Tramex CRH Moisture Content and Relative Humidity Meter

How does it work?
In Moisture measuring mode, the CRH uses the principle of electrical impedance measurement to give accurate non-destructive moisture readings in concrete and gypsum floor screeds. From Electrodes with special spring mounted probes on the base of the instrument, a low frequency signal is transmitted into the material being tested to measure the electrical impedance. This signal is processed as a percentage of moisture reading for concrete slabs and a relative reading for gypsum screed.

In Hygrometer mode it uses a solid state capacitive sensor Relative Humidity probe to give accurate and fast relative humidity, temperature & dew point temperature readings.

While being easy and uncomplicated to operate, the CRH has a powerful micro controller, which processes the information received and and accurately calculates the moisture content, relative humidity, temperature and dew point. These readings are displayed on the clear digital display. It has a high capacity non-volatile memory chip which stores and retains its data. This information can be recalled at any time by scrolling and reading directly from the instrument’s own display or downloaded to a PC for storage and inclusion on spread sheet or report.

Need for the CRH
Excessive moisture in concrete floor slabs and screeds can lead to a host of problems in all types of floor coverings such as: adhesive degradation, delaminating of the floor covering from the slab and within itself, condensation, blistering, movement and deterioration of the covering. In the case of wood flooring, excess moisture can lead to swelling, cupping and movement of the wood which can lead to floor failure and even structural damage. Excess moisture in floor systems can also lead to mold growth. Most of these problems can be related to the floor covering being installed on a sub floor that is not sufficiently dry. It is therefore important to insure that the floor slab or screed is sufficiently dry enough to accept a covering or coating.