Push Notifications Don't Stop Violations—Voice Calls Do
An automated voice call breaks through driver distraction, forcing immediate awareness to pull over, take a break, or change duty status before the 11-hour drive or 14-hour duty limit is hit.
Fleet safety · Active intervention
Sentinel HOS
Stop HOS violations before they happen — without replacing your ELD.
See every driver’s HOS clocks in real time. Get the call before the violation. Prove every decision later.
The Core Difference
Active Risk Prevention
Traditional ELD platforms act as passive recorders. They push tablet banners or send back-office alerts that drivers easily swipe away or ignore. Sentinel is an active intervention system that automatically calls drivers before a threshold is breached, records their acknowledgment, and builds an audit-proof paper trail.
From "We Notified the Driver" to "We Prevented the Risk"
Sentinel creates an indisputable audit trail showing automated, proactive outbound outreach was triggered, proving maximum due diligence in the event of an audit.
Frees Dispatch from Playing "HOS Babysitter"
Sentinel handles 100% of the initial driver warnings automatically. Dispatch is only escalated if a driver fails to respond or remains on the road past a critical threshold.
Ingest → Evaluate → Alert → Explain
How It Works
- 1
Keep Your ELD
Sentinel is the compliance layer, not another ELD swap. We integrate with your existing Geotab or Samsara ELD.
- 2
Independent HOS Engine
Evaluates duty-status logs and GPS breadcrumbs against a deterministic rule engine. Pure math, not AI.
- 3
Voice & SMS Alerts
Reaches the driver in English or Spanish via Twilio IVR voice calls or A2P 10DLC compliant SMS before they go out of service.
- 4
Immutable Audit Trail
Canonical logs and audit records are append-only and inputs are SHA-256 hashed.
Rules Coverage
Compliance that can be reproduced
Built for FMCSA property-carrying and Texas intrastate rules. If it isn’t reproducible, it isn’t compliance.
Federal Interstate (49 CFR Part 395)
11-hour driving, 14-hour duty window, 30-minute break, 60/70-hour weekly, 34-hour restart, and Split sleeper matching.
Federal 150 Air-Mile Short-Haul
Tracks the 8-in-30 ELD requirement, 14h/16h release windows, and radius via GPS.
Texas Intrastate
12-hour driving, 15-hour accumulated duty, 70h/7-day weekly, and Texas sleeper split.
Texas 150 Air-Mile Short-Haul
12-hour release window with GPS fail-closed exemption patterns.
Advanced Tracking
Adverse driving conditions (13h/16h), personal conveyance, yard-move abuse heuristics, and form-and-manner findings.
Product Tour
The Safety Dashboard
Home Fleet Map
See last-known positions, last-30-day warning/violation counts, and a live telematics feed.
Driver Day Grids
Geotab-style daily grids showing Off, Sleeper, Drive, and On-duty.
HOS Clocks on the Day
Gauges for remaining time, shift start, and 34-hour restarts.
Explain Any Alert
Click a warning to see limit gauges, shift windows, and a step-by-step “how it was calculated” trace with CFR citations.
Route Maps
GPS breadcrumb paths for driver-days.
Integrations
Same logs, same answer, every time.
Geotab
LiveDuty-status logs + GPS breadcrumbs + historical backfill.
Samsara
LiveHOS watermark feed + GPS vehicle stats + history.
Motive
Coming SoonPricing
Straightforward fleet pricing
Starter
$15
/ truck per month
Ingestion, web dashboard, SMS alerts (up to 25 vehicles, ~2 min poll).
Trust & Security
Deterministic by design.
Sentinel HOS uses deterministic rule packs and an independent HOS engine, ensuring the same duty logs always produce the same clocks and findings. We are an independent clock, audit trail, and alert layer—not a "best guess" ML scoring tool.