Dear friend,
Are you looking for All-in-One-Probe ultrasonic fuel/liquid level sensor for 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:
Welcome to HongKong Global Sources Electronics Show,Hall 1, Booth No.: 1D16,Date: April 11~14, 2017
Tenet Auto Electronics Ltd. 
Whatsapp/Mobile:+86 185 0301 7253