QRU-100

QRU-100 Thermal Monitoring Kit for Buildings‎

Solution for in-situ R-Value and U-Value Measurement‎s

The EKO QRU-100 Thermal Monitoring Kit for Buildings is a complete solution for in-situ ‎thermal performance measurement of walls and building elements. Designed for ‎building inspectors, energy auditors, researchers, and energy consultants, the QRU-‎‎100 makes it easier to evaluate the real thermal behavior of existing structures under ‎actual conditions. By combining heat flux measurement with indoor and outdoor ‎temperature monitoring, the system supports data acquisition for accurate assessment of thermal ‎transmittance (U-value) and thermal resistance (R-value) for walls and similar ‎structures. EKO positions the QRU-100 for use in line with ISO 9869, ASTM C1046, and ‎ASTM C1155 methods. ‎

Unlike many improvised field setups, the QRU-100 is built to simplify real building ‎measurements. The kit includes separate indoor and outdoor measuring units, and ‎each unit has its own independent ultra-high-resolution data logger with a long-life ‎battery. In practice, that separate-unit architecture helps you avoid cross-wiring ‎between the inside and outside of the building, making installation cleaner, faster, and ‎more practical for on-site work. The system also comes pre-configured and ready to ‎go, reducing setup time before measurement begins. ‎

Why choose the QRU-100 for Building Thermal Analysis?
The QRU-100 is designed to make building thermal performance evaluation easy, ‎efficient, and accurate. It is especially well suited for construction quality assurance, ‎energy efficiency assessments, renovation projects, and building diagnostics where ‎dependable field data matters. With 3 measurement points, support for HF-01S heat flux ‎sensor, and precision PT-1000 temperature sensors, the kit is made for ‎professionals who need reliable data rather than rough estimates. ‎‎

Cleaner installation with no cross-wiring

A major benefit of the QRU-100 is its split indoor/outdoor design. Because the monitoring units are separated and each unit includes its own standalone battery-powered data logger, you do not need to route cross-wiring through windows, walls, or temporary openings in the way many conventional setups require. That means faster installation, less disruption to the building, and a more professional measurement setup for occupied properties, retrofit surveys, and field inspections. This is one of the features that makes the QRU-100 especially attractive for on-site building thermal monitoring.

Pre-configured and ready to measure

The QRU-100 is supplied as a ready-to-use kit, not a collection of loose components that still need to be assembled into a workable system. It is pre-configured and ready to go, which is valuable when time on site is limited and repeatable setup matters.

Add solar irradiance measurement when needed

Interested in solar irradiance as well as heat flow and temperature? Expand your measurement setup with an EKO pyranometer. EKO offers Class C models such as the ML-01 or MS-40S pyranometer, which can add solar radiation insight to building and façade investigations where solar gain influences thermal behavior. This is a useful upgrade when you want a fuller picture of how solar input affects measured U-value trends or surface heat flow over time.

Sensor Installation
Installation of HF-01S heat flux sensor, included in this kit, is easy and straightforward, yet very important when you want to have accurate and precise heat flux measurement data. To install the sensor, we recommend practices mentioned in ISO 9869 Standard. Use thermal contact material and mask your sensor, making it as if it is part of the object you are measuring. Read the Quick Start Guide, Instruction Manual and Watch our installation video to learn more about how the sensor should look once installed.

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FAQ

Can the QRU-100 measure U-value and R-value?
Yes. The QRU-100 combines heat flux measurement with indoor and outdoor temperature monitoring to support in-situ assessment of thermal transmittance U-value, and thermal resistance R-value.

Does the QRU-100 require cross-wiring between indoor and outdoor units?
No. The QRU-100 uses separate indoor and outdoor monitoring units, each with its own standalone battery-powered data logger, helping avoid cross-wiring through walls, windows, or temporary openings.

Is the QRU-100 ready to use?
Yes. The QRU-100 comes pre-configured and ready to start, reducing setup time before building thermal monitoring begins.