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 typeReadingMeasuring rangeResolution
G1 gaugeMonitors crack development indoors and outdoors1 axisOpeningManual20 mm0.1 mm
G1+ gaugeMonitors crack development indoors and outdoors with simplified direct reading1 axisOpeningManual25 mm0.05 mm
G1.1 gaugeMonitors crack development indoors only1 axisOpeningManual20 mm0.1 mm
G1.2 gaugeMonitors crack development discreetly thanks to its transparent design1 axisOpeningManual20 mm0.1 mm
G1.3 gaugeMonitors cracks with movements 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 carbon fibre gauge with very low thermal expansion1 axisOpeningManual45 mm0.02 mm
G2 gaugeMonitors and graphically records the minimum and maximum crack opening1 axisOpeningManual25 mm0.1 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 built-in wireless sensors1 axis, 2 axes, 3 axesOpening, Shear, MisalignmentAutomatic23 mm0.01 mm / 0.1 °C / 1% RH
R2 gaugeRemotely monitors crack development with a large-range external sensor1 axis, 2 axesOpening, ShearAutomatic100 mm0.01 mm / 0.1 °C / 1% RH
G6 gaugeMonitors both the opening and the shear movement of a crack2 axesOpening, ShearManual20 mm0.1 mm
3Dim gaugeMonitors any type of deformation in all three dimensions3 axesOpening, Shear, MisalignmentManual300 mm / 360° / 60°0.1 mm / 0.2°
G3 gaugeMonitors vertical or horizontal misalignment: slab cracking, sagging of a ceiling, beam or floor1 axisMisalignmentManual35 mm0.1 mm
R2.P gaugeMonitors the settlement of structures subject to temperature variations1 axisSettlementAutomatic100 mm0.01 mm / 0.1 °C / 1% RH
G5 gaugeMonitors the development of a tilt or overturning movement1 angleTiltManual±10°0.03°
R5 gaugeRemotely monitors the development of a tilt or overturning movement1 angle, 2 anglesTiltAutomatic±45°0.005° / 0.1 °C / 1% RH
G130 gaugeMonitors the development of a beam deflection or sag1 axisDeflectionManual35 mm0.1 mm
R130 gaugeRemotely monitors the development of a beam deflection or sag1 axisDeflectionAutomatic23 mm0.01 mm / 0.1 °C / 1% RH
G20 extensometerMechanically monitors the change in distance between two widely spaced points1 axisOpeningManual25 mm0.1 mm
R20 wireless extensometerElectronically and remotely monitors the change in distance between two points1 axisOpeningAutomatic23 mm0.01 mm / 0.1 °C / 1% RH
R10 gaugeRemotely measures humidity and temperatureHumidity, temperatureHumidity + temperatureAutomatic−40 °C to +125 °C / 0 to 100% RH0.1 °C / 1% RH
Crack rulerMeasures crack width by direct reading or with 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 the thickness of single and double glazingThicknessGlass thicknessManual22 mm1 mm