Laser levelling

Laser levelling uses a beam projector on a tripod to establish a constant elevation or a perfectly flat plane. In construction, it aligns framing and tiling. In farming (Laser Land Levelling), it scrapes fields to create a completely flat surface, improving irrigation and boosting crop yields. 

How it Works (Construction / DIY)

Setup: Mount the laser level on a stable tripod and turn on the auto-levelling function.
Projection: The device projects a continuous, perfectly straight horizontal or vertical line (red or green) onto your workspace.
Detection: Outdoors or over long distances, use a laser detector attached to a measuring rod to find the beam when it is out of sight. [1, 2, 3, 4]

How it Works (Agriculture / Land Levelling)

A tractor-mounted scraper is equipped with a laser receiver.
A stationary laser transmitter sends a constant plane of light across the field.
The scraper automatically adjusts its height to scoop soil from high spots and dump it into low ones. [1, 2, 3, 4, 5]

Finding Equipment & Parts

If you are looking to purchase a laser level, pricing and options vary:

Basic Units: Simple line/infrared laser levels start around Rs. 2,000 to Rs. 4,000.
Professional Grade: Multi-line (e.g., 12-line or 16-line 4D) green laser levels cost between Rs. 14,000 and Rs. 36,000.
Where to buy in Sri Lanka: Browse available tools and compare prices locally on Daraz.lk or check suppliers like BuyUniversal. [1, 2, 3, 4]

Are you planning to use a laser level for a construction project (like tiling or framing) or for agricultural land leveling? I can provide step-by-step guidance for your specific project.