The Allengra Micro Flow Meter provides fuel and liquid consumption monitoring in a compact package that is well suited to UAV applications where size, weight and cost are key considerations. Weighing less than 50 grams, the ultrasonic sensor offers a low-SWaP alternative to larger flow measurement solutions, making it ideal for developers prioritizing lightweight integration over maximum measurement precision. Suitable for fuels as well as a wide range of other liquids, it is available in U- and Z-shaped configurations.
The robust and cost-effective sensor features an integrated high-speed temperature sensor and supports accurate flow and temperature measurement within a single device. A range of interface options, including Pulse, 0–5 V, Modbus, I²C/CAN and UART, enables straightforward integration into UAV electronics and telemetry systems, while push-fit connections further simplify installation.
Designed with no moving parts, the Micro Flow Meter delivers reliable, maintenance-free operation while avoiding the wear associated with conventional mechanical flow sensors. It also incorporates gas bubble detection capabilities, providing additional insight into system operation and making it a versatile solution for developers of fuel-powered UAVs and other unmanned platforms requiring compact and dependable flow measurement.
Specifications:
| Dimensions (L x H x W): | U-Shape: 73 x 41 x 43.7 mm
Z-Shape: 73 x 41 x 62.2 mm |
| Weight: | 50g |
| Power: | 4.5 - 28 V
Current consumption < 10 mA (< 40 mA during power up for 100 ms) |
| Flow Measurement Range: | OD6: 1 – 300 L/h | 0.28 - 83.3 ml/s
OD8: 1 – 600 L/h | 0.28 - 166.7 ml/s |
| Accuracy: | +/- 2% of measured value |
| Repeatability: | +/- 1% |
| Temperature Measurement Range: | 0 - 120oC |
