IoT sensors for measuring, monitoring and locating your equipmentts
At Four Data, we design robust and accurate IoT sensors for monitoring the levels, status and location of equipment and containers, whether stationary or mobile. Our solutions enable the measurement of liquids, gases or solids in industrial, agricultural or logistics environments. Connected to Four Data platforms, our sensors transform field data into actionable insights to anticipate, manage and optimise day-to-day operations.
Rugged and accurate sensors for all your needs
A range designed to last
Our sensors are designed to withstand the rigours of the field: harsh weather conditions, demanding industrial environments and remote installations.
Multi-network connectivity
Four Data sensors are compatible with the main low-bandwidth IoT networks, ensuring extensive coverage even in areas with poor connectivity.
Remote monitoring (DESK & SENS)
The data collected is automatically transmitted to the Four Data platforms for simple and effective remote monitoring.
Embedded technologies
Ultrasound
Ultrasonic technology works by emitting a sound wave to measure the distance between the sensor and the surface of the product. It is particularly well suited to above-ground tanks containing liquids such as fuels, lubricants or water, in environments where space is limited.
Reflected sound wave
Contactless
Above-ground tanks
Fuels, water, lubricants
Hydrostatic pressure
High precision
Underground tanks
Industrial liquids
Pressure
Pressure measurement involves analysing the pressure exerted by the column of liquid at the bottom of the tank. This technology is ideal for underground or hard-to-access tanks and offers excellent accuracy for fuels, oils and other industrial liquids.
Radar
Radar technology uses electromagnetic waves to measure level without coming into contact with the product. It is particularly well suited to solids, waste or heterogeneous materials, and remains reliable in environments exposed to dust, deposits or changing conditions.
Electromagnetic waves
Contactless
Solids & waste
Harsh environments
Mechanical reading
Compatible with existing gauges
LPG / Liquefied gas
Liquefied petroleum gas
Ratiometric (Rochester / gas)
Ratiometric technology enables the mechanical reading of the position of an existing gauge of the Rochester, Cotrako, Rotarex SRG, Cavagna or similar type. It is used for monitoring liquefied petroleum gas (LPG) in tanks and is notable for its high compatibility with standard equipment in the gas sector.
Pulse (meters)
Pulse reading involves counting the signals emitted by a meter for each unit consumed, expressed in litres, cubic metres or kilowatt-hours. This technology is suitable for gas, water and industrial fluid meters, enabling accurate monitoring of consumption.
Pulse signal
Consumption tracking
Meters
Gas, water, fluids
Our sensors: the complete Four Data range
NOVA US LPWAN
Ultrasonic level sensor designed for remote monitoring of above-ground tanks. Suitable for liquids such as fuels, lubricants, water, or AdBlue.
- Quick installation
- Low energy consumption
- Ideal for remote areas
- Non-contact measurement
NOVA US
Ultrasonic level sensor intended for fixed above-ground tanks. Enables precise monitoring of industrial and energy-related liquids.
- Reliable remote transmission
- High measurement precision
- Industrial deployment
- Continuous monitoring
NOVA PRESSURE
Sensor measuring level through hydrostatic pressure. Suitable for underground or hard-to-access tanks containing fuels or oils.
- Excellent measurement stability
- Adapted to constrained environments
- Long-term reliability
- Discreet installation
NOVA RADAR
Non-contact radar level sensor. Designed for monitoring solids, waste, or heterogeneous materials in skips or silos.
- Dust-resistant
- Reliable measurement in complex media
- No contact with the product
- Reduced maintenance
TEKIO 822
Ratiometric sensor dedicated to reading Rochester gauges. Used for monitoring liquefied petroleum gas (LPG) tanks.
- Compatible with gas standards
- Reliable mechanical reading
- Fast deployment
- Adapted to ATEX environments
NOVA PULSE
Sensor enabling pulse reading of meters. Suitable for tracking gas, water, or industrial fluid consumption.
- Precise consumption tracking
- Compatible with existing meters
- Continuously actionable data
- Simple integration
NOVA RATIO / DOUBLE
Ratiometric sensor intended for mobile tanks or construction sites. The DOUBLE version enables monitoring of dual-compartment tanks.
- Adapted to mobile equipment
- Multi-compartment monitoring
- Field robustness
- Reliable measurement in real conditions
MOBILE GPS
Mobile GPS sensor providing geolocation of equipment and mobile tanks. Used for fleet tracking, logistics, or rental.
- Remote localization
- Movement history
- Logistics optimization
- Equipment monitoring
NOVA OIL
Pressure level sensor dedicated to monitoring oils and lubricants in tanks. Designed for industrial environments requiring continuous monitoring of viscous fluids.
- Adapted to oils and lubricants
- High measurement precision
- Industrial robustness
- Remote monitoring
TEK 898
ATEX gauge for tank level monitoring through pressure. Certified Ex ia IIB T3 for hazardous environments. Up to 12 daily readings with long-life battery.
- ATEX Ex ia certification
- IP68 overmolded
- Compatible with fuels and chemicals
- Fast and easy installation
CONNECTED PLC
Complete system with display screen, PLC, and 4G gateway. Monitors up to 30 tanks in real-time with overfill protection alerts.
- Local display with indicators
- Pump inverter control
- Real-time high-level alerts
- Integrated 4G communication
Comparison of Four Data sensors
| Sensor | Technology | Tank type / Environment | Networks | Recommended sector |
|---|---|---|---|---|
| NOVA US LPWAN | Ultrasound | Above-ground tanks, remote sites | LoRa, Sigfox | Energy, agriculture, rural sites |
| NOVA US | Ultrasound | Fixed above-ground tanks | LTE-M, NB-IoT | Industry, fuels, lubricants |
| NOVA PRESSURE | Hydrostatic pressure | Underground or hard-to-access tanks | LTE-M, NB-IoT | Energy, industry |
| NOVA RADAR | Non-contact radar | Skips, silos, waste, solids | LTE-M, NB-IoT | Waste, environment, Smart City |
| TEKIO 822 | Ratiometric (Rochester) | LPG tanks | LTE-M | Gas, energy |
| NOVA PULSE | Pulse (meters) | Gas, water, fluid meters | LTE-M, NB-IoT | Industry, networks, utilities |
| NOVA RATIO / DOUBLE | Ratiometric | Mobile tanks, construction sites, dual-compartment | LTE-M | Rental, logistics |
| Mobile GPS | GPS | Equipment and mobile tanks | LTE-M, NB-IoT | Logistics, rental, fleet |
| NOVA OIL | Pressure (oils) | Industrial oil and lubricant tanks | LTE-M, NB-IoT | Industry, lubricants |
| TEK 898 | ATEX pressure | Tanks in ATEX environments | LTE-M, NB-IoT | Energy, industry, SEVESO |
| Connected PLC | Pressure + PLC | Multi-tank depots (up to 30) | 4G | Depots, filling stations, industry |
This comparison highlights a selection from the FOUR DATA range of sensors. Our catalogue also includes other connected solutions, accessories and complementary equipment to meet specific requirements for measurement, monitoring and field control.
Compatibility & environments
Recommended environment and technology
Use cases & sectors
Energy & fuels
Supply disruptions and emergency deliveries make managing energy stocks more challenging. Four Data sensors enable accurate monitoring of fuel levels. Operators can anticipate demand, optimise routes and reduce logistics costs.
Lubricants & oils
Lubricant consumption is often poorly measured and difficult to predict. Sensors provide a constant overview of available stock levels. Replenishment is automated, minimising production downtime and excess stock.
Waste & the environment
Fixed collection rounds result in unnecessary journeys and overflowing bins. Sensors measure fill levels remotely. Collections are triggered at the right time, reducing costs and environmental impact.
Gas & GPL
Monitoring gas tanks requires precision and safety. Dedicated sensors ensure reliable level readings. Operators can safeguard supply, improve planning and comply with regulatory requirements.
Rental & logistics
The management of mobile equipment often lacks visibility regarding its condition and location. Sensors that combine level and location monitoring provide comprehensive oversight. Organisations can optimise the use of their assets and improve profitability.
Agriculture / livestock farming
Agricultural silos and storage facilities are difficult to monitor remotely. Four Data sensors enable continuous monitoring of stored volumes. Farmers can plan restocking in advance and ensure business continuity.
Installation & commissioning
Deployment across a wide range of devices
FOUR DATA solutions are compatible with a wide range of field equipment: above-ground and underground tanks, cisterns, meters, skips, silos, PAVs, mobile equipment and hydrogen tube trailers.
Smooth commissioning
Depending on the solution deployed, the equipment can be configured to quickly transmit initial data to the FOUR DATA platforms. The aim is to ensure a smooth onboarding process and rapid utilisation of field data.
Network of partner installers
FOUR DATA relies on a network of partner installers trained in its equipment to ensure that installations comply with technical, regulatory and safety requirements.
Data integration & management
Desk Platform (Pro)
The Desk platform centralises all data from the deployed sensors. It enables professionals to manage their fleets, analyse stock levels and make operational decisions based on reliable information.
SENS (end customer)
The SENS interface is designed for end users to easily monitor their equipment. It provides a clear overview of levels, measurement history and alerts, without any technical complexity.
API & ERP connection
The data collected can be integrated into existing systems via secure APIs. This integration facilitates the automation of information flows. Interoperability with ERP, CMMS or logistics software.
Documentation and certifications
PDF technical data sheets
Detailed technical data sheets are available for each type of sensor: level sensors, gas sensors, solid-state sensors and mobile sensors.
Installation guides
Clear installation guides are provided with each solution to facilitate on-site deployment.
Certifications
ATEX compliance depending on the model. IP ratings suitable for outdoor environments. CE and RED certifications. Compatibility with LTE-M, NB-IoT, LoRa and Sigfox networks.
Why choose Four Data?
FR
Made in France
Designed and developed in France
2-in-1
Hardware + Software
Natively integrated sensors and platforms
+80 000
Deployed sensors
Industrial, agricultural and logistics
1 to ∞
Modular & Scalable
From isolated sites to international multi-site networks
FAQ
The choice depends on the product being measured and the container: ultrasound or pressure for liquids, ratiometric for gas, and radar for solids. Four Data supports you in this selection process.
Certain models are compatible with ATEX environments. The choice depends on the product, the zone, and regulatory constraints. Our teams validate compliance before any deployment.
The sensors are designed for long battery life, generally lasting several years. This depends on the network used, measurement frequency, and operating conditions.
Four Data solutions are compatible with LTE-M, NB-IoT, LoRa, and Sigfox. The network is selected based on local coverage, installation type, and transmission requirements.
Yes, some installations can be performed independently. Four Data also offers installation services through certified partners to ensure compliance and reliability.
Data is accessible via the Desk platform for professionals, the SENS interface for end customers, or integrated into business tools using secure APIs.
Yes, Four Data sensors and platforms are designed for international deployments, taking into account local networks, languages, and regulatory constraints.
Depending on the use case, it is possible to associate several sensors with the same equipment—for example, to combine level measurement with geolocation or consumption tracking.
Installation is generally fast, taking from a few minutes to a few hours depending on the context. Commissioning is immediate after installation.
Yes, Four Data offers pilot phases to validate use cases, network coverage, and solution relevance before a larger-scale deployment.