TECHNOTON DUT-E 2BIO | DIFFERENTIAL FUEL LEVEL SENSOR
Measure fuel reliably when diesel blends change
Summer diesel, winter diesel and biodiesel can give different readings on an ordinary capacitive tank sensor. The Technoton DUT-E 2Bio measures tank level and automatically compensates for changes in the fuel’s electrical properties, helping maintain useful volume readings when fuel types vary.
Use it with a compatible tracker or monitoring system to review fuel remaining, refuelling and unexpected draining in vehicles, machinery or stationary tanks.
WHEN TO CHOOSE THE 2BIO
Does your fuel change between fills?
Mixed diesel supplies
Useful for fleets that refuel across locations or seasons and encounter fuel with different electrical properties.
Biodiesel and blends
Helps keep level readings consistent when a tank is filled with diesel and biodiesel with different permittivity.
Equipment and fuel tanks
Consider it for trucks, agricultural or construction machinery, generators and suitable stationary tanks.
What problem does the differential sensor solve?
The challenge
A conventional capacitive sensor can report a changed level when the electrical properties of the fuel change, even though the tank geometry has not changed.
How 2Bio responds
Its additional measuring electrode detects changes in fuel properties so the sensor can correct its level reading. Initial tank calibration and correct configuration are still required.
From sensor reading to useful fuel information
01 / Measure
Sensor in the tank
DUT-E 2Bio measures fuel level and compensates for changes in fuel properties. Tank calibration relates the reading to volume.
02 / Connect
Compatible receiver
Choose the wired output version that your GPS tracker, telematics terminal or controller supports.
03 / Review
Monitoring platform
View fuel remaining, refills and unusual draining if supported by the receiving equipment and software.
Choose the version that matches your tracker
| DUT-E 2Bio CAN | CAN J1939/S6. Ask about this version if you need the configured fuel-type identification feature, subject to tracker and platform support. |
|---|---|
| DUT-E 2Bio 232 / 485 | RS-232 or RS-485 serial interfaces. Check the exact data protocol supported by your receiving equipment. |
| DUT-E 2Bio AF / I | Analogue voltage or frequency, or a current-output version. Confirm output requirements and model availability before ordering. |
An optional S6 BT service adapter can assist with supported configuration tasks. It does not make the standard wired 2Bio a battery-powered wireless sensor. Technoton also lists a separate wireless DUT-E 2Bio S7; ask Metromatics about that model if a cable-free differential sensor is required.
Wired DUT-E 2Bio specifications at a glance
| Measuring principle | Differential capacitive level measurement with an additional electrode |
|---|---|
| Power supply | 10–45 V DC |
| Operating temperature | −40°C to +85°C |
| Relative measuring error | Technoton specifies ±1% of the measuring probe length. This is not a blanket volume accuracy guarantee for every tank. |
| Standard probe lengths | 700 and 1000 mm. Longer approved configurations depend on probe design and manufacturing date; ask us to check your tank depth and the specific sensor. |
| Outputs | CAN J1939/S6, RS-232/485, analogue/frequency or current depending on model |
These figures apply to the wired DUT-E 2Bio. Technoton lists different power and operating-temperature specifications for its wireless DUT-E 2Bio S7. Check the current Technoton product page and model documentation when specifying equipment.
Tell us about your application
Tank and fuel
- Tank depth, shape and number of tanks
- Diesel types or blends used
- Vehicle, machinery or stationary installation
- Available wiring and power
Tracking and reporting
- Existing tracker or controller make and model
- Required sensor output and data protocol
- Need for remote readings or event alerts
- Whether fuel-type identification is needed
The tank must be installed and calibrated correctly. If you need fuel-type identification, confirm the 2Bio CAN configuration, calibration conditions and platform support with us before ordering.
Is the DUT-E 2Bio right for your tank?
Send Metromatics your tank depth, fuel types and existing tracker details. We can help check whether the wired 2Bio, another DUT-E model or a different connection approach fits your application.
Compare other fuel monitoring options
If your fuel type is consistent, consider the standard wired DUT-E. If you want a battery-powered Bluetooth level sensor, see the DUT-E S7. To measure fuel moving through an engine line rather than the amount remaining in a tank, explore our fuel flow meters.




