Overview
Overview
SGT Fuel Level Sensor is an ultrasonic or capacitive tank-level sensor with anti-siphon analytics — continuous fuel level, refill / theft / low-level events, reconciliation reports, and a dispatch dashboard. Installs on diesel tanks of trucks, buses, generators and bulk storage.
Built for fleet owners and contractors who suspect (or know) fuel is being siphoned, mis-filled or misreported. The system typically pays for itself in 6-12 weeks by exposing theft, blocking false refill claims, and giving accountants a clean variance number.
- Continuous level — ultrasonic ±1% accuracy, 10-30 s sampling
- Theft detection — AI correlates level drops with GPS + ignition state
- Refill validation — flags claimed refills that don’t match tank-level rise
- Reconciliation reports — weekly PDF with issued vs consumed vs variance
How It Works
- Sense — an ultrasonic sensor mounted on top of the tank measures liquid surface distance; a capacitive variant is available for irregular tanks.
- Stream — level + temperature samples flow to the GPS tracker (paired) or directly over LTE-M to the cloud.
- Detect — edge rules flag (a) refills > 5% in 60 s, (b) drops > 3% with engine OFF (siphon), (c) low-fuel warnings, (d) economy drift.
- Report — events appear in real time; weekly reconciliation PDF shows issued vs consumed with cost-per-litre impact.
Features
- Multi-tank support — diesel, petrol, AdBlue, lube oil; mixed fuels per vehicle
- Anti-siphon AI — GPS + ignition + level fusion; < 4% false positives
- Refill validation — auto-matches refill events to fuel-card transactions
- Low-fuel alerts — configurable threshold, dispatch + driver app
- Driver scorecard fuel — L/100 km per driver and per route
- Reconciliation PDF — weekly / monthly, signed and time-stamped
- Pair with tracker — works with our GPS Fleet Tracker out of the box
- Open API — REST + webhook to ERP, fuel-card portal, accounting
Use Cases
- Long-haul trucking — biggest siphon target; per-trip variance reporting
- Bus & coach fleets — fixed routes, predictable economy, easy variance detection
- Generator monitoring — site-yard gensets often filled by contractors; tank-level audit
- Construction equipment — bulldozers and excavators in remote sites
- Bulk fuel storage — depot tanks with multiple draw events per day
- School / corporate transport — third-party drivers, expense control
Specifications
- Sensor type: Ultrasonic (non-contact, top mount) or capacitive probe (rod, full-depth)
- Range: 50-2000 mm tank height; ±1% full-scale accuracy
- Sampling: 10-60 s configurable; event-driven push on detected refill / siphon
- Connectivity: Wired to GPS tracker (RS-485 / analog), or standalone LTE-M / NB-IoT
- Power: 9-32 VDC, < 50 mA average; sleep mode for standalone variant
- Environmental: IP67, -30 to +70 °C, ATEX zone-2 variant available
- Material: 316L stainless steel probe, PTFE seals (fuel-compatible)
- Security: AES-128 link, TLS 1.3 to cloud, tamper switch on housing
Product information
| Product name | Fuel Level Sensor |
|---|---|
| Category | Fleet & Transportation |
| Type | IoT Based Product |
| Procurement | Contact / Negotiable |
Customisation options
- Sensor type — ultrasonic non-contact (top-mount), capacitive probe (rod), or hybrid both
- Tank shape — calibration table from manual dipstick, factory profile, or 3D scan
- Fuel type — diesel, petrol, biodiesel, AdBlue, lube oil, kerosene
- Pairing — wired to our GPS tracker, third-party tracker (Teltonika, Concox), or standalone LTE-M
- Alert channels — dashboard, email, SMS, push, IVR call, webhook to ERP
- Reconciliation — weekly PDF, monthly PDF, real-time API to accounting
- Integrations — SAP, Oracle, Tally, fuel-card portals (HPCL, IOCL, BPCL), custom REST
- Service tier — DIY install, on-site fitment, full managed reconciliation service
Ordering & lead time
Standard lead time depends on current stock. For volume orders, please contact our team for a structured quote including BOQ, freight, installation and warranty terms.
Support
Engineering support, installation guidance and warranty claims are handled by our customer success team. Reach us at support@sgtsystems.com or via the channels listed on our Contact page.