Rapid RH^® Concrete Moisture Test

No other industry-approved test method is faster than the Rapid RH.

Simplest F2170 Test
Improved Responsiveness
in High RH
Integrated Data Storage
Lowest Cost/Test

Buy Rapid RH L6 Buy Rapid RH 5.0

Rapid RH L6 Overview

Talk to a concrete moisture testing expert. Call us worldwide toll-free: 541-291-5123

Why Relative
Humidity Testing?

For successful flooring projects, it is crucial to measure moisture below the surface of the concrete slab. Other tests are surface-based and do not give reliable results. For example, the anhydrous calcium chloride test measures only the moisture vapor emission rate coming from the slab’s surface. It tells you nothing about the moisture condition deeper in the slab. Only the in situ relative humidity (RH) test is scientifically proven for accuracy and reliability.
Learn More Rapid RH L6 Overview

The Simple Rapid RH L6 System Is All You Need

Rapid RH is still the best of the best. If you want a simple and quick process to get the most reliable results, get it done with the basic kit.

Buy the Basic Kit

But If You're Looking for Automated Reading and Reporting...

You'll want to augment your Rapid RH L6 basic kit with cutting-edge tools that do away with the need for handwritten data. You'll save time and energy by automating the entire data collection process with the DataGrabber. Plus, you'll give added credibility to your data reporting.

DataGrabber^® with Bluetooth^® & DataMaster™ L6 App

Wireless and automated RH testing giving you more data points.

The DataGrabber with Bluetooth engages the L6 Smart Sensor to collect and store concrete RH and temperature readings according to a time interval set with the DataMaster L6 app. The DataGrabber with Bluetooth is the solution for autonomous documentation of the changing moisture condition inside the concrete slab.

Learn More

We want to help! Call us to discuss which configuration is best for your application.
Worldwide Toll-Free 541-291-5123

DataGrabber, Total Reader^®, & DataMaster L6 App

A long-term data logging solution.

The smaller DataGrabber connects to the DataMaster L6 app through the Total Reader. The DataGrabber is a long-term data logging solution because it fits within the L6 Smart Sensor to accommodate temporary or permanent covering over the slab.

Learn More

Enhance the Effectiveness of Your Concrete RH Testing with the C555 Concrete Moisture Meter

The C555 Concrete Moisture Meter assists with optimal placement of ASTM F2170 concrete slab RH test probes by enabling preliminary "Wet/Dry" measurement readings to help with detection of moisture pockets.

The C555 Concrete Moisture Meter supports the most effective placement of Rapid RH L6 Smart Sensors according to the processes outlined in ASTM F2659. Also, the built-in temperature and relative humidity sensor will give you ambient readings to assist with your ASTM F2170 reporting. Using the C555 as a qualitative measurement device, you can also get an instant indication of moisture intrusion within materials such as brick, concrete, and gypsum.
Buy C555 Now Learn More

3 Easy Steps to Successful RH Testing

Learn even more to ensure fast, accurate moisture test results that you and your clients can rely on.

It's easy! Here are the 3 steps you can take right away
to learn how to do RH testing.

Watch the video to learn how to easily use the Rapid RH and perform a moisture test

Watch the Installation Video

Learn how to perform a Rapid RH® moisture test quickly and easily—watch our installation video.

Free Moisture Testing Webinar

Browse through the comprehensive resource library packed with helpful videos, guides, and much more

Use These Great Resources

Check out our comprehensive online resource library, chock-full of useful videos, articles, and mobile apps.

Buy What You Need Online at the Rapid RH Store!

The Rapid RH store has everything you need for fast, accurate RH testing. You can easily and conveniently order online or give us a call toll-free at 541-291-5123. We’re here to help Monday to Friday, 7:30 am through 4:00 pm PST.
Buy Now Find a Local Distributor

Purchase a moisture meter easily by shopping online or call our toll-free number

“The process behind the Rapid RH is solid. We went to Rapid RH because the accuracy is certified and it doesn’t need to acclimate past its initial point. We could stick [the sensor] in there, read it and trust it.”
– J.D. Grafton, CC Solutions