No external power cable
An internal lithium battery supplies the sensor for wireless installations.
WIRELESS BLUETOOTH FUEL LEVEL SENSOR
AG-BFLS
Monitor fuel levels without an external power cable, using a compatible Bluetooth receiver.
OutputBluetooth Low Energy
PowerInternal lithium battery
Measurement error≤ 1%
ProtectionIP67
For non-conductive fuels. Confirm fuel, tank and device compatibility before ordering.
PRODUCT OVERVIEW
Designed around your installation.
Read and configure
Use BLE advertising for readings and a compatible app for configuration and calibration.
Plan battery service
The datasheet lists an average of 3–5 years. Operating and storage temperatures affect actual life.
TECHNICAL DATA
Know the details.
Values from the AG-BFLS datasheet. Wireless performance depends on the installation, receiver and environment.
Open source datasheet ↗| Output | Bluetooth Low Energy |
|---|---|
| Power | Internal lithium battery |
| Measurement error | ≤ 1% |
| Protection | IP67 |
| Communication | AoooG BLE / Dominator BT |
| Battery service life | Average 3–5 years; temperature dependent |
| Wireless range | At least 15 m without obstacles or interference |
| Data interval | 5 seconds for firmware 8.0; confirm for other firmware |
| Operating temperature | −45 to +50 °C |
| Dimensions | 90 × 80 × (L + 38) mm; L = sensor length |
| Maximum weight | 0.51 kg |
| Probe length | As ordered; check the packaging label |
INSTALLATION & SETUP
Prepare. Calibrate. Verify.
Use the full manual for installation. The steps below explain the workflow; dimensions and mounting allowances depend on the model and accessories.
- 01
Plan the mounting position
Measure the tank and choose a position close to its geometric centre, with room for the probe and mounting hardware.
- 02
Prepare the probe
Use the specified working length and model-specific clearance. Keep metal shavings out of the measuring tube and fit the supplied filter and accessories.
- 03
Set the reference points
Use the mobile app to configure the sensor and set the calibration references. Follow the Bluetooth manual for your hardware and firmware.
- 04
Mount and check the readings
Fit the gasket, seal and secure the sensor as instructed. Check the signal and tank calibration in the connected system.
Bluetooth integration
Use a compatible BLE receiver to collect advertising data. Connected configuration and calibration use the sensor’s GATT service. Match the protocol to the sensor firmware before interpreting packets.
Read the Bluetooth integration reference ↗PRODUCT RESOURCES
Everything for the next step.
Review the specifications, prepare the installation and connect the sensor to your application.
PDFProduct datasheetSpecifications and installation referencePDFWireless sensor user manualInstallation and handling instructionsAPPFuel Master for AndroidGoogle PlayAPPFuel Master for iOS / iPadOSApple App StoreAPPFuel Master for MacApple App Store · macOS 11+ / M1 or later; iPad app, not verified for macOSAPPFuel Master V0.1.4 for AndroidDownload the ZIP archive and extract the APK to installGUIDEMobile app setup guideAndroid and iOS app access and setup guidanceAPIBluetooth communication protocolPublic integration reference
COMMON QUESTIONS
Before you get started.
Can this sensor measure water?
No. These capacitive fuel sensors are intended for non-conductive liquids. Water and other conductive liquids are not suitable.
Do fuel level readings equal litres?
Level and volume are different measurements. The monitoring system needs the correct data format and tank calibration to convert readings into volume for your tank.
Can I shorten the probe?
The measuring probe can be cut for the tank. Follow the model-specific instructions, keep the tube free of debris and calibrate after preparation. For AG-BFLS, a remaining probe length of at least 150 mm is recommended.
Will it work with my tracker?
Your device needs a compatible ble receiver and support for the sensor output or protocol. Send us the tracker model to confirm compatibility before ordering.
LET’S FIND THE RIGHT FIT
Start with your tank.
We’ll help with the sensor.
Tell us the fuel type, tank depth and tracker interface.