Helpful hints – Gemini Industries Gemtek PT300 User Manual
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Helpful Hints
• For faster charging, turn your unit Off while charging or remove the battery
and charge it directly using your desktop charger. (Note: Unit will not operate 
while in Off position or with the battery removed.)
• Signal light will always be red when the unit is in the On position while
charging, even when the battery is fully charged.
 • Signal light sequence when unit is turned On:
 • Signal light stays solid blue for approximately 2 minutes while searching 
for a GPS signal
 • Signal light blinks blue to indicate a valid GPS signal has been received
 • Signal light blinks green 4 times to indicate a valid GSM (cellular) signal
 • Signal light blinks blue/green alternately to indicate normal standby 
mode, ready to use
 • Unit is always searching for GPS signal, even in normal standby mode.
 • To test for GPS and/or GSM (cellular) signals while in normal standby mode, 
press the “Test” Button.
• Blue light stays on for 4 seconds if GPS signal is OK (If no GPS signal,
then signal light blinks blue for 20 seconds).
• Green light stays on for 3 seconds if GSM (cellular) signal is OK (No
green light if no GSM signal).
• Geofence and SOS Buttons must be held for at least 4 seconds, other buttons
press for 2 seconds.
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