This happens when device configuration has not done properly .Solution described below .
Please connect the device to system and load the previous added settings. see below image
Go to I/ O option and Select the Speedometer / Speed kmph option. see below image
Now add the High Speed Level to 150
Now add low Low Speed Level to 100
Events: On Both and save it . see below image
Note: All above settings are for Find'n'Secure device model VT60, VT60+, VT61, VT62, VT62+, VT80 only