Allengra's PUM Fuel Flow Meter is designed for internal combustion engine-driven UAVs, heavy-duty drones, and other fuel-powered unmanned platforms. Leveraging the company's experience in high-performance motorsport applications, the ultrasonic sensor delivers accurate real-time fuel flow measurement, providing operators with reliable insight into fuel usage throughout every stage of a mission. Suitable for gasoline, diesel, oil and kerosene, it combines flow measurement with integrated temperature and pressure sensing in a single compact unit.
The flow meter supports detailed fuel usage analysis, allowing operators to better understand how much fuel has been consumed and how much remains onboard. By combining consumption data with known fuel capacity, users can determine key milestones such as when half of the available fuel has been used, helping to establish safe return-to-base points, improve mission planning and maximize operational safety.
Designed for demanding operating environments, the sensor provides high-accuracy ultrasonic flow measurement without compromising response speed. CAN-Bus and Modbus outputs allow straightforward integration into UAV systems, enabling fuel consumption data to be incorporated into onboard monitoring and telemetry for improved operational awareness throughout flight.
Specifications:
| Dimensions (L x W x H): | 72 x 32.4 x 56 mm |
| Weight: | 240g |
| Power: | 5.5 – 24 VDC
<70 mA @ 12V <150mA @ 5.5V |
| Flow Measurement Range: | +/- 5 – 8000 ml/min
+/- 0.3 – 480 L/h |
| Accuracy: | < +/- 0.5% of measured value |
| Repeatability: | < +/- 0.25% |
| Temperature Measurement Range: | 0 - 110oC |
| Pressure Measurement Range: | -0.1 – 10 barG |




