Cordless green 12 line construction laser level + remote control G03308
Looking for ultimate precision in construction and renovation work? The Cordless Green 12 Line Construction Laser Level with Remote Control (SKU: G03308) is a professional tool that will completely change the way you work. With a projection of 12 lines (4 horizontal and 8 vertical) and an extremely visible green laser beam from the renowned OSRAM brand, it ensures impeccable precision on every project.
This self-leveling laser is ideal for construction, drywall work (knauf), tiling, furniture assembly and all other jobs where millimeter precision and speed are crucial. The included remote control allows for convenient remote control, and the powerful Samsung Li-Ion battery with a capacity of 4000 mAh ensures long-term uninterrupted work without constant charging.

Why choose a green 12-line laser level?
The green laser beam is up to four times more visible to the human eye than the classic red one. This means you will get the job done faster and more accurately, regardless of the lighting conditions in the room or on the construction site. With a working range of up to 30 meters and the option to extend the range with an additional detector, this level is an indispensable tool for any serious craftsman.
The level operates in two advanced modes: self-leveling mode, which automatically aligns lines within a range of up to 4°, and bevel mode (with pendulum lock) that allows you to easily determine any angle, ideal for stairs, sloping ceilings or attics.

Key advantages and benefits for the user

Exceptional visibility: High-quality green laser diodes from OSRAM (wavelength 505-550 nm) ensure crystal-clear lines even in brighter rooms.
360-degree coverage: Projects 1 x horizontal plane (360°) and 2 x vertical planes (360°), meaning complete coverage of the space in all directions.
Superb autonomy: Powered by a reliable Samsung Li-Ion battery with a capacity of 4000 mAh, which is easily charged via a modern USB Type-C connector.
Adjustable brightness: 4-level laser beam intensity adjustment allows for optimized visibility and battery saving.
Remote control: The included remote control allows you to turn individual lines on and off remotely, which increases efficiency when working alone.
Versatile use: Ability to turn off any of the three lasers individually using color-coordinated buttons on the control panel.
Complete protection: The IP54 protection class ensures high resistance to dust and splash water, which is essential for demanding construction sites.


Versatile use on the construction site and at home
This professional laser level is designed for a wide range of tasks where precision is the key to success:

Construction and masonry work: Precise determination of foundations, walls and partitions.
Laying tiles and floor coverings: Fast and perfectly flat laying of ceramics on floors and walls.
Drywall work: Easy installation of suspended ceilings and substructures for plasterboard (Knauf).
Carpentry and joinery: Assembly of wooden structures, alignment of cabinets, shelves and kitchen elements.
Defining bevels: Ideal for drawing lines at an angle, for example when installing stairs or painting decorative lines on a wall.
Home decoration: Quickly and accurately hang pictures, mirrors, curtains and other decorative elements.


Technical data and specifications

Model / SKU: G03308
Laser beam: Green laser (505-550 nm), class 2, OSRAM diodes
Number of lines: 12 lines (4 horizontal, 8 vertical)
Measurement accuracy: ± 1.5 mm / 5 m
Working range: 30 m (using an additional detector significantly increases the range)
Self-leveling range: 1° ± 4° (sound/light signal when tilting above 4°)
Plane generation: 1 x horizontal (360°), 2 x vertical (360°)
Power supply: Samsung Li-Ion battery 4000 mAh
Charging: Via USB Type-C cable
Protection level: IP54 (dust and water resistant)
Operating temperature range: -10°C to +50°C


What does the kit contain?
Upon purchase, you receive a complete kit ready for immediate use in the field:

1 x Cordless green 12-line laser level
1 x Samsung Li-Ion battery 4000 mAh
1 x Remote control for comfortable working from a distance
1 x Swivel stand with 3 adjustable support points for precise positioning
1 x Strong magnetic holder for mounting on metal profiles
1 x Laser target for better beam visibility at longer distances
1 x USB Type-C charging cable
1 x Durable protective case for safe transport and storage


Frequently Asked Questions (FAQ)
How does the self-leveling function work and what happens if the surface is too uneven?
The level has a built-in pendulum that automatically levels itself within a range of ± 4°. If you place the device on a surface that is tilted by more than 4 degrees, the sensor will detect this and warn you with an intermittent laser beam. In this case, you must place the level on a more level surface or adjust the tripod feet.
Can I use this laser to mark lines at an angle (e.g. for stairs)?
Of course! The laser features a pendulum lock (pendulum lock). When the pendulum is locked, the device switches to angle mode (oblique mode). This allows you to tilt the laser at any angle without triggering the uneven ground alarm, ideal for drawing lines along stairs or attics.
What is the advantage of OSRAM green diodes compared to red lasers?
OSRAM green laser diodes emit light with a wavelength of 505-550 nm, which is significantly more visible to the human eye than red light. This enables excellent line visibility at distances of up to 30 meters, even in bright rooms with plenty of natural light, while ensuring an outstanding accuracy of ± 1.5 mm per 5 meters.


Responsible persons:
GEKO - GEKO SPÓŁKA Z OGRANICZNĄ ODPOWIEDZIALNOŚCIA SPÓŁKA KOMANDYTOWA, ul. Spacerowa 3, 97-500 Kietlin, Poland, (+48) 446824004, geko@geko.pl
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• Insert or charge the battery and check the charge level.
• Place the level on a stable, flat surface or attach it to a suitable stand.
• Switch on the device and wait until the laser lines stabilize.
• Select the desired laser lines according to the task.
• If the model allows it, you can use the remote control to control individual functions or lines from a distance.
• When using at a greater distance, check the visibility of the green laser line.
• Before measuring, check that the level is properly leveled and that the lines are stable.
• After finishing work, turn off the device and protect it from impacts and dust.

Useful tips for work:
• For accurate work, the device should be placed on a stable surface or a high-quality stand.
• Before starting, check that the laser lines are correctly leveled.
• In strong daylight, the laser line may be less visible; if necessary, use a suitable laser detector if supported by the device.
• The remote control is convenient for setting lines when the level is installed in a hard-to-reach place.
• After use, clean the lenses with a soft, clean cloth and store the device in a protective case or pouch.

Warnings:
• Never look directly into the laser beam or point it at people or animals.
• Observe the laser class indicated on the specific product.
• Do not allow children to use the laser level.
• Do not use the device if the housing, optics or laser protection is damaged.
• Switch off the leveler before moving or transporting it.
• Charge the battery only with a compatible charger and protect it from water, overheating, and mechanical damage.

Same summary

This cordless green Geko 12-line laser level with remote control is suitable for more demanding tasks in the home environment, in the garden and in smaller construction projects where precise and multi-sided alignment is required. 12 lines allow for easy execution of more complex tasks, such as laying tiles, installing kitchens or creating straight lines at multiple reference points in a room. The device is less suitable for users who are looking for a basic solution only for quickly leveling pictures or small objects, as it is more versatile and powerful. The built-in rechargeable battery and additional remote control further increase the comfort of use in frequently changing field conditions.

Recommendation source: Enaa guides and team experiences.

User view

This type of laser level is most often used by users who often perform various tasks at home or in the garden that require precise placement or alignment of several elements at once. With the convenience of remote control and green lines that are clearly visible even in daylight, it proves to be a handy tool for laying tiles, assembling furniture, making fences or preparing various projects in the house and surroundings.

Many users also trust the Geko brand for its practical solutions and affordable range of home tools.

Why buy at Enaa

At Enaa, you can find a comprehensive selection of laser levels without a complicated search, and when purchasing this model, you can be sure that the descriptions are clear and tailored to the needs of the home user. In addition, we always strive to keep the offer up to date and provide professional support if you encounter any ambiguities regarding the possibilities of use or choosing the right tools.

Answers to frequently asked questions

Is a 12-line laser level also suitable for larger outdoor projects?

Such a model allows for effective use both indoors and for basic outdoor projects where visible lines and longer range are important. Before using in very open terrain, it is always advisable to check the visibility of the laser lines according to the ambient lighting conditions.

What does it mean that a level has 12 lines, and who benefits from it?

12 lines allow you to project horizontal and vertical lines in multiple directions simultaneously with one device, which is ideal for more complex tasks such as installing kitchens, laying tiles, or leveling multiple planes in a room.

Is additional training required to use a level with a remote control?

The device is designed to be suitable even for less experienced users. The remote control simplifies work, especially for tasks where the device is placed in difficult to reach places.

Is a laser level suitable for beginners or only for experienced craftsmen?

Thanks to its intuitive operation and multi-line projection, the model is accessible even to less experienced users, while its performance meets the needs of those who undertake more demanding home or semi-professional tasks.

Can I also use the level on a tripod?

Yes, the device supports use with standard tripods, which increases stability and accuracy for longer or more complex projects.

Description updated: April 2026