rechargeable battery, alternatively 4 x 1.5 V LR6 (AA) batteries 12-volt lithium-ion rechargeable battery, alternatively 4 x 1.5 V LR6 (AA) batteries
Operating time with three laser planes4 h8 h (lithium-ion)
6 h (alkaline)
6 h (lithium-ion)
4 h (alkaline)
Operating temperature-10 °C to +40 °C-10 °C to +40 °C-10 °C to +40 °C
Storage temperature-20 °C to +70 °C-20 °C to +70 °C-20 °C to +70 °C
Dimensions (length x width x height)149 x 84 x 142 mm162 x 84 x 148 mm162 x 84 x 148 mm
Weight with
non-rechargeable bat-teries/rechargeable bat-tery
0.82 kg/-0.86 kg/0.90 kg0.86 kg/0.90 kg
Scope of delivery/ Recommended
retail price
excluding VAT
• Tool in case with four 1.5 V LR6 (AA) batteries and BT 150 Professional tripod: €389

Bag and laser target plate are included.
• Tool in cardboard packaging with four 1.5 V LR6 (AA) bat-teries and AA1 al-kaline battery adapter: €464
• Tool in L-Boxx 136 with one 12-volt
rechargeable bat-tery, charger and BM 1 Professional universal mount:

Bag and laser target plate are included.
• Tool in L-Boxx 136 with one rechar-
geable 12-volt bat-tery, charger and BM 1 Professional universal mount:

Bag and laser target plate are included.

The Robert Bosch Power Tools GmbH, a division of the Bosch Group, is one of the world’s leading providers for power tools, garden tools, power tool accessories and measuring tools. In 2023, its roughly 19,500 associates generated sales of 5.6 billion euros, about 90 percent of which outside of Germany. With brands such as Bosch and Dremel, the division stands for customer focus and great engineering progress. The core success factors are innovative strength and pace of innovation. In 2024, Bosch Power Tools will again launch more than 100 new products onto the market in its four business segments power tools, outdoor and garden tools, accessories and measuring tools.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of 91.6 billion euros in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability. In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source. It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

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