User Manual

Page 6 of 14
2.2 LED Behaviors
Bluetooth LED (Blue)
Status Description
Blink once per three seconds Not linked
Blink once per second Linked
GPS LED (Green)
Status Description
Blink once per second Position fixed
Steady on Position not fixed
Power LED (Red/Orange)
Status Description
Red light steady on Battery low
Off Battery good
Orange light steady on Battery charging
2.3 Power Button
Action Function
Press and hold the button for 1 second while off Power turned on
Press and hold the button for 1 second while on Power turned off
2.4 Power-saving function
When you start the power of the Bluetooth GPS Receiver BT-821, if the Bluetooth is not
connected to any devices within 10 minutes, BT-821 will turn off the power
automatically, and all the LED will go off simultaneously.