ELD Device | Products

Overview

SGT ELD Device is an FMCSA-style Electronic Logging Device that automates Hours-of-Service (HoS) record keeping, Driver Vehicle Inspection Reports (DVIR), and IFTA fuel-tax mileage for commercial motor vehicles. It plugs into the ECU (J1939 for heavy trucks, OBD-II for light) and pairs with an in-cab tablet so drivers no longer keep paper logbooks and dispatchers stop chasing missing pre-trip checks.

Designed for fleets that must satisfy a regulator (US DOT / FMCSA, Canadian ELD mandate, custom national rule-sets), the device runs a tamper-evident, SHA-256-chained log on board, buffers events when the cellular link is down, and can hand off a 7-day RODS export to a roadside inspector over web-service, email or a USB stick attached to the OBD port.

Automatic HoS — duty status from J1939 / OBD-II, no manual button-pushing at start of drive
DVIR pre-trip / post-trip — guided checklist, photo of defects, push to workshop
IFTA mileage — per-state miles computed from GPS + odometer, quarterly export ready
Tamper-evident — every event signed and chained; edits captured separately as an audit record

How It Works

In-Cab ELD Unit — small device hard-wired to the OBD-II or 9-pin J1939 connector, paired over Bluetooth to a driver tablet. The tablet displays the four-quadrant duty clock (Drive / On-Duty / Sleeper / Off), HoS countdowns, DVIR checklist and IFTA mileage map.
Rule Engine — reads ECU PGNs for speed, odometer, engine-on / engine-off. A state machine auto-promotes to Driving above 5 mph for 3 minutes; auto-demotes to On-Duty after 5 minutes stopped. Driver can edit with reason-code, edits are logged separately.
Compliance Cloud — receives event stream, aggregates per fleet and per driver, produces FMCSA-format CSA reports, IFTA Q1–Q4 packets, DVIR archives, and driver-fitness dashboards.
Driver / Safety Manager — driver tablet shows break-in countdown and rest-stop suggestions; safety manager gets HoS warnings before a violation, and any DVIR defect is auto-routed to the maintenance workshop.

Features

FMCSA-registered ELD profile — supports 8-day, 14-day and 16-hour exemptions; sleeper-berth split; adverse-driving
Multi-rule-set — US FMCSA, Canadian ELD, custom national HoS profile (configurable)
Roadside transfer — eRODS web-service, email, or USB-via-OBD output for inspector
DVIR with photo — branded checklist per vehicle class, photo upload, defect routed to workshop
IFTA quarterly — state-crossings detected by GPS-on-network, fuel purchase reconciliation
Tamper-evident log — SHA-256 hash chain, edits captured as separate events with reason
Offline buffering — 32 MB on-device log, 30+ days without network
Driver coaching — harsh-brake, hard-cornering and idle-time events for safety score

Use Cases

US interstate trucking — FMCSA-compliant ELD with eRODS hand-off and CSA reporting
Canadian fleets — Transport Canada ELD mandate certified profile
Passenger-carrier bus & coach — sleeper-berth split logging, 10-hour daily limit
Owner-operators — single-vehicle install with self-service dashboard and IFTA export
Cross-border trucking — automatic rule-set switch on border-crossing geofence
Yard / construction fleets — DVIR-only configuration for non-public-road vehicles

Specifications

Vehicle interface: J1939 9-pin Deutsch (heavy duty), OBD-II (light / medium), 12/24 V tolerant
Connectivity: 4G LTE Cat-4 with 2G fallback, Bluetooth 5.0 to tablet, Wi-Fi 802.11n for fleet sync
Tablet: 8" rugged Android, 1280×800, IP54, optional cradle mount
GNSS: GPS / GLONASS / BeiDou, 2.5 m typical accuracy
Storage: 32 MB tamper-evident on-device log buffer · cloud retention 6 mo standard, 7-year archival option
Power: 9–32 VDC, <3 W typical, ignition-aware wake/sleep
Environmental: −20 to +70 °C operating, automotive vibration spec, E-mark
Compliance: FMCSA-registered, Transport Canada ELD-compliant, AOBRD migration tooling