PosiTest CMM - Concrete Moisture Meter

PosiTest CMM on a concrete floor DeFelsko's Positest CMM is a non-destructive electronic moisture meter, used to evaluate the comparative moisture in concrete floor slabs and screed systems.

Impedance meters such as the CMM are best suited for quick evaluation of surface moisture in concrete slabs and can be supplemented with the use of embedded RH probe systems such as the PosiTest CMM IS where internal moisture is to be captured.

The CMM conforms to ASTM F2659, one of the methods considered in Australian Standard AS 3740:2021 Waterproofing Of Domestic Wet Areas.

Features

Easy-to-read digital display.
Calibration Test Certificate included.
- Includes Check Standard to verify operation
Hold Max and Save Mode allows automatic measurements when values stabilise.
Optional extension rod allows users to work standing up.
The IP65 enclosure is weatherproof, dustproof, and water-resistant
Fast sensors provide instant reading
- Spring loaded sensor pins ensure contact on uneven concrete
Three measurement modes:
- Continuous Mode constantly updates the display
- Hold Max Mode displays the maximum reading until saved or reset
- Hold Max and Save Mode waits for the reading to stabilize, then automatically saves it into memory

Video

Package Contents

Supplied complete with 2 AAA batteries, instructions, protective rubber cap, Check Standard, Test Certificate, USB cable, nylon carrying case with shoulder strap, two (2) year warranty

Size: 89 x 152 x 38 mm (3.5” x 6” x 1.5”)

Weight: 295 g (0.65 lbs.) without batteries

Specifications

Measurement Scales	0 to 6% Moisture Content of Concrete*
		0 to 4% Carbide Method Equivalent
		0 to 100 Relative
Accuracy	± 0.5% Moisture Content of Concrete
Depth of Penetration	~20 mm
Temperature Range	5° C to 40° C
IP Rating	65 (dust and water jet resistance)
Memory	200 readings
Power	2 AAA Alkaline Batteries
*This scale is calibrated using the gravimetric method (percentage of dry weight).