Technoton DUT-E S7
Wireless fuel level monitoring for vehicles and equipment
The DUT-E S7 measures fuel remaining in a tank without a signal cable between the sensor and receiver. It sends readings via Bluetooth to a compatible telematics unit or nearby Android or Apple device. A connected monitoring system can then display fuel levels and report refilling or unexpected draining events.
Where does the DUT-E S7 fit?
Start with the tank and the equipment available to receive its Bluetooth signal.
FLEET VEHICLES
Monitor vehicle tank levels
Connect to a compatible tracking unit to monitor remaining fuel, refills and unusual draining.
MOBILE MACHINERY
Retrofit without a signal cable
A useful option for plant and equipment where routing a cable from the tank is difficult.
STATIONARY TANKS
Use a nearby receiver
Monitor a suitable stationary tank when a compatible Bluetooth receiver or gateway is within range.
How wireless fuel monitoring works
The sensor measures tank level. The receiving equipment determines how you view and use that information.
1. DUT-E S7 sensor
Measures fuel level and transmits readings via Bluetooth.
2. Compatible receiver
A vehicle tracking unit, Bluetooth gateway or nearby Android or Apple device receives the signal.
3. Monitoring and alerts
The connected app or platform displays readings and can report fuel events, according to its capabilities.
Important: The DUT-E S7 does not provide its own cellular or internet connection. For remote viewing, confirm that your receiver and monitoring platform support it. If no suitable receiver is nearby, ask about the DUT-E GSM.
What you can monitor
Check the measured level in the tank.
Review increases in fuel level.
Flag level drops for investigation when your connected system supports alerts.
A level sensor measures fuel in the tank. If you need to measure fuel passing through an engine’s fuel lines, explore our fuel flow meters.
DUT-E S7 specifications at a glance
| Measurement principle | Capacitive fuel level measurement |
|---|---|
| Wireless interface | Bluetooth 5.X Low Energy |
| Power | Built-in battery; no external power supply required |
| Estimated battery life | 5 years at a constant ambient temperature of 20°C; conditions can reduce service life |
| Bluetooth range | Up to 20 m on a vehicle or inside a building; up to 50 m with line of sight |
| Data transmission interval | 5 seconds |
| Operating temperature | −30°C to +80°C |
| Explosion protection | IECEx certificate IECEx FTZU 25.0021X; confirm the certificate and installation conditions for your application |
Probe lengths and extension options depend on the sensor supplied. Tell us your tank depth so we can confirm the appropriate configuration. See Technoton’s current DUT-E S7 documents for manuals and certificates.
Before ordering, tell us:
- Whether the tank is on a vehicle, machinery or stationary equipment
- Tank depth and fuel type
- Your existing tracker, receiver or monitoring platform
- Whether the installation has hazardous-area requirements
Check the S7 for your application
Metromatics can help confirm sensor selection, receiver compatibility and the configuration needed for your tank.
Need a different connection or fuel type option?
Compare the wired DUT-E, DUT-E 2Bio for changing fuel blends, or DUT-E GSM with cellular reporting. You can also view the complete fuel level sensor range.




