LLS 5

OMNICOMM LLS sensors deliver below 0.5% measurement error in real-world conditions, regardless of fuel type or composition, because FuelScan auto-adapts the sensor on the fly. On a 650-liter truck tank that means roughly plus or minus 3 liters, well within the 2 liters lost in the gas-station nozzle itself. By comparison, the factory dashboard gauge typically misses refueling events by up to 20 percent because it has an upper dead zone where the gauge stops moving even though more fuel is going in.

Accuracy in fuel monitoring is meaningless without two qualifiers: the conditions and the fuel. Most sensor brands quote a single accuracy figure from a lab test using one specific fuel type and composition at room temperature, and that figure only holds for that exact fuel. In the real world, composition changes every time the vehicle refuels at a different station, temperature swings from minus 40 to plus 60 Celsius depending on climate, and vibration is constant. OMNICOMM publishes its accuracy as below 0.5% across the full operating range (minus 40 to plus 85 Celsius, any biodiesel blend below epsilon 5, any tank shape calibrated correctly) regardless of fuel type or composition, because FuelScan continuously detects composition changes and recalibrates the sensor reading. The practical implication for fleets is that you can trust the data enough to investigate every flagged drain event without burning analyst time on false alarms. Even within the OMNICOMM lineup, LLS 4 reports 99.2% accuracy, LLS 5 reaches 99.5%, and the LLS 6 AI flagship exceeds 99.5% with neural network smoothing applied to raw readings.

Fuel composition changes every time a vehicle refuels at a different station: dielectric properties vary refinery to refinery, biodiesel blends add another layer of variation, and seasonal additives shift the numbers again. OMNICOMM sensors solve this with FuelScan, a patented data-processing technology built into LLS 5, LLS-Ex 5, and LLS 6 AI. FuelScan detects composition changes on the fly, filters out noise from vibration and temperature, and recalibrates sensor readings continuously, eliminating the need for manual recalibration.

Mechanically, FuelScan runs four loops in parallel. First, it samples the dielectric property of the fuel many times per second and detects when the property shifts (a refueling event with different fuel). Second, it filters mechanical noise from vibration, sloshing, and tank flex during cornering or rough roads. Third, it applies temperature compensation so that hot-day fuel expansion does not register as a phantom refueling event. Fourth, it cross-checks readings against the calibration curve and corrects for fuel-composition drift. The algorithm is trained on data from millions of objects across 110+ countries, which is what gives it the breadth to handle climates, fuel types, and tank shapes it has not seen before. For fleet managers, the practical outcome is that you can set up theft alerts at a 5-liter threshold without drowning in false positives, and you can trust consumption reports as the foundation of ESG and CO2 disclosure.

Tank calibration maps sensor readings to actual fuel volume in non-cylindrical tanks, where one centimeter of fuel level is not one liter of fuel. Without proper calibration even a perfectly accurate sensor reports wrong volumes. Manual calibration is the dominant labor cost in a deployment, typically running about 4 hours per tank against just 40 minutes for the sensor install itself. OMNICOMM CalibrateX eliminates the manual calibration step, cutting total installation time by roughly 70 percent.

Most fuel tanks on commercial vehicles are irregular shapes designed to fit chassis constraints: rectangular with cut corners, D-shaped, saddle-shaped over rear axles, or split twin tanks connected by a balance line. In an irregular tank, the relationship between fuel level (measured by the sensor) and fuel volume (what you actually care about) is non-linear. You need a calibration table mapping every sensor reading to its corresponding volume in liters. Manual calibration involves emptying the tank, then pumping in known increments of fuel (typically 20 or 50 liters at a time) while recording the sensor reading at each step. For a 600-liter tank, that runs around 4 hours including drain and refill, doubling for twin-tank trucks. Across a 100-vehicle fleet, manual calibration alone can consume around 50 installer-days. CalibrateX replaces the manual step with software-driven measurement and pattern recognition, cutting total installation labor by about 70 percent. For partners running large rollouts, this turns calibration from a bottleneck into a routine step, and it is the reason CalibrateX is positioned as a key tool for the installer network.

Yes. OMNICOMM LLS fuel level sensors are designed to be cut in the field to match the depth of the tank. Measure the tank depth, mark the sensor at the right length, cut with a hacksaw following the installation manual, and the sensor automatically adapts to the new length during commissioning. No factory recalibration is required, which is what makes the sensor practical to install in any tank.

This is one of the design choices that separates OMNICOMM LLS sensors from aircraft-style precision sensors that have to be ordered to exact length specifications. In real-world fleet installations, tank depths vary across vehicle models and even across vehicles of the same model after retrofits, so a field-adjustable design is what makes large rollouts realistic. The installer measures from the mounting flange to the bottom of the tank, marks the sensor a few centimeters above the bottom so it does not touch the tank under flex, and cuts the probe with a standard hacksaw. The sensor's internal electronics detect the new physical length during the first calibration cycle and adjust the measurement curve accordingly. The detailed step-by-step procedure is in the LLS installation manual that ships with every sensor and is available from the partner network or via the contact form.

Yes. OMNICOMM LLS sensors work with any fuel with a dielectric constant below 5, which covers all common biodiesel blends (B5, B20, B100) and most alternative fuels. FuelScan auto-adaptation recalibrates on the fly when fuel composition changes, so you don't need manual recalibration every time a vehicle refuels at a different station.

Biodiesel blends are mandated at rising percentages across the EU, Brazil, the United States, and parts of Southeast Asia, and each blend has a slightly different dielectric constant than petroleum diesel. Without auto-adaptation, a sensor calibrated for B0 (pure diesel) will misread fuel as soon as the fleet starts buying B7 or B20. Manual recalibration per blend is impractical for trucks that refuel at random stations along a route. OMNICOMM LLS 5, LLS-Ex 5, and LLS 6 AI sensors include FuelScan, which continuously monitors fuel composition and adjusts readings without requiring fleet operators to intervene. The same logic applies to renewable diesel (HVO), winter blends with cold-flow additives, and regional fuel formulations. For fleets in countries pushing aggressive biofuel mandates, this is a structural advantage. Legacy single-probe sensors lose accuracy with each blend change, while FuelScan-equipped sensors hold their 99.5% accuracy across the full fuel landscape.

Read more: Biodiesel is quietly breaking your data and why entry-level sensors overread on B20.