We suggest the AW-20L3 model !!
Three Sensors, Control Box, Buzzer, Display
$174.95
msrp:

The AW-20L3 model includes three sensors, a control box, a buzzer, and a visual display. A drill bit will be added in the Pro-series. Sensors are chosen by type and color.
*System activated automatically when reverse gear is engaged. *Detection distance 4in. to 59in. *Acoustic signal increases in frequency when obstacles move closer. *7 LED lights in 3 colors of green, yellow and red turn on in order when reversing closer to obstacles. *Obstacle orientation indication.
Sale Price:
$114.95
Series
Type of Sensors
Color
This kit includes:

              *A
FREE "INTRODUCTION TO RDD" Video Disc(User Guide)
              *An
RDD User Manual
              *Plastic Line for feeding wires
              *Black Electrical Tape & foam tape
              *Wire clips, zip ties & spare fuse
              *One (1) year limited Warranty information
              *Drill Bit depending on your sensor(Pro-series)
SENSOR REFERENCE --Click thumbnail to view--- or Click here for more details on our sensors
AW-S01                AW-20E0                AW-20E5                AW-25E5                AW-25E12                AW-H02
Click below for more Models
--  AW-10B2  --  AW-10B3 --  AW-10B4  --
--  
AW-20L2  --  AW-20L3  --  AW-20L4  --  
--  
AW-30L2  --  AW-30L3  --  AW-30L4  --  
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