HY Technologies 323-04 User Manual
User’s Manual
Backup Parking Sensor System
4 Rear In-Bumper Type Sensors
Wireless Digital Display with Built-in Audible Alert
For Cars, VANs, SUVs, and Trucks
MODEL 323-04
CE FCC ISO9001
HY Technologies y http://parkingsensors.net
Copyright 8 2006 HY Technologies y Milpitas y California y USA All Rights Reserved
Backup Parking Sensor System
4 Rear In-Bumper Type Sensors
Wireless Digital Display with Built-in Audible Alert
For Cars, VANs, SUVs, and Trucks
MODEL 323-04
Included in the Box
¾ 4x Sensors with attached cable and 2-pin mini
plug. Cable Length: 2.5m (8.2ft)
¾ 4x Wedge-Shaped Plastic Sensor Spacers for
non-vertical bumper
¾ 1x Main Control Box
¾ 1x Power Cable for Main Control Box with 3-pin
mini plug. Cable Length: 1.0m (3.3ft)
¾ 1x 3M Double-Sided Self-Adhesive Pad for
Main Control Box
Features
¾ 4 Rear Sensor Backup Parking System
¾ In-bumper type sensors to give the look of factory
installed system
¾ System activated when vehicle is in reverse
¾ Wireless LED Digital Display with built-in audible
alert (beeper) and On/Off switch
Specifications
¾ CE FCC ISO9001 Approved
¾ Wireless Display RF Range: 0~20m (65.6ft)
¾ RF Frequency: 433KHz
¾ Operating Voltage: DC 10.5V ~ 16V
¾ Detecting Range: 0.3m ~ 1.5m (1ft ~ 4.9ft)
Displayed as 0.0 when less than 0.3m (1ft)
¾ Measuring Error: ± 0.1m (or 0.1ft)
¾ Sensor Detection Angle: 90°
¾ Detection Response Time: 300ms
¾ Sensor Diameter: Φ21mm (13/16”)
¾ Audible Alert when obstacle within: 0.1m ~ 1.5m
(0.3ft ~ 4.9ft)
Note: The specifications are for reference only. They may be changed without prior notice.
Tools Needed
Φ21mm (13/16”) drill bit (include), drill, tape measure, chalk or marker, wire stripper, vinyl electrical tape,
cable/wire ties, voltage meter, screw driver set, pliers.
Note: Use a bi-metal 21mm (13/16") drill bit (not included) if drilling through metal bumpers.
¾ 1x Wireless Digital Display with attached power cable
(2.0m or 6.5ft) and cigarette lighter type plug,
double-sided self-adhesive pad on bottom of display
¾ 1x Drill Bit (Hole Saw)- Φ21mm (13/16”)
¾ 1x User’s Manual
¾ 7 LED Lights (Green/Yellow/Red) on each side of the
display indicating orientation of obstacles and
Safe/Warning/Stop zone
¾ Designed for cars, VANs, SUVs, and trucks
¾ Distance display in feet or meters (optional)
¾ Limited 12 Month Warranty
¾ Ultrasonic Frequency: 40Khz
¾ Audible Alert Volume: 73 db
¾ Maximum Power Consumption: 3.6W
¾ Current Consumption: 50~180mA
¾ Operating Temperature Range: -30 ~ +70°C
¾ Dimensions of the Wireless Display: Width x Depth x
Height = 13.4cm x 3.0cm x 2.8cm (5.2" x 1.2” x 1.1")
¾ Dimensions of the Main Control Box: Width x Depth x
Height = 9.8cm x 7.0cm x 2.1cm (3.8” x 2.7" x 0.83")
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How the System Works
Fig. 3 Main Control Box, Wireless LED Display, and Wiring
Fig.1 Mounting Height and Position of Sensors
H = 50 ~ 80cm (20” ~ 32”)
L1 = 6 ~ 15cm (2” ~ 6”)
L2 = L3 = L4 or L2 = L4 = 0.3L, L3 = 0.4L
Ground
50 ~ 80cm (20” ~ 32”)
Sensor Center Line
Parallel to Ground
Sensor
Sensor Mounting Height
Fig.2 Mounting Height and Angle of Sensor
L2
H
L1 L3 L4
L1
Ground
L
D
C
BA
Sensors
DCBA
Back Up Light
Red (+) 12V
Black ( - )
or Chassis Ground
Main Control Box
To Cigarette Lighter
(+12V)
A B C DPWR
Beeper On/Off Switch on Back of Display
R
L
8.8
Wireless LED Display
Power Plug
Power Plug Sensor Plugs
The Backup Parking Sensor System determines obstacle distance by measuring the time needed for the
ultrasonic wave emitted by a sensor to reach an obstacle and for the sensor to receive the ultrasonic wave
reflected from the obstacle. Given the speed of the ultrasonic wave, the system can then calculate and display
the distance between the sensor and the obstacle.
To have the look of factory installed system, the system comes with 4 in-bumper type sensors to be installed in
the rear bumper by drilling holes through the bumper. The main control box is powered by tapping into the
back up light wires so that the system will work only when vehicle is put in reverse. It is supplied with a
wireless LED digital display which shows the exact distance from an obstacle and eliminates the wiring between
the display and main control box. The wireless display can be mounted up to 20m (66 feet) away from the main
control box (still requires its own +12V power supply). This is especially convenient for installation on long
vehicles. The wireless display gets its power from cigarette lighter, ACC or ignition switch. Seven (7) LED
Lights (3xGreen/2xYellow/2xRed) on each side of the wireless display indicate both orientation of obstacles and
Safe/Warning/Stop zone. The audible alert (beeper) with on/off switch is built in the wireless display. It beeps
faster as vehicle gets closer to obstacle and sounds continuously when vehicle is within 0.3m (1ft) from obstacle.
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