Unmanned Aerial Vehicles
A new era of UAV fuel efficiency with the introduction of micro, lightweight flow meters that deliver accurate fuel consumption data in demanding operational conditions.
Key Benefits
Discover how our ultrasonic flow meters benefit your UAV application
Reduce fuel consumption
High-accuracy fuel flow data enables precise engine control optimisation, ensuring the UAV always operates at its peak fuel-to-power efficiency, improving fuel economy on every mission.
Maximise mission endurance
With accuracies of better than ±0.75% of reading, Sentronics flow meters allow operators to perform precise ‘point-of-no-return’ calculations and dynamically manage fuel use to extend flight range.
Real-time fault detection
Our flow meters detect abnormal fuel consumption acting as a diagnostic tool for engine health management. Early detection of flow discrepancies may indicate leaks, gas entrainment, inefficiencies and failures.
Our UAV Products
RealFlow® d450
The RealFlow® d450 is a revolutionary ultrasonic flow meter designed for accurate UAV flow measurement and is compatible with most common fuels.
RealFlow® d600
The RealFlow® d600 is a revolutionary ultrasonic flow meter designed for accurate UAV flow measurement and is compatible with most common fuels.
Solid-State Inline Design
Sentronics’ solid‑state ultrasonic flow meters have no moving parts or internal obstructions, eliminating the risk of blocked fuel flow from fuel tank to UAV engine. Free from mechanical wear, they deliver proven long‑term accuracy stability, even under sustained operation.
True Multi-Fuel Compatibility
Sentronics UAV flow meters are compatible with a wide range of fuels. Whether operating on Jet A, kerosene, diesel, AVGAS or alternative fuels, RealFlow® sensors maintain their accuracy without the need for recalibration or fuel-specific configuration. This true multi-fuel capability makes them uniquely suited to modern UAV platforms that may need to switch fuel types depending on mission requirements, geographic deployment, or logistical constraints. By eliminating fuel-type dependency, operators benefit from greater flexibility, reduced maintenance overhead, and enhanced confidence in their fuel data integrity – regardless of the operational environment.
Zero Pressure Drop System
Featuring a zero‑pressure‑drop design, Sentronics UAV flow meters maintain consistent fuel injector pressure even at high flow rates and with varying fuel viscosities. A smooth, low‑friction inline flow path eliminates pressure loss, outperforming traditional flow measurement technologies with restrictive, high‑pressure‑drop designs.
Mission‑Ready by Design
Designed for UAV endurance optimisation and operational resilience, Sentronics products are compatible with MIL‑STD‑461G and RTCA‑DO‑160G requirements. Proven in elite motorsport and built to perform under vibration, temperature extremes and electrical noise, they deliver reliable data when mission success depends on it.
DroneCAN
Sentronics D‑Series flow meters support DroneCAN, enabling straightforward integration with UAV flight‑control systems using a standardised CAN‑based protocol. The sensor transmits real‑time fuel flow data, regular health and status messages, and supports parameter configuration to simplify system integration and diagnostics.
Integrated Diagnostics
In addition to measuring fuel flow, our flow meters measure a variery of important parameters including fluid temperature, fluid speed of sound , signal attenuation (to detect aeration) and also totalised fuel used.
