Search This Supplers Products:Driver Fatigue MonitorAI DashcamADAS Anti-CollisionAI MDVRCar Camera
- Home
- About us
- Products
- DMS (Driver Monitoring System)
- ADAS (Anti-Collision System)
- AI Dashcam
- AI MDVR
- Mobile DVR
- BSD (Blind Spot Detection System)
- AVM (360° Around View Monitor)
- Radar Detection System
- UWB Proximity Warning System
- APC (AI Passenger Counter)
- Vehicle Camera
- AI Camera
- Wireless Camera
- Vehicle Monitor
- Accessories
- Faqs
- Fleet Solutions FAQ
- Service FAQ
- OEM&ODM
- Logistics and transportation FAQ
- Vehicle Manufacturer FAQ
- Mining Fleet FAQ
- Hazardous Chemicals Fleet FAQ
- School Bus Fleet FAQ
- Public Bus Fleet FAQ
- Forklift Fleet FAQ
- Insurance FAQ
- Government and Public Safety FAQ
- Anti-collision solution FAQ
- Anti-Fatigue Solution FAQ
- Blind Spot Solution FAQ
- 360-degree Detection Solution FAQ
- Vehicle Surveillance Video Solution FAQ
- Vehicle Positioning Solution FAQ
- In-vehicle Camera Solution FAQ
- News
- Certificate
- Contact us
MR688B Standalone Driver Monitoring System
- group name
- DMS (Driver Monitoring System)
- Min Order
- 1 piece
- brand name
- AlwayCare Commercial Fleet Safety Manufacturer
- model
- DMS-MR688B
- Acceptable payment methods
- T/T, PayPal, Westem Union, Cash
- update time
- Tue, 27 Oct 2026 20:29:40 GMT
Paramtents
Voltage 12/24V
Optional I/O or RS232
Size 91.5x42.5x127.5mm
Application Suitable for All Vehicles
Operating Temperature -10℃ ~ 50℃
Warranty 15 Months
Packging & Delivery
-
Min Order1 piece
Briefing
Detailed
MR688B Standalone Driver Monitoring System
MR688B standalone DMS gives real-time fatigue, distraction and absent-driver alerts for 12/24V commercial vehicles, and can work alone or with an MDVR. Alerts go to the driver only; the system does not control the vehicle.
- 15-month warranty
- IATF 16949 certified factory
- OEM / ODM customization
- Suitable for all vehicles
Final configuration (version, interfaces, accessories) is confirmed in your quotation.
What MR688B Delivers
A compact standalone driver monitor with voice alerts and flexible outputs.
Alerts the driver to fatigue and distraction
A non-contact infrared camera tracks the driver’s eyes and face. It warns about micro-sleep, looking away, no portrait and overspeed. Alerts go to the driver only; the system does not control the vehicle.
- Fatigue and drowsy eye closure
- Distraction, looking away or down
- No portrait, camera covered or driver absent
- Overspeed warning
Voice, LED and seat vibration
Built-in voice prompts and an LED indicator alert the driver. An optional vibration cushion adds a physical wake-up alert, and an adjustable speed gate reduces alarms at low speed.
- Built-in voice prompts and buzzer
- Visual LED indicator
- Optional vibration cushion
- Adjustable activation speed
Standalone, I/O, RS232 or video output
Choose a version that works on its own, sends I/O alarm signals to a GPS tracker, sends RS232 data and event photos, or outputs one channel of video to an MDVR.
- Standalone in-cab alerts
- I/O alarm output
- RS232 data and event photos
- 1-channel video output to MDVR
Specification drawing
Dimensions, wiring and interfaces for installation planning.
- Engineering drawing
- Size 91.5 × 42.5 × 127.5mm
- 12/24V input
- Operating temperature −10℃ to 50℃
Choose the MR688B Version
Five versions share the same driver-monitoring core. They differ in outputs.
| Version | Voice alerts | I/O alarm output | RS232 data + photos | 1-ch video output | Best for |
|---|---|---|---|---|---|
| MR688B-SVCivil standard | — | — | — | Standalone in-cab alerts, powered by a cigarette lighter adapter. | |
| MR688B-PVCommercial | — | — | Alarm signals to an existing GPS tracker or AVL system through a 5-pin hardwire cable. | ||
| MR688B-RS232Serial data | — | — | Sends alarm signals and event photo snapshots over RS232. | ||
| MR688B-V4-PVCommercial video | — | Adds a 1-channel analog video stream for an MDVR through a 4-pin aviation connector. | |||
| MR688B-V4-PV-RS232Full function | MDVR video output, RS232 data and photos, and I/O alarms together. |
Technical Specifications
Values follow the factory datasheet. Your quotation confirms the exact configuration.
Alerts
- Triggers
- Driver fatigue, driver distraction, no portrait, overspeed warning
- Alert methods
- Built-in voice prompts and buzzer, LED indicator, optional vibration cushion
- Alert mode
- Alerts to the driver only; the system does not control the vehicle
Interfaces
- Optional interface
- I/O or RS232 by version
- Video output
- 1-channel analog video on V4 versions (4-pin aviation connector)
- Power connection
- Cigarette lighter adapter or 5-pin / 4-pin hardwire cable
Hardware
- Voltage
- 12/24V
- Size
- 91.5 × 42.5 × 127.5mm
- Operating temperature
- −10℃ to 50℃
- Application
- Suitable for all vehicles
Support
- Warranty
- 15 months
- Versions
- SV, PV, RS232, V4-PV, V4-PV-RS232
- Customization
- OEM / ODM on request
Compatible Accessories
Hand setting instrument
A field tool to set alarm sensitivity, activation speed, volume and overspeed threshold, and to upgrade firmware.
Vibration warning cushion
A seat cushion that vibrates with a fatigue alarm.
Metal bracket
A reinforced metal mounting bracket for rugged dashboards.
Dustproof lens protector
Keeps dust off the lens in mining and construction vehicles.
USB-to-RS232 debug adapter
A cable to connect RS232 versions to a computer for testing.
MR688B Versus Other DMS Models
Values come from each product's factory datasheet.
| Model | Type | Power | Operating temp. | Optional interface | Video | |
|---|---|---|---|---|---|---|
| MR688B (this model) | Standalone DMS | 12/24V | −10℃ to 50℃ | I/O or RS232 | Output on V4 versions | |
| MR810 | Standalone DMS | 12/24V | −20℃ to 70℃ | I/O or RS232 | 1280×720 recording | View → |
| MR830 | All-in-one DMS, optional ADAS and BSD | 12/24V | −20℃ to 70℃ | I/O or RS232 | 1920×1080 recording | View → |
Frequently Asked Questions
Need technical clarification? Email safety..........com or send an inquiry.
Which MR688B version should I choose?
SV works on its own. PV sends I/O alarm signals to a GPS tracker. The RS232 version sends data and event photos. V4 versions add a 1-channel video output for an MDVR. Your quotation confirms the version.
What does MR688B detect?
Driver fatigue, driver distraction, no portrait (camera covered or driver absent) and an overspeed warning. Alerts go to the driver only; the system does not control the vehicle.
How is it powered?
It runs on 12/24V, through a cigarette lighter adapter or a 5-pin / 4-pin vehicle hardwire cable depending on the version.
Can it connect to an MDVR?
V4 versions output 1 channel of analog video through a 4-pin aviation connector for MDVR recording, alongside I/O alarm signals.
How do I set the alarms?
The hand setting instrument lets engineers set alarm sensitivity, activation speed, volume and the overspeed threshold, test the alarm indicators and upgrade firmware.
Which warranty applies?
MR688B is supplied with a 15-month quality warranty. Sample units for road testing are available; contact us for details.
Complete the In-Vehicle Safety Stack
Configure the Right System Around Your Vehicles
Send your vehicle types, fleet size and target functions. We reply with a configuration and quotation.