World-first wireless capacitive fuel level sensor with Bluetooth Low Energy (BLE) technology — no cable runs, no electrical system penetration. Measures fuel level with ≤1% accuracy and transmits live readings via BLE to compatible GPS trackers including Teltonika, Queclink, Galileosky, and Navtelecom. IP69S protection rating (dust-tight, high-pressure washdown) and operating range -30 °C to +85 °C make it suitable for harsh vehicle and industrial environments. Single lithium-thionyl chloride battery provides up to 7 years of continuous operation. Probe length range 150–1000 mm; data broadcast every 3 seconds via BLE advertising mode. Configured via smartphone app. Explosion-proof certified (EAES RU C-RU.AD07.V.00706/19). Ideal for fleet fuel theft prevention, remote fuel monitoring, and telematics integration.