Dear Manager,
Are you looking for Wireless BLE All-in-One Ultrasonic Fuel Level Sensor for Fleet Fuel Monitoring/Telematics?
Approved by Teltonika,Reputela, Calamp, BCE, Wireless Link, Atrack, Meitrack, Queclink.
1. No Drawing Holes on Tank, easy installation
2. Output Interface: BLE Bluetooth 5.0 +RS232(Default)/RS485+Analog(0~5V)
3. Mobile App configuration &Calibration
4. Built-in AI Algorithm to filter abnormal signal

Tell me freely if any question or need samples to test.

Best Regards,
Tenet Auto Electronics Ltd. 
Whatsapp: +8617322329061