Dear friend,
Are you looking for Ultrasonic fuel/liquid level sensor for Ruptela GPS tracker?
1. RS235/485 or analog voltage output: 0~5V.
2. Detecting range: 1m level or 2m level.
3. No drawing, higher accuracy, easy installation, anti-pollution and etc.
4. Easy integration with GPS tracker without software change.
Our sensors already are approved by Queclink, Calamp, Wirless Link, Trimble, Teltonika, Meitrack, BSJ and many other GPS tracker factories.
ultrasonic fuel level sensor for Meitrack 
Contact us now, let's talk more. 
More details please see:
Tenet Auto Electronics Ltd. 
Whatsapp/Mobile:+86 1382 8761 858