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G1.5 Gauge – Carbon crack monitor
If you would like a quotation or have any questions about the product, please contact us:
- by email at info@saugnac-gauges.com
- by telephone on +33 9 62 07 18 68
128,50€ w/o VAT
Made in France
0.02 mmVernier resolution
1 axisCrack width
Measurement trackingSaugnac.app application
Stainless carbonVery low thermal expansion| Resolution | 0.02 mm |
|---|---|
| Monitoring Type | One-axis movement monitoring |
| Usage | Indoor / Outdoor: weather- and UV-resistant |
| Mounting | Mechanical installation using the included tap screws |
| Dimensions | 260 mm x 40 mm |
| Maximum Range | Approximately 45 mm (variation may occur between min and max measurement) |
| Weight | 25 g |
| Material | Rule: Stainless Carbon Clip: Nylon PA12 |
| Linear Thermal Expansion Coefficient | 3.5 × 10⁻⁶ m/m/°C |
The G1.5 crack monitor is a precision device designed for tracking and monitoring crack width variations. It stands out for its carbon construction and its 0.02 mm resolution.
Carbon offers two key benefits:
Thanks to its design, the G1.5 gauge is reusable. The 0.02 mm resolution enables highly accurate movement tracking. Readings are taken using a vernier principle, as with all models in the G1 family.
The crack monitor consists of two carbon rules sliding within PA12 Nylon clips—a polyamide known for its excellent dimensional stability and high weather resistance. Markings are pad printed and UV-resistant.
The G1.5 gauge is supplied with impact anchors for mechanical fastening. It features two Ø 4 mm holes for installation. Fastening is done through the device (the anchor’s shoulder overlaps the crack monitor).
Each G1.5 device has a unique ID in QR code format, enabling tracking via the free application available at https://saugnac.app. The app allows recording and archiving of measurements and photos, viewing their evolution as graphs, and reassigning the crack monitor for use on a new site with a new monitoring cycle.
Use the provided magnifier to read the measurement. The upper scale, graduated from 0 to 100 mm, represents the main measurement scale. The lower scale corresponds to the vernier. Reading method:
Identify the main scale graduation immediately to the left of the vernier zero. This value gives the whole millimeters.
Find the vernier mark that aligns exactly with a main scale mark. This indicates the decimal part to add.
Examples:
The G1.5 gauge is a carbon crack monitor that measures changes in crack width with a resolution of 0.02 mm. Fixed across the crack, it shows whether the crack is opening, closing or stable, and quantifies that movement through successive readings.
Both gauges are read using the same vernier principle, but the G1.5 is more precise and more durable: a resolution of 0.02 mm instead of 0.1 mm, a range of approx. 45 mm instead of 20 mm, and stainless carbon rules instead of PVC. Its thermal expansion coefficient is about 20 times lower than that of the G1 gauge. The G1.5 is fixed mechanically and can be reused from one site to the next.
No. Carbon has a very low thermal expansion coefficient (3.5 × 10⁻⁶ m/m/°C), which eliminates the effect of temperature variations on the measurement.
The gauge has two Ø 4 mm holes. It is fixed with the impact anchors supplied, through the device: the anchor’s shoulder overlaps the gauge.
Use the magnifier supplied and the vernier principle: read the whole millimeters on the main scale, then the hundredths on the vernier mark that aligns with the scale. See the reading principle and examples.
Yes. The carbon is corrosion-resistant, the PA12 Nylon clips are weather-resistant, and the pad-printed markings are UV-resistant.
Yes, the G1.5 gauge is reusable. In the Saugnac application, simply archive the readings from the first site to start a new monitoring cycle on the next one.
Each gauge has a unique QR code. The free Saugnac application lets you record measurements and photos, keep a history of them and display their evolution as graphs.
No: the G1.5 gauge measures movement on a single axis, perpendicular to the crack (opening and closing). To also monitor sliding along the crack, use the G6 gauge, which measures movement on 2 axes in the plane.
Removable digital crackmeter. 1-axis or 2-axis tracking. Resolution: 0.01 mm.
If you would like a quotation or have any questions about the product, please contact us: