This device is an accessory for our Close Proximity Warning System and is used to deactivate the system above a pre-set speed.

Using dip switches the deactivation speed can be set on the unit from 1.5 mph up to 64mph.

The calibration is based on 4 pulses per metre – the output provided by most Tachographs – but other calibrations can be compensated for by applying the appropriate factor to the speed setting.

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