The Omnicomm LLS-AF 4 Fuel Level Sensor is a high-precision wired capacitive fuel sensor designed for professional fleet fuel monitoring and telematics systems. Offering up to 99% measurement accuracy, this sensor uses a digital RS-485 interface (LLS protocol) to deliver stable, noise-free fuel level data. It is widely used in trucks, buses, generators, construction equipment, and industrial fuel tanks where maximum accuracy and reliability are required.
The Omnicomm LLS-AF 4 Fuel Level Sensor belongs to Omnicomm’s globally recognized LLS (Level Liquid Sensor) series. It uses capacitive fuel measurement technology, where changes in capacitance are converted into precise digital signals. The sensor communicates via RS-485 digital interface, ensuring high resistance to electrical noise and long cable runs without signal loss.
Designed for demanding environments, the LLS-AF 4 features a rugged aluminum body, high chemical resistance, and support for multi-point calibration, allowing accurate readings even in irregularly shaped tanks. When integrated with GPS trackers and fleet management platforms, it enables fuel consumption analysis, refueling detection, and fuel theft prevention.
This sensor is ideal for enterprise-grade fleet deployments, government fleets, and fuel-critical operations.
| 🔧 | Feature |
|---|---|
| 📏 | Up to 99% Accuracy with proper calibration |
| 🔌 | RS-485 Digital Interface (LLS protocol) |
| 🧠 | Capacitive Fuel Measurement Technology |
| 🛡️ | Rugged Aluminum Housing |
| 📊 | Stable, Noise-Free Digital Output |
| ⚙️ | Multi-Point Tank Calibration Support |
| ⛽ | Fuel Theft & Drain Detection |
| 🌍 | Compatible with GPS & Telematics Systems |
| Parameter | Specification |
|---|---|
| Sensor Type | Capacitive fuel level sensor |
| Measurement Accuracy | Up to 99% (≤1% error) |
| Fuel Types Supported | Diesel, Petrol, Kerosene |
| Measurement Resolution | High-resolution digital |
| Calibration | Multi-point tank calibration |
| Parameter | Specification |
|---|---|
| Output Interface | RS-485 (Digital) |
| Protocol | Omnicomm LLS protocol |
| Baud Rate | 9600 – 115200 bps |
| Data Output | Fuel level (volume / percentage) |
| Measuring range depending on the model | 0…700, 1000, 1500, 2000, 2500, 3000 mm |
| Parameter | Specification |
|---|---|
| Power supply voltage | 7…45 V |
Analog output | Max. output voltage 5…20 V Min. output voltage 0…15 V |
Frequency output | Max. output frequency 100…2000 Hz Min. output frequency 30…1900 Hz |
| Parameter | Specification |
|---|---|
| Operating Temperature | – 40 to +80 °С |
| Ingress Protection | IP69k |
Air pressure | from 84 to 107 kPa |
| Overall dimensions | 78×74×(24 + measuring part length) mm |
| Resistance | Fuel, vibration & corrosion resistant |
Commercial fleet fuel monitoring
Truck & bus fuel consumption analysis
Generator fuel level monitoring
Construction & mining equipment
Fuel theft and leakage detection
Industrial fuel tank measurement
Government & enterprise fleets
It is a high-accuracy wired capacitive fuel sensor that uses RS-485 digital communication for professional fleet fuel monitoring.
With proper calibration, it delivers up to 99% accuracy (≤1% error).
Via RS-485 digital interface using the Omnicomm LLS protocol.
Trucks, buses, generators, construction machinery, industrial tanks, and fleet vehicles.
Yes, multi-point calibration is essential for maximum accuracy.
Yes, sudden drops in fuel level can trigger theft or leakage alerts on the tracking platform.
387, PU-4, Scheme no. 54, Infront of Silvotel Hotel, Vijay nagar, Indore - 452010 (MP)
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Support Number : +91 9111604499
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387, PU-4, Scheme no. 54, Infront of Silvotel Hotel, Vijay nagar, Indore - 452010 (MP)
