Below are the LED light definitions for the NightOwl Vehicle Tracker. 
NOTE: Some NightOwl models do not have LED's. 

LED 1 (Cellular LED - Orange) Definitions
ConditionLED 1
Modem OffOff
Modem On - Searching for serviceSlow Blinking
Network AvailableFast Blinking
Registered but not connectedAlternates from Solid to Fast Blink every 1s
Registered and connectedSolid

LED 2 (GPS LED - Green) Definitions
GPS OffOff
GPS OnSlow Blinking
GPS Acquiring LocationFast Blinking
GPS Fix AcquiredSolid