Each type of need has its own crack monitor

Here’s an overview of our products and their features. If necessary, you’ll find more details on how to make your choice in the information sheet Choosing your crack monitor according to the type of crack or movement. You also download the concise documentation featuring the main products.

ProductPurposeMonitoringMonitoring typeReadingRangeResolution
G1 gaugeMonitors crack development indoors and outdoors1 axisOpeningManual20 mm0.1 mm
G1+ gaugeMonitors crack development indoors and outdoors with simplified direct reading1 axisOpeningManual30 mm0.05 mm
E1 gaugeMonitors crack development with a removable digital gauge and transparent mounting plates1 axis, 2 axesOpening, ShearManual25 mm0.01 mm
R1 gaugeRemotely monitors crack development with 3 connected sensors1 axis, 2 axes, 3 axesOpening, Shear, MisalignmentAutomatic23 mm0.01 mm – 0.1°C – 1% RH
R2 gaugeRemote monitoring with large-range external sensor1 axisOpeningAutomatic100 mm0.01 mm – 0.1°C – 1% RH
G1.1 gaugeMonitors crack development indoors only1 axisOpeningManual20 mm0.1 mm
G1.2 gaugeMonitors crack development more discreetly thanks to its transparent design1 axisOpeningManual20 mm0.1 mm
G1.3 gaugeMonitors crack development with amplitudes of several centimetres (up to 17 cm) or widely spaced fixing points (up to 25 cm)1 axisOpeningManual170 mm0.1 mm
G1.5 gaugeMonitors crack development with a stainless carbon gauge1 axisOpeningManual45 mm0.02 mm
G2 gaugeMonitors and graphically records the maximum and minimum crack development1 axisOpeningManual25 mm0.1 mm
G3 gaugeMeasures a vertical or horizontal differential settlement, slab cracking, or sagging of a ceiling, beam or floor1 axisMisalignmentManual35 mm0.1 mm
G6 gaugeMonitors both the opening and shear movement of a crack2 axesOpening, ShearManual20 mm0.1 mm
R5 gaugeRemotely monitors the development of a tilt or overturning movement1 angle, 2 anglesTiltAutomatic+/- 45°0.005° – 0.1°C – 1% RH
G5 gaugeMonitors the development of a tilt or overturning movement1 angleTiltManual+/- 10°0.03°
3Dim gaugeMonitors any type of deformation in all three dimensions3 axesOpening, Shear, MisalignmentManual300 mm – 360° – 60°0.1 mm / 0.2°
G130 gaugeMonitors the development of a beam deflection or structural sag1 axisDeflectionManual35 mm0.1 mm
G20 extensometerMechanically monitors the change in distance between two widely spaced points1 axisDistance between 2 remote pointsManual25 mm0.1 mm
Enhanced crack rulerMeasures crack width by direct reading or via the appWidthCrack widthManual40 mm0.1 mm
Triangular gaugeMeasures the gap between two objects or the width of a hole or crackWidthCrack widthManual15 mm0.1 mm
VitrometerMeasures single and double glazingThicknessGlass thicknessManual22 mm1 mm