Four cameras. One intelligent standalone system.
ST-240 MDVR · 4-Channel AI Fleet Camera System
The ST-240 is a compact 4-channel MDVR supporting up to four 1080p cameras with onboard AI, 4G LTE, GPS, and up to 1 TB storage — full coverage, real-time accountability. One box. Four angles. Total visibility.
4-CH
1080p AHD Recording
AI
ADAS + DSM Onboard
4G + GPS
Built-In Cellular & Tracking
1 TB
SD Card Storage (H.265)
G-Sensor
3-Axis Event Lock
Flexible
Scheduled / Alarm / Manual
The ST-240 MDVR System
Connect up to four 1080p AHD cameras — forward, driver, side, and rear — for complete 360° vehicle coverage on a single MDVR. The ST-240 runs on-board ADAS and DSM AI that
detects lane departure, forward collision risk, distraction, drowsiness, phone use, and smoking, with real-time in-cab audio alerts to coach drivers before incidents happen.
No separate modem required. Stream live video, upload events, and track vehicle location on its own cellular connection with integrated GPS. The single SD card slot supports up
to 1 TB of onboard storage with H.265 compression — weeks of continuous recording without swapping cards. A built-in 3-axis G-sensor detects harsh braking, acceleration, and
impacts, automatically locking event footage with configurable pre- and post-alarm recording.
Choose manual, scheduled, or alarm-triggered recording with configurable pre-alarm (0–60s) and post-alarm (0–3600s) buffers for complete event capture.
What the ST-240 does
Six capabilities that turn four camera feeds into an intelligent fleet safety system.
4-Channel 1080p Recording
Connect up to four 1080p AHD cameras — forward, driver, side, and rear — for complete 360° vehicle coverage on a single MDVR.
AI Driver Coaching Assistance
Onboard ADAS + DSM detect lane departure, forward collision risk, distraction, drowsiness, phone use, and smoking — with real-time in-cab audio alerts.
Built-In 4G LTE + GPS
No separate modem required. Stream live video, upload events, and track vehicle location on its own cellular connection with integrated GPS.
Up to 1 TB SD Storage
Single SD card slot supports up to 1 TB with H.265 compression — weeks of continuous recording without swapping cards.
G-Sensor Event Security
Built-in 3-axis G-sensor detects harsh braking, acceleration, and impacts — automatically locking event footage with configurable pre- and post-alarm recording.
Flexible Recording Modes
Choose manual, scheduled, or alarm-triggered recording with configurable pre-alarm (0–60s) and post-alarm (0–3600s) buffers for complete event capture.
The ST-240 is the hardware. VSS is how you run it.
Powered by VSS — the cloud platform behind every ST-240
VSS is where fleets actually run day-to-day. See every vehicle on a live map, jump into any camera in one click, pull evidence clips in seconds, coach drivers from scored events, and manage maintenance — all from the browser or mobile app. No IT department required. VSS Cloud Platform features include live look-in on any vehicle, 90-day event cloud storage, AI-scored driver reports, route replay with GPS sync, geofencing and alerts, role-based user access, iOS and Android mobile apps, and a REST API for integrations.
Suite and Simple
Whether in the office or on the road, we make it easy to have 24/7 access to both the video feed and the location of your fleet. You can also review historical events with our
remote playback feature.
Live Look-In
See any vehicle’s live camera
feed in one click — from your
desk or your phone.
90-Day Cloud Storage
Event footage is backed up to
the cloud for 90 days — pull
evidence clips in seconds, not
hours.
AI-Scored Reports
Driver events are scored
automatically. Coach from data,
not guesswork.
Route Replay + GPS
Replay any trip on a synced map with GPS breadcrumb trail overlaid.
Geofencing & Alerts
Set geographic boundaries and
get instant notifications when
vehicles enter or leave zones.
Mobile + API
Full iOS and Android apps plus
a REST API for integrations with
your existing fleet tools.
See Everything. Miss Nothing.
A complete camera lineup purpose-built for commercial fleet safety — from AI-powered ADAS and driver monitoring to dash cams and wide-angle exterior coverage. Every angle, every
trip, fully integrated with the VSS platform. Plug in and record from day one.
The ST-240 supports up to four cameras from the full Safety Track camera lineup: the ST-40 ADAS forward camera with WDR color imaging and built-in IR, the ST-41 DMS driver
monitor with low-illumination night imaging, the ST-42 dual-lens dash cam for simultaneous forward + cab recording, the ST-43 mini in-cab view camera, the ST-44 front view
camera with tilt-adjustable mount, the ST-22 rear/side bracket camera with heavy-duty bracket and IR LEDs, the ST-23 side view dome camera for blind-spot monitoring, and the ST24 interior dome camera for full cabin visibility.
Total fleet visibility. Zero blind spots.
Expand your ST-240 with any camera in the lineup — plug in and record from day one. Every camera connects via 4-PIN aviation cable and is fully compatible with the VSS platform.
ST-40 · ADAS Forward
1080P AHD with WDR color imaging. 6mm lens, 63° diagonal FoV. Built-in IR, weather-resistant housing. Detects lane departure and forward collision risk.
ST-41 · DMS Driver Monitor
720P AHD with 1/2.7″ CMOS sensor. 0.1 Lux low-illumination, B&W night imaging. 65° diagonal FoV. Detects distraction, drowsiness, phone use, and smoking.
ST-42 · Dual-Lens Dash Cam
Simultaneous forward + cab recording. 720P or 1080P AHD, compact body. 0.1 Lux low-illumination, 5 IR LEDs, built-in audio and microphone.
ST-22 · Rear/Side Bracket
Wide-angle lens for full rear visibility. 8 IR LEDs for clear night recording. Heavy-duty bracket mount — truck and bus ready. Weather-sealed, vibration resistant.
ST-23 · Side View Dome
Side-mount dome for pillar or body install. 12 IR LEDs for low-light side coverage. Ideal for blind-spot and curbside visibility. Rugged sealed housing.
Built for Every Fleet. Every Role. Every Road.
Extend the power of your ST-240 with purpose-built accessories — driver identification, emergency alerts, in-cab display, and engine diagnostics. One platform. One install.
Total visibility.
The RFID Driver ID reader enables tap-to-identify drivers before a trip begins — log check-ins, track shift times, and confirm who is behind the wheel, all synced to the VSS
platform in real time. The panic button sends an immediate emergency alert with live GPS location to dispatchers and administrators — discreet, durable, and always within reach.
The 7″ in-vehicle monitor mounts a live camera feed directly in the cab, giving drivers real-time rear and side visibility for safer reversing, loading, and passenger boarding.
And the ST-Diagnostic OBD-II & J1939 module plugs into any port to stream live engine data — odometer, fault codes, engine hours, speed, RPM, VIN, and idle monitoring — directly
into the VSS platform.
One platform. Every angle. Every data point.
RFID Driver ID
Contactless check-in. Tap-to-identify drivers, log shift times, confirm who is behind the wheel — synced to VSS in real time.
Panic Button
Instant alert trigger. One press sends emergency alert with live GPS location to dispatch. Discreet, durable, always within reach.
7″ In-Cab Monitor
Live camera feed in the cab. Real-time rear and side visibility for safer reversing, loading, and passenger boarding. No blind spots, no guesswork.
ST-Diagnostic
OBD-II & J1939 vehicle data module. Stream odometer, fault codes, engine hours, speed, RPM, VIN sync, and idle monitoring into VSS.
Recording capacity scales with the number of cameras on the vehicle. All channels are recorded simultaneously at 1080p with loop recording — when the card fills, the oldest
footage is overwritten first.
| SD Card | 4-Channel System | 8-Channel System |
|---|---|---|
| 128 GB | 64 Hours | 32 Hours |
| 256 GB | 128 Hours | 64 Hours |
| 512 GB | 256 Hours | 128 Hours |
| 1 TB | 500 Hours | 250 Hours |
Storage hours assume 1080p continuous recording across all active channels; actual runtime varies with scene complexity, frame rate, and event-triggered high-bitrate
clips.
Daily live-view budget assuming steady use across the month. Occasional longer sessions are fine — this is the average hours per day the plan supports without overage.
| Monthly Data Plan | 4-Channel System | 8-Channel System |
|---|---|---|
| 2 GB / Month | 0.5 HR / Day | 0.25 HR / Day |
| 10 GB / Month | 2.5 HRS / Day | 1.25 HRS / Day |
| Unlimited | Unlimited | Unlimited |
Streaming hours assume average bitrate per channel on live view; HD live streams of stationary scenes will extend these figures, while continuous motion will shorten
them. Unlimited data plan provides unrestricted live-view streaming subject to network availability. Figures are provided for planning purposes.
ST-240 FAQ
Q: What cameras are compatible with the ST-240?
A: The ST-240 supports up to four cameras from the Safety Track lineup, including the ST-40 ADAS forward camera, ST-41 DMS driver monitor, ST-42 dual-lens dash cam, ST-43 mini in-cab view, ST-44 front view
camera, ST-22 rear/side bracket camera, ST-23 side view dome, and ST-24 interior dome camera. All connect via 4-PIN aviation cable and are plug-and-play with the MDVR.
Q: Does the ST-240 require a separate modem or hotspot?
A: No. The ST-240 has built-in 4G LTE connectivity and integrated GPS. There is no need for a separate modem, hotspot, or cellular device. Simply insert an active SIM card and the system streams live video,
uploads events, and tracks vehicle location on its own cellular connection.
Q: How long can the ST-240 record before the storage fills up?
A: With a 1 TB SD card and H.265 compression, a 4-channel system recording at 1080p continuously can store approximately 500 hours of footage before loop recording overwrites the oldest files. A 512 GB card
holds roughly 256 hours, and a 256 GB card holds about 128 hours. Actual capacity varies with scene complexity and frame rate.
Q: What AI features does the ST-240 include?
A: The ST-240 has onboard ADAS (Advanced Driver Assistance Systems) and DSM (Driver Status Monitoring) AI. ADAS detects lane departure and forward collision risk. DSM detects driver distraction, drowsiness,
phone use, and smoking. All detections trigger real-time in-cab audio alerts to coach drivers in the moment, and events are scored and logged in the VSS platform for manager review
Q: What is the G-sensor and how does it work?
A: The built-in 3-axis G-sensor detects harsh braking, rapid acceleration, and impact events. When triggered, it automatically locks the event footage so it cannot be overwritten by loop recording. You can
configure pre-alarm (0–60 seconds) and post-alarm (0–3600 seconds) buffers to ensure the complete event is captured before and after the trigger
Q: Can I watch live video from the ST-240 on my phone?
A: Yes. Through the VSS mobile app (available on iOS and Android), you can tap into any camera on any vehicle in your fleet with one click. The live look-in feature streams real-time video from the ST-240’s
cameras to your phone or desktop from anywhere.
Q: What is VSS and is it included with the ST-240?
A: VSS (Vehicle Surveillance Suite) is Safety Track’s cloud platform that provides live look-in, 90-day event cloud storage, AI-scored driver reports, route replay with GPS sync, geofencing and alerts, role-based user
access, and a REST API for integrations. VSS is the software that runs the ST-240 — it is included with your Safety Track service and accessible from any browser or the mobile app
Q: What recording modes does the ST-240 support?
A: The ST-240 supports three recording modes: manual (start and stop on demand), scheduled (set recording windows for specific times or routes), and alarm-triggered (automatically record when the G-sensor or
AI detects an event). Each mode can be configured with pre-alarm (0–60s) and post-alarm (0–3600s) buffers to capture complete context around events
Q: Can the ST-240 connect to vehicle diagnostics?
A: Yes. With the ST-Diagnostic OBD-II and J1939 vehicle data module accessory, you can plug into the vehicle’s diagnostic port to stream live engine data directly into the VSS platform. This includes odometer
readings, DTC fault codes, engine hours, speed, RPM, VIN sync, and idle monitoring — paired with the video the ST-240 is already capturing.
Q: What are the ST-240's technical specifications?
A: Channels: 4 × 1080p AHD. Storage: 1 × SD, up to 1 TB. Connectivity: 4G LTE, GPS, Wi-Fi. AI: ADAS + DSM onboard. Compression: H.265 / H.264. Power: 8–36V DC. Dimensions: 153 × 135 × 42 mm. Operating
temperature: −20 °C to 70 °C.
See the ST-240 live in a 15 minute demo.
Book a walkthrough — real cameras, real VSS dashboard, real fleet data.
