R1 Gauge – Wireless crackmeter

Advantages of the R1 wireless crackmeter

• 3 sensors in 1 deviceMonitors crack displacement, temperature and ambient humidity
• Ready to useWireless crackmeter supplied with battery, communication module, SIM card and a 1-year subscription
• Quick configurationNo IT expertise required — configure from a PC or smartphone
• Remote parameter controlAdjust measurement and transmission frequency directly from the app
• Customizable graphsTailor and download charts to fit your reporting needs
• Data exportDownload raw data in Excel or CSV format
• Alert managementSet thresholds and receive automatic email notifications when exceeded
• All fixings suppliedInstall on hollow or solid substrates, flat or angled, using the included hardware

Technical specifications

R1 Gauge – Wireless crackmeter for remote crack monitoring

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An all-inclusive standalone wireless crackmeter

The R1 gauge is a ready-to-use IoT (Internet of Things) crackmeter for remote crack monitoring. The gauge is supplied with:

• Three sensors: linear displacement, temperature and humidity
• An app accessible on smartphone or PC without limitation
• A one-year subscription included with the gauge (the subscription starts only at first activation. After expiry, data remains accessible in the app)
• Complete mounting hardware for solid or hollow substrates, for flat or angled installation

Easy to set up

The R1 crackmeter requires just two drilled holes and can be installed in most configurations without additional accessories. A built-in system allows the range to be adjusted by ±5 mm after installation.

The compact housing contains all three sensors and the communication module with its antenna. No additional equipment is required for data transmission, and no special computer skills are needed to install the R1 gauge.

Easy to use

Depending on the configured settings, the gauge wakes at regular intervals, measures using its three onboard sensors and stores the data locally. It then wakes according to the defined transmission frequency to send the stored data to the app.

The R1 gauge is reusable. At the end of a monitoring campaign, switch the gauge off and store it in its box. If the anchors used cannot be recovered, we supply a replacement anchor kit. Use the “archive” function in the app to confirm the end of monitoring. Then reinstall it on the new site and configure it as for first use. All historical data is retained and remains accessible.

Connectivity across Europe and most of the world

The R1 gauge connects to LTE-M / NB-IoT networks — protocols based on 4G infrastructure and designed specifically for connected devices, offering extended range over distance and through obstacles (signals may be received underground where a phone cannot).

Connectivity is multi-operator and works in all European countries and many others worldwide.

The subscription starts at first activation: until the gauge is activated, the subscription does not begin.

Up to 8 years of battery life

The gauge is powered by the 3.6 V battery supplied. Under normal use and depending on settings, battery life varies between 2 and 8 years. The estimated lifetime is indicated during configuration in the app. An alert is sent when the battery nears end of life.

Flexible configuration adjustable remotely

Measurements are configured in the app: choose the measurement frequency, the transmission frequency and the start time.

Measurement frequency options: every 1h, 2h, 4h (6×/day), 6h (4×/day), 8h (3×/day), 12h (2×/day) or 24h (1×/day).

Transmission frequency options: twice a day, every day, every 2 days, every 3 days or every week.

Configuration can be changed remotely, allowing you to adjust settings later if needed without travelling to site.

4-step installation of the wireless crackmeter

Designed to be very easy to install with only two drilled holes, the R1 gauge can be set up in just a few clicks using a smartphone or PC with internet access. All steps are detailed in the supplied instructions:

1. Add the R1 gauge to the Saugnac app by scanning the QR code on the R1 gauge or by entering the identifier under the QR code. As with all our gauges, each R1 gauge is uniquely identified.

2. Define the activation parameters in the app:

   • Time of first measurement
   • Measurement frequency: every 1h, 2h, 4h, 6h, 8h, 12h or 24h
   • Transmission frequency: twice a day, every day, every 2 days, every 3 days or every week. The less frequent the transmissions, the longer the battery life.

3. Switch on the gauge by turning the piston: turn the piston a quarter-turn to unlock and automatically power on the gauge.

   

   The gauge will then start up, attach to the network and initialize. An LED indicates the status. Once initialized, the gauge goes into standby until the scheduled time of the first measurement.

4. Fix the gauge to the crack: on a solid substrate using the brass anchors; on a hollow substrate using the EPDM anchors; at an angle using the supplied articulated joint. Bonded mounting is possible with the dedicated fixing kit sold separately.

Remote crack monitoring with the app

All data collected by the three sensors (displacement, temperature, humidity) is accessible via the https://saugnac.app app on smartphone or PC. As with all our gauges, access to the app is free. Even if the subscription for sending data ends, your account and the data remain accessible.

Graphs can be configured and downloaded as images for inclusion in your reports. Raw data can be downloaded in Excel or CSV format for further processing. You can also share a report easily via a link generated in the app. The report is dynamic, with data updated at the time the user opens the link.

The app lets you set alerts for thresholds above or below the first measurement. When a threshold is crossed, an email is automatically sent.

Mounting the R1 wireless crackmeter

The R1 gauge can be mounted with the piston on the right or on the left (“upside down” relative to the sticker). The gauge is supplied with two types of anchors:

Brass anchors for solid substrates requiring Ø8 mm holes.

Required tools not supplied for mounting on a solid substrate with brass anchors: drill, Ø8 mm drill bit, 3 mm hex key + T10 Torx key (supplied).

EPDM anchors with nuts and washers for hollow substrates (also usable on solid substrates) requiring Ø13 mm holes.

Required tools not supplied for mounting on a hollow (or solid) substrate with EPDM anchors: drill, Ø13 mm drill bit, 3 mm hex key + T10 Torx key (supplied).

Two set screws are supplied:

• a shorter screw, onto which the articulated joint is fitted for flat or angled mounting. The piston is then held by this joint.
• a longer screw, which receives the ball end of the gauge, with two nuts to hold it in place.

Standard flat mounting

Angled mounting

With the supplied articulated joint, the R1 crackmeter can easily be fixed at an angle without additional accessories.

Bonded mounting

On metal substrates, or any other surface that cannot be drilled, the R1 gauge can be mounted by bonding using the dedicated fixing kit designed for adhesive installation. The knurled screws are specially prepared to make bonding easier. A two-component epoxy adhesive is recommended. This kit replaces the set screws supplied with the gauge.

Mounting with an extension

Using a 20 cm extension sold separately, the R1 gauge can be fixed where the distance between fixing points exceeds 18 cm, up to 32 cm.

For extensions greater than 20 cm and up to 40 cm, please contact us.

Protection

This PVC protective cover is designed to be fixed on one side of the crack only, which makes installation easier while preventing mechanical stress and reducing the risk of the cover breaking as the structure moves.

It is available in 2 colours.

Remote shear and misalignment monitoring

Remote shear monitoring (Y movement)

With the shear kit for the R1 gauge, you can monitor movement on the Y axis remotely, using the fixings supplied in the kit and an R1 gauge.

With one R1 gauge mounted conventionally and a second R1 gauge fitted with the shear kit, you can monitor movement on both the X and Y axes remotely.

Remote misalignment monitoring (Z movement)

With the misalignment kit for the R1 gauge, you can remotely monitor a misalignment or offset movement on the Z axis. The principle is to mount the R1 gauge so that it measures movement along the Z axis.

The mounting bracket supplied is 25 cm long, so make sure there is enough space available.

Subscription and network coverage

The subscription included with the R1 wireless crackmeter is multi-operator and works throughout Europe and in most countries worldwide:

Europe: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom

Other regions: USA, Japan, Canada, Australia, Mexico, South Korea, Argentina, Colombia, Israel, Singapore, Taiwan, New Zealand

When powered up, the gauge performs a network attachment phase and automatically connects to the network offering the best available connectivity. For any questions regarding coverage in your country, please do not hesitate to contact us.

The R1 gauge works with the LTE-M and NB-IoT protocols — dedicated to communication between connected devices via operators’ 4G antennas.

In the event of a one-off network issue, data is saved and resent at the next transmission. If the issue persists, the gauge automatically restarts the network attachment procedure to switch operators if necessary.

The default subscription is valid for 1 year. After expiry, historical data remains visible but new measurements are no longer transmitted. Email alerts are sent before the end of the subscription. Subscriptions can be extended directly from the app, either by credit card payment or by using a purchase order generated in the app. The price of a 1-year subscription is €49 excl. VAT.

Frequently asked questions