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Rapid RH® 4.0 EX features our patented Touch-n-Sense™ technology. Simply insert the Easy Reader into any test hole with a Rapid RH® 4.0 EX Smart Sensor installed, and the two interact on contact.
Once the reading has been taken, the reading on the Easy Reader will continue to display for up to 5 minutes after being removed from the test hole, simplifying the testing and recording process at the job site.
It’s fast, it’s accurate, and it’s never been easier.
The Rapid RH® product line is the fastest, most cost effective and simplest way to meet ASTM F2170-11 “Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes.”
|Rapid RH® 4.0 EX Complete Starter Kit|
|All-in-one convenient carrying case includes everything you need to conduct several Rapid RH® 4.0 EX tests.|
|Rapid RH® 4.0 EX Smart Sensor & Easy Reader Pack|
|Already have the tools from our starter kit? This package provides the sensors and Easy Reader ready to conduct fast, accurate RH tests.|
|Rapid RH® 4.0 EX Smart Sensor 5 Pack|
|The Rapid RH® 4.0 EX Smart Sensor Pack is for those who already have a Rapid RH® 4.0 EX Easy Reader.|
|Need more sensors?|
|10 Times Faster||
|The Rapid RH® 4.0 EX patented design equilibrates faster than any other concrete relative humidity sensing device. In most cases, a Rapid RH® 4.0 EX Smart Sensor will be within 3% of the final reading (at 72 hours according to ASTM F2170-11) one hour after the installation.|
|Lowest Cost Per Test|
|The time saving alone gained with the Rapid RH® 4.0 EX leads to lower costs for you. But the Rapid RH® 4.0 EX also has a much lower initial investment than other relative humidity measurement options in the marketplace. So the Rapid RH® 4.0 EX saves you money IMMEDIATELY.|
|Simplest to Use|
|The Rapid RH® 4.0 EX method is simple and quick. To obtain readings, just insert the compact Rapid RH® Easy Reader into an installed Smart Sensor and get a reading that anyone on the jobsite can take. And the Rapid RH® 4.0 Easy Reader now features Touch-n-Sense™ Technology.
On contact with any 4.0 EX Smart Sensor, the Easy Reader turns on, takes a reading, holds the reading for up to 5 minutes after it is removed from the Smart Sensor, then powers down – all automatically!
|Easiest to Comply with ASTM F2170-11|
|Once placed in a test hole, the Rapid RH® 4.0 EX Smart Sensor is not moved in and out, unnecessarily handled and is always equilibrated. Each test location has a newly calibrated, NIST*-traceable Smart Sensor. This means compliance with ASTM F2170-11 requirements of traceability and documentation comes built in with each Rapid RH® 4.0 EX test.|
|With the Wagner Rapid RH® 4.0 EX, you get accuracy
* National Institute of Standards and Technology
|Why it is crucial to measure the moisture below the surface of the slab|
|Limits of Calcium Chloride Testing|
|The calcium chloride test measures the moisture vapor emission rate coming from a concrete slab. However 90% of moisture vapor emissions that a calcium chloride test sees comes only from the top half inch of the slab.
Once a floor covering has been installed and drying has stopped, the slab will equilibrate and evenly distribute the moisture from top to bottom.
Calcium chloride is therefore only a surface test, highly affected by ambient conditions in the room or building.
Even if done correctly, a calcium chloride test tells you nothing about what’s going on deeper in the slab.
|Danger of Moisture Meters|
|As with calcium chloride tests, testing with concrete moisture meters is also surface-biased. At best they only measure 3/4” into the depth of the concrete.
In addition, concrete moisture meter accuracy is negatively affected by the density variability of the concrete as well as the varying chemical and aggregate composition.
There is no ASTM standard for using moisture meters as a final determination of whether a concrete slab is dry enough for a flooring installation.