K-level proudly presents the KLL-D300 Line Laser, an advanced cross line laser level self leveling tool engineered for professional contractors and precision-driven applications.
This high-performance instrument combines exceptional accuracy with automatic self-leveling technology, making it ideal for construction, interior design, and renovation projects that demand perfect alignment.

Available in two distinct beam options—red and green—the KLL-D300 Line Laser ensures unmatched accuracy and visibility for all your leveling and alignment needs.

As a premium cross line laser level self leveling device, the KLL-D300 projects bright, highly visible cross lines (horizontal and vertical) with ±0.2mm/m accuracy. Its self-leveling mechanism (within ±4°) ensures quick setup and reliable performance, while the manual mode allows for slope alignment when needed.

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KLL-D300 Line Laser Function:

The KLL-D300 Line Laser comes in models: the KLL-D301R/KLL-D302R/KLL-D303R (red beam) and KLL-D301G/KLL-D302G/KLL-D303G (green beam). The red beam models (KLL-D301R/D302R/303R) feature a 635nm wavelength with a powerful 100mw laser diode, while the green beam models (KLL-D301G/D302G/303G) offer superior visibility with a 520nm wavelength and a 30mw laser diode. Both variants comply with Laser Safety Class 2 standards, ensuring safe operation in various work environments.

Designed for efficiency, the KLL-D300 Line Laser boasts a quick leveling time of <5 seconds and an impressive accuracy of ±3mm/10m, making it an indispensable Leveling Laser Level tool for professionals. Its wide leveling range (±3°) ensures stability even on uneven surfaces. Powered by a Li-ion 18650 Battery (3.7V, 4000mAh), it delivers up to 4 hours of continuous operation, perfect for extended work sessions.

cross line laser level self leveling

Durability is another key feature of the KLL-D300 cross line laser level self leveling. With an IP54 waterproof rating and an operating temperature range of -10℃ to +50℃, it performs reliably in tough conditions. The 1/4″-20 mounting thread allows for easy attachment to tripods or other supports, enhancing versatility on the job site.

Model No.	KLL-D301R/D302R/303R	KLL-D301G/D302G/303G
Light Source	Red Beam	Green Beam
Laser Wave Length	635nm	520nm
Laser Diode	100mw	30mw
Laser Safety Class	Class 2
Leveling Range:	±3°
Leveling Time	<5 sec
Leveling Accuracy	±3mm/10m
Power	Li-ion 18650 Battery 3.7V 4000mAh
Operation Time	About 4h
Operation Temperature	-10℃～+50℃
Mounting Thread	1/4″-20
Waterproof	IP54