User Instructions

Instruction Book Of RDT401B 2017-T401-E005
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3. Calibration
Adjust the angle of RDT401B up and down to ensure that the driver's face is in the center of
the screen of an external display.
4. Work status
1) After the vehicle starts, RDT401B will start immediately; after about 8 seconds, it will make a
sound indicative of start-up completion, indicating that the product is ready for work.
2) After the vehicle’s speed reaches the set speed value, the product will enter the monitoring state,
monitor the driver in real time, and issue fatigue warning; according to factory default settings,
when the speed exceeds 15km/h, the device will start a state detection function (except for the type
of posture warning) and when the speed exceeds 30km/h or more, posture calibration will be
performed.
After the posture calibration is completed, all warnings can be triggered.
Notes: the starting speed of fatigue warning function for RDT401B is 15km/h.
5. Parameters Configuration for SD (TF) card
Through the system upgrade, you can adjust parameters of the device, such as volume, sensitivity,
time zone.
III. Electrical Properties
Table 3
RDT-401 Electrical Properties
Operating Voltage
+9V ~ +36V
Rated Power
4W
Max Power
5W
Operating Temperature Range
-20℃~ 70℃
Storage Temperature Range
-30℃~ 85℃
Working Humidity
0 ~ 90 RH%±5%
Bracket 1
Bracket 2
Round head screw
Host
Figure 4. A schematic diagram of parts