DUT-E fuel level sensor provides precise measurement of fuel levels and volumes in the tanks of vehicles and stationary units. It accurately tracks the current fuel volume and detects changes such as refueling or fuel drainage.
Scope of application
Fuel theft prevention
Fuel consumption monitoring
Monitoring of tank refueling and fuel drainingClassical DUT-E fuel level sensors are integral to vehicle telematics systems (fleet management) and IIoT applications (fixed fuel tanks). They effectively monitor fuel levels, provide alerts when refueling is needed, and help prevent unauthorized fuel siphoning.
Does your vehicle fleet require simultaneous fuel tank monitoring and GPS tracking? We have the perfect solution! DUT-E GSM is a 2-in-1 device that combines a fuel level sensor with a GPS telematics unit, all in a single, compact body.
For accurate measurement of various fuel types (summer or winter diesel, biodiesel), DUT-E 2Bio fuel level sensors are your best option. These sensors are not only highly accurate but also self-calibrating, ensuring consistent performance for any fuel type, whether in a tank or cistern compartment.
Models of DUT-E fuel level sensors
There are several interfaces available for DUT-E fuel level sensors: CAN j1939, RS-232, RS-485, Bluetooth. Selection depends on the specifications of telematics unit, which is already installed on a truck. Please, refer to DUT-E product manual to get more information. We recommend connecting DUT-E to our CANUp telematics gasteway for ensuring 100% compatibility and maximum performance of vehicle telematics system.
Also, you might want to have a look on the list and connection guides for other compatible GPS trackers, telematics boxes and displaying units.
Classical capacitive fuel level sensor – DUT-E
| Operating principle | capacitive |
| Measurement inaccuracy, %, not more than | 0.2 for stationary fuel tanks and standing vehicles; 1 for moving vehicles |
| Supply voltage, V | 10-45 |
| Overvoltage protection, V | up to 100 |
| Operating temperature, оC | from -40 to +85 |
| Relative measuring error (to the length of the measuring part), %, not more than | ±1 |
| Output signal | digital, CAN j1939/S6; digital, RS 232 (DUT-E COM protocol); digital RS 485 (DUT-E COM protocol); analog-frequency output 1-9 V / 500-1500 Hz; |
| Standard length, mm | 350, 700, 1000 |
Fuel level sensor with in-built GPS and GSM – DUT-E GSM
| capacitive | |
| Measurement inaccuracy, %, not more than | 1 for moving vehicles |
| to any length | |
| Can be extended up to maximum length, mm, not more than | 6000 мм |
| Wialon IPS v.2.0. | |
| Availability time after power-up, seconds, not more than | 10 |
| 50 000 | |
| Average current consumption at supply voltage 12/24V, mA, not more than | 75/35 |
| 200/100 | |
| Power supply voltage range, V | from 10 to 45 |
Differential fuel level sensor for various fuel types – DUT-E 2Bio
| Operation principle | Capacitive |
| Measurement inaccuracy | 1% |
| Supply voltage, V | 10 .. 45, protection up to 100 |
| Operation temperature, °С | –40 .. +85 |
| Current consumption (DC 24/12V), mA | ≤ 25/50 |
| Probe length, mm | 700, 1000 (can be manufactured up to 6000 mm on request) |
| Output signal | CAN j1939/S6, RS-232/485 Modbus, voltage or frequency, current |
Wireless Bluetooth fuel level sensor – DUT-E S7
| Estimated lifetime of the sensor (battery life), years | 5…10* |
| Fuel level sensor operating principle | Capacitive |
| Wireless data transfer interface | Bluetooth 4.X |
| Tx Power, dBm | +4 |
| Rx sensitivity, dBm | -88 |
| Maximum distance between sensor and receiver, m | 10…20 (when mounted on a vehicle or inside a building);not less 50 (when mounted within line-of-sight) |
| Standard probe length, mm | 700, 1000 (can be manufactured up to 3000 mm on request) |
| Data transfer interval, s | 5 |
| Number of simultaneous BLE-signal receivers | Any number in DUT-E S7 operation range |
| Temperature range, °C | -30…+80 |
| *Depending on ambient temperature. | |
Advantages of DUT-E fuel level sensors
Handy installation to fuel tank and connection to a GPS tracker.
- Adjustable probe length for precise measurement.
- Bottom spring for increased stability in the tank.
- Screen filter to protect the probe from water and debris.
- Automatic compensation for ambient temperature changes.
- Complete set of mounting accessories included.
Comprehensive data set to boost your fleet management system.
- Fuel level measured in millimeters and abstract units.
- Fuel volume provided in liters and as a percentage of total tank capacity.
- Monitoring of both fuel and ambient temperatures.
- Relative permittivity coefficient of fuel.
- Sensor self-diagnostic codes for system checks.
Selecting DUT-E fuel level sensor
To choose the right model of DUT-E fuel level sensors for your fleet management system or IIoT application, consider the following:
- Fuel tank height: while the DUT-E sensor length can be adjusted during installation, it’s helpful to know the approximate tank height in advance.
- Comaptible data collection unit: DUT-E sensors come with various interfaces to connect with a wide range of GPS trackers. We recommend CANUp telematics gateway for 100% compatibility and performance.
- Required functionality: depending on your needs, you can choose a sensor setup for sending data to an onboard telematics unit, directly to a telematics server, or for local monitoring via a mobile app.