Wireless BLE (Bluetooth Low Energy) capacitive fuel level sensor for accurate, real-time fuel monitoring in vehicle tanks, stationary storage, generators, and industrial reservoirs. Transmits live fuel level data directly in litres to any BLE-enabled GPS tracker or telematics device — no wiring required. Probe length customisable from 15 to 300 cm; any hacksaw can be used to cut to size. Built-in calibration table eliminates external calibration tools. High-resolution capacitive sensing with galvanic isolation protects against power surges. For legacy systems without BLE, compatible bridge modules available for RS-232, RS-485, and USB. Battery-powered (3.6 V lithium) for multi-year continuous operation. Ideal for fleet management, fuel theft detection, and remote asset monitoring.