32
1
ON
2
3
4
15
CHARGING
POWER
STATUS
RF
PULL-PUSH
MODE1
MODE2
LOCK/BEACON
OFF
120
MIN
MAX
STALL FORCE
CLOSE TIME
SET
LIMIT
LEARN
REMOTE
AUX
OUT
SOLAR
PANEL
18VAC
RECR
GRN
BL
K
RED
EXI
T
SAFETY
EDGE
CY
CL
E
COMMO
N
LINK
Wiring the Gate Opening
Driveway Sensor to the
Mighty Mule 350
Wire from Gate Opening Sensor
Twisted SHIELD
BLACK
RED
to
BLUE
YELLOW
Wire Nut
to EXIT
Together to
COMMON
AUX OUT (+)
The Gate Opening Sensor is designed for residential and agricultural applications and is compatible with Mighty Mule®
automatic gate openers (see Sensor Box for model compatibility). The Sensor is an electromagnetic sensor, which offers 'hands
free' operation of the Mighty Mule® Gate Opener with a 12 ft. radius of detection of vehicles in motion.
Mighty Mule Gate Opening Sensor
(FM138)
FINAL STEP
When everything has been connected to the opener...
replace the control board access cover.
If you were working with the opener
with the control board access facing up,
remove the opener arm from both mounts
and remount it in the upright position
(control board cover facing down).
Failure to remount opener in the up right
position will allow water to enter the
opener and cause damage to the opener
control board.
Make sure the power
switch to the opener
is turned OFF before
connecting sensor
wiring to the Mighty
Mule 350 terminal
blocks.
The wiring cable that
comes with the Mighty
Mule Gate Opening
Sensor has four colored
wires and a braded wire
shield around them.
Stripback a few inches of
the vinyl (black) outter
cover to expose the
braided SHIELD. Cut the
SHIELD down one side
and twist as shown in illustration. Connect the twisted SHIELD, the YELLOW, the BLACK as well as a separate
length of wire, with a WIRE NUT. The other end of the single length of wire is connected to the COMMON
terminal on the Mighty Mule 350 control board.
Connect the RED wire from the sensor to the AUX OUT (+) terminal, and the BLUE wire to the EXIT terminal
on the Mighty Mule® 350 control board.
