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Fast, Accurate Moisture Test for Concrete Floors

The Best RH Test Just Got Better

The Rapid RH® L6 system, an enhanced version of the already popular Rapid RH system, consolidates many concrete moisture testing features into a simpler process while featuring advanced technology that makes reporting faster, easier, and more reliable, even in concrete slabs with a relative humidity of up to 100%.


Familiar Sensor Design, Added Capabilities

Although it looks similar to the Rapid RH 4.0 EX Smart Sensor, the new green L6 Smart Sensor will provide accurate concrete moisture readings up to 100% RH. Also, each L6 sensor includes an onboard memory device capable of storing 512 time-stamped measurements so you can come back years later, retrieve an embedded sensor, and recover the historical data.

A New Reader Design, Combining the Best Features and Adding More

The new all-in-one Total Reader® combines the rugged reliability and accuracy of the handy Easy Reader and wireless Rapid RH Smart Reader into a single easy-to-use device. The Total Reader instantly reads and displays concrete RH and temperature data from the Smart Sensors. The Total Reader will also transmit, via Bluetooth®, to the free DataMaster™ L6 recording and reporting app.


Maximum Data Integrity from the Streamlined

DataMasterL6 App

The DataMaster L6 improves upon the incredible utility of the DataMaster 4.0/5.0 app with an improved user interface and streamlined navigation to information and reporting functions, making your concrete slab relative humidity (RH) testing faster and easier than ever before. The DataMaster L6 app connects via Bluetooth to the Rapid RH Total Reader for a completely wireless system of reading, recording, and reporting your concrete slab moisture test data. DataMaster L6 takes advantage of an unbroken stream of data to give you the highest level of data integrity.

  • Ensure the integrity of your critical ASTM data from sensors and email “READ ONLY” reports.

  • Capture, assemble, and email all data necessary to adhere to the ASTM F2170 standard.

  • Link all recorded data to your job site’s sensor locations with a mapping function.

  • Input job metadata such as job name, address, and hole depth.

  • Add photos, audio memos, and text notes to your job info.

  • Print or email reports directly from your smart device.

  • Easily upload your job data to the website.


Note: The DataMaster L6 app is designed to be used only with Rapid RH L6 Smart Sensors and the Rapid RH Total Reader.

Rapid RH L6 Frequently Asked Questions

I still have 4.0 EX sensors. How does this affect me?

Capteurs 4.0EX

You’re still working with the best concrete RH test in the industry. Feel free to use the rest of your 4.0EX Smart Sensors. When you’re ready to replenish your sensor stock, simply order a new value pack of L6 sensors, since they come with the new Total Reader for FREE (until May 2020). You’ll also need the NEW Rapid RH L6 Insertion Tool. Once you have these, you’re ready to make a seamless transition to the next generation of RH testing technology for a relatively small additional investment. We’re confident that you’ll be impressed with the added features.

Do I have to buy a new reader?

The new L6 Smart Sensors are not compatible with previous readers (i.e., the Smart Reader and the Easy Reader). We’ve designed the new Total Reader to have stronger, more ruggedized pins (in addition to other features), necessitating a change in the compatibility. To make this transition as easy as possible for our customers, we are including a FREE Total Reader with the purchase of every Value Pack of Smart Sensors (25, 50, or 100 smart sensors) until May 2020.

If a value pack isn’t the best fit for you, the Starter Kit+ and WFP400+ Professional Kit come with a Total Reader. We also offer a 5 pack of Smart Sensors that includes a Total Reader.

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