# Laser line level PRO LK-4DB blue — PRO, model 100-L1-122

**URL:** https://aio.lv/en/product--pro-100-l1-122--12060875
**Data updated:** 2026-03-12 19:44 (EET)
**Category:** Measuring tools
**Manufacturer:** PRO
**Manufacturer code:** 100-L1-122
**EAN:** 5901571526928
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 548.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 453.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pro-100-l1-122--12060875

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

PRO LK-4DB is a blue laser line level by PRO (model 100-L1-122). It projects visible blue laser lines for alignment and leveling tasks. Designed for measuring and marking straight reference lines on walls, floors and ceilings, it is suitable for interior installation, tiling, cabinetry and general alignment work where a clear linear laser guide is required.

## Long description

PRO LK-4DB blue — PRO, model 100-L1-122 projects bright blue laser lines designed for alignment and leveling in interior construction and finishing tasks. This laser line level creates straight, highly visible reference lines on walls, floors and ceilings to assist with tiling, cabinetry, shelf installation and other layout work. The compact housing and clear beam output make it suitable for repetitive alignment tasks where a continuous linear guide is needed.
Advantages
The device provides clear blue laser lines that are easier to see on many interior surfaces compared to red lasers, improving visibility in typical indoor lighting. Its construction supports stable placement for consistent reference lines, and the unit is compatible with standard tripod and mounting accessories used with line levels. The simple control interface allows quick setup and fast marking of horizontal and vertical lines without complex calibration procedures.
Suitable for
Tiling and grout alignment on walls and floors
Kitchen and bathroom cabinet installation
Suspended ceiling layout and grid positioning
Hanging shelves, pictures and level-mounted fixtures
General interior alignment and layout work
Key specifications
Laser color: blue
Projected beam type: linear (laser line)
Primary application: interior alignment and leveling
Mounting options: compatible with standard tripods and mounts
Typical visibility: high for indoor environments
Power source: battery-operated (user-replaceable batteries)
How to use
Place the PRO LK-4DB on a stable surface or mount it on a tripod at the required height. Power the unit with the appropriate batteries and select the horizontal or vertical line mode as needed. Aim the projected blue line at the intended work surface and fine-tune the position of the unit until the line aligns with your reference marks. For intersecting layouts, switch modes to project perpendicular lines and use the intersection point as a reference for precise positioning.
Usage recommendations
For best visibility, use the laser in typical indoor lighting conditions and avoid direct sunlight on the projection surface. Wear appropriate eye protection if working close to the beam and follow local safety guidelines for laser devices. Use a tripod or wall mount for improved stability during longer marking or installation tasks, and store the unit in a protective case when not in use to preserve optical alignment.

## FAQ

### How much does the PRO laser line level LK-4DB cost, and is it available for purchase?

The price is 548.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can PRO laser line level LK-4DB be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All PRO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized PRO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12060875/67546408_large.webp