Connection of the Ranger to the vehicle’s horn
1. Locate the SafteyZone cable of the Ranger. Depending on the Ranger model, the cable either attaches to
a circular connector on the rear of the counting unit or it connects to the Ranger’s Power/Signal cable.
Connect the cable to the Ranger.
2. Locate the one of the horn activation wires of the vehicle. This can either be a horn wire in the steering
column, or it may be more convenient to attach to it at the vehicle’s fusebox. This wire should be on the
“low” side of the horn relay, which runs between the horn relay and the horn switch in the steering
column.
3. Verify that you have the proper wire by conducting the following test:
a. Monitor the voltage on the wire without the horn being activated. The voltage should be
approximately 12 volts, pulled up to 12 volts by the horn’s relay coil. The key may have to be in
the ON or Accessory position to have voltage to the horn circuit.
b. Activate the horn. Verify that the voltage on this wire is pulled to ground (0 Volts).
4. Connect the black wire of the SafetyZone cable to the vehicle’s ground in the vicinity of the place where
you will connect to the horn circuit.
5. Connect the red wire of the SafetyZone cable to the horn circuit in the place you identified in a) and b)
above using a T-tap or other method that does not hurt the integrity of the horn connection. Do not sever
the vehicle’s horn wire.
6. Test the SafetyZone using one of the tuning forks supplied with the Ranger.
a. Set the SafetyZone alert speed to a speed that is lower than the tuning fork’s speed.
b. Set the SafetyZone alert distance to 100 yards.
c. Enable SafetyZone by pressing the Alert button on the remote control.
d. Ring the tuning fork in front of the radar’s rear antenna and verify that the horn of the vehicle is
sounded when the radar shows the “THREAT” alert message on its face.
7. Change the SafetyZone speed and distance settings to a level that is consistent with the areas where
speeds are anticipated to be enforced.
Connection of Ranger to an auxiliary alert device
To connect the SafetyZone alert of the Ranger to an auxiliary alert device (horn, siren, etc.), consult the
instructions supplied with the device.
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