DataGrabbers: Automatic, Easy, and Accurate Concrete Moisture Testing

Taking Rapid RH^® readings by hand means bending over at every test hole and writing each reading down.

DataGrabber^®s, an optional add-on for the Rapid RH L6, take those readings for you automatically.

• The Rapid RH System
• Why You Should Use DataGrabbers
• The Concrete Moisture Testing Trio of Your Dreams

Here’s how DataGrabbers work with the Rapid RH L6 system and why you might want to add them.

The Rapid RH testing system by Wagner Meters is designed to make testing your concrete slab’s moisture condition simple. On its own, the Rapid RH gives you everything you need for ASTM F2170 testing.

But what about small, mundane tasks, like constantly taking handwritten notes of your moisture readings or repeatedly bending over to obtain the readings in the first place? These actions slow you down; honestly, they are just plain tiring.

That’s why Wagner Meters has taken the time to make the Rapid RH L6 concrete moisture test simpler than it already is with the DataGrabber!

These compact little gadgets pack a punch as they completely automate the reporting of moisture readings with the Rapid RH L6 system.

But first, let’s do a quick review of the Rapid RH system.

The Rapid RH System

The Rapid RH is an ASTM F2170 compliant moisture testing system designed for simplicity. Its ease and accessibility mean that you can make sure that 1) you are using it properly and 2) that you’re getting data that will help you.

Within the Rapid RH system are the Rapid RH L6 sensors. These single-use sensors are the one-stop shop for concrete moisture testing. Once placed within the slab, these sensors can remain there, and conditions can be monitored over time if desired by connecting with the Total Reader^®.

If you want to have only one tool in your concrete moisture testing arsenal, the Rapid RH L6 sensors should be that tool. However, if you’re looking for automated reading and reporting to make the entire process even more efficient, the DataGrabber is a great addition.

Why You Should Use DataGrabbers

We don’t doubt for a second that the DataGrabbers will seriously improve your workflow and make assessing concrete moisture much easier. Here are some of our favorite reasons why you should be using the DataGrabbers:

They automate your moisture readings

One of the primary reasons for using DataGrabbers is because they automate your moisture readings.

These self-contained devices fit right into the Rapid RH L6 Smart Sensors, and they provide time-stamped readings at intervals that you determine.

This means that after placing the DataGrabber with Bluetooth^® technology, all you have to do is visit the jobsite and pull up your DataMaster™ L6 app on your mobile device. The stored readings transfer to the app via Bluetooth whenever you’re within range.

It’s that simple! You can throw away that pad and pencil because thanks to Wagner’s technology, you won’t need them anymore!

They help you anticipate the drying time of a slab

When you use the DataMaster app along with the Bluetooth-enabled DataGrabbers, you can use the collected moisture data to generate useful reports.

These reports help you analyze trends in the moisture drying time, see time-stamped readings, RH levels, temperature levels, and more.

Being able to anticipate the drying time of the slab means that you can give your clients realistic timelines, increasing your credibility and giving you peace of mind that your job will be well done.

Using the C555 concrete moisture meter takes the guesswork out of where to place your RH sensors in the concrete.

The Concrete Moisture Testing Trio of Your Dreams

The DataGrabber with Bluetooth, paired with the Rapid RH L6 and the DataMaster app, comprise a great combination of the best tools that will record moisture measurements accurately, store them safely, and display helpful trending charts.

And if you’re looking to add a fourth bonus tool, Wagner’s C555 concrete moisture meter can help you find the wetter areas of your slab. That takes some of the guesswork out of where to place your L6 sensors (while still placing the number of test holes ASTM F2170 requires).

At the end of the day, this trio (plus the C555, if you really want to maximize your time) means that you will have more time for new projects, more time for yourself, more time for your family, more time for whatever!

Get started with the Rapid RH L6

Learn more about the Rapid RH concrete moisture testing system. The Rapid RH L6 works on its own, and you can add DataGrabbers whenever you want to automate your readings.

Previously published in Commercial Flooring Report magazine.
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Jason Spangler

Jason has 20+ years’ experience in sales and sales management in a spectrum of industries and has successfully launched a variety of products to the market, including the original Rapid RH® concrete moisture tests. He is Vice President of Sales at Wagner Meters.

Last updated on November 10th, 2026