Fuel Level Sensor for Vehicle GPS Tracker, Fuel Monitoring Sensor

This fuel level sensor (fuel sensor) is compatible with GPS trackers. It detects real-time fuel volume in the tank and sends data to your tracking platform. Help you spot fuel theft, abnormal consumption and oil leakage. Professional installation recommended for trucks and commercial vehicle fleet management.

Product Features

High‑precision Fuel Readings

Track real‑time fuel level and actual fuel consumption easily.
Fuel Theft/Leakage Alarm

Trigger alert for sudden fuel drop to prevent fuel theft losses.
GPS Tracker Friendly

Works with GPS trackers, check fuel data remotely on platform
Multi‑fuel Compatibility

Stable measurement for diesel, gasoline and methanol fuels.

Product Specifications

Filter

Measurement Performance

Measuring Principle	RF capacitive + tomography technology
Detection Range	15‑900 mm
Accuracy	Level 0.5
Resolution	0.01 mm
Output Characteristic	Linear output corresponding to liquid‑level height
Supported Liquids	Petrol, diesel, hydraulic oil and other weakly‑corrosive liquids (including ethanol‑gasoline, methanol‑fuel)
Calibration	Auto‑calibration, no manual adjustment required

Environmental & Mechanical

Probe Operating Temperature	−100 ~ 150 ℃
Ambient Working Temperature	−40 ~ 70 ℃
Working Pressure	−0.1 MPa ~ 0.1 MPa
Probe Diameter	Φ16 mm
Moving Parts	None, shock‑resistant construction

Electrical Parameters

Nominal Supply Voltage	DC 12‑40 V (Typical 24 V DC)
Maximum Working Voltage	DC 10‑80 V

Output & Serial Communication

Selectable Output Signal (only ONE active at a time)	4‑20 mA / 0‑5 V / 0‑10 V / RS232 / RS485
Serial Interface Type	RS232 (Full‑duplex)；RS485 (Half‑duplex multi‑drop bus)
Communication Protocol	2 sets of proprietary ASCII‑based serial protocols
Supported Functions via Serial Protocol	Read liquid‑level percentage, read raw AD value, set sensor ID, set filter/damping coefficient
Device Address Range	0‑99 (Unique address mandatory for each sensor on RS485 bus)
Minimum Command Interval	≥ 200 ms for RS485 bus communication
Filter / Damping Levels	0‑9 (0 = no filtering; maximum damping time 960 seconds)

Installation & Mounting

Mounting Options	Thread M20×1.5；Flange DN25 / DN40 / DN50
Customization	Special probe length & mounting forms available on request
Supplied Accessories	Flange, rubber gasket, O‑ring, fixing screws

Explosion‑proof Rating

Explosion‑proof Grade

Intrinsically‑safe Exia ⅡC T6；Flame‑proof Exd ⅡC T5

Wiring Definition

Power Supply	Red: 24V+；Black: 24V‑ / GND
RS232	Blue: RXD；Yellow: TXD
RS485	Yellow: A；Blue: B
4‑20 mA	2‑wire: Red 24V+, Black GND
0‑5 V	3‑wire: Red 24V+, Black GND, Blue 0‑5V signal output