The image shows two toolboxes labeled 'WOLFF KRL BOX PREMIUM' and 'WOLFF KRL BOX BASIC.' The toolboxes are black with blue labels that provide information about the contents and a QR code. Surrounding the toolboxes are various tools, including a wooden hammer, a small paintbrush, a flat scraper, and a black tool holder. There are also two small jars, one of which is open, and a small plastic bag. The background is a light-colored floor.

A person, kneeling on a light-colored floor, is using a hammer and chisel to break apart some materials. The individual is wearing black gloves and grey work pants, demonstrating a task that involves manual labor. Surrounding the person are small fragments of rock and dust from the work site. The methodical motion of striking the chisel indicates focus and effort in the task at hand.

A person wearing black gloves is seen in a crouched position, holding a spoon filled with a grayish powder. They are preparing to transfer the substance into a transparent plastic bag, which is partially opened. The background is out of focus, and there is a light-colored surface with some of the same gray powder scattered on it.

A person's hands working with a hammer on a bag containing small pieces of material on a light-colored floor. The individual is wearing black gloves, holding a wooden hammer with a metal head. The floor appears to be smooth and light, with a small hole visible in the background.

A person wearing vibrant green gloves is focused on assembling a black component on a construction site. The individual is kneeling on a cement floor, holding a funnel-like piece above a cylindrical part with a textured surface. In the background, there is a clear plastic bag containing gravel or similar material, alongside other black construction components. The overall setting appears to be well-lit and organized, suggesting a careful approach to the task at hand.

A close-up view of a person's hand wearing a green glove, handling a round black tool, with a scattering of small stones nearby. In the background, a black carrying case is open, revealing various tools and containers. A transparent bag of small gray stones is positioned beside the hand, and a hole in the ground is visible.

Wolff KRL Box Premium Set

The WOLFF KRL Box enables quick and precise moisture measurement in accordance with DIN 17668 and TKB Leaflet 18. The KRL value is displayed immediately via the app. This is ideal for digital moisture measurement and secure assessment of the readiness of substrates.

Properties

Quick Results Without Detours:
The WOLFF KRL Box is the smart solution for anyone who wants to carry out moisture measurement quickly, precisely, and directly on-site. Developed in close collaboration with UZIN, this innovative measuring device delivers reliable results in no time—without extensive preparation. The sensor transmits the exact KRL value directly to the associated app within minutes. This allows installers, site managers, or experts to immediately decide on-site whether the substrate is ready for covering or if further moisture barrier measures are necessary.
Easy Operation on the Construction Site:
Thanks to its intuitive handling, the KRL Box is particularly user-friendly and designed for daily use on construction sites. It significantly reduces the number of steps involved, as weighing, shaking, or chemical additives are not necessary. This saves valuable time and avoids potential sources of error in the measurement process.
Accurate Measurement Values, Digitally Documented:
The KRL Box complies with DIN 17668 and the current industry requirements according to TKB Leaflet 18 for moisture measurement, automatically documenting all measurements digitally in the app—complete with timestamps and project assignments. This makes providing evidence to clients, planners, or assessors a breeze.
Optimal System Solution for Residual Moisture:
Whether in new construction, renovation, or time-critical projects—complementing CM measurement, flooring professionals are well-equipped with the WOLFF KRL Box. If the measured moisture value is too high, UZIN’s perfectly coordinated system ensures safe moisture barrier measures—allowing for damage-free installation in the long term.
Efficiency Meets Precision:
The WOLFF KRL Box brings speed, safety, and digital precision to moisture measurement—an indispensable tool for modern construction sites.
Efficient and Cost-Saving Sensor Replacement:
The KRL measuring device for moisture measurement impresses with a particularly fast and easy sensor replacement—without the need for complicated calibration. Instead of spending time calibrating, the sensor can be easily replaced. This not only saves time but also reduces costs and significantly increases efficiency on the construction site.
Technical Specifications:

Operating Temperature: 5°C to 55°C
Relative Humidity Range: 5% to 95% relative humidity
Box Dimensions: Ø110 x 55 mm
Box Weight: 350g
Protocol: BLE 4.0
Power Supply: 4 AA Alkaline batteries
Languages: German/English/French/Dutch/Polish/Swedish/Spanish/Russian