1. Connect the lost alarm between the servo (the one which runs when flying) and the receiver, i.e. act as a servo extension cord

2. Turn on your transmitter

3. Turn on your receiver then you will hear two beep sound

4. To test if it is functioning:

Do not move any of the control stick on the transmitter for 1 min. or simply turn it off

You will hear a continuous beep sound after 1 minute

If you ignore the continuous beep sound for around 2 minutes, the beep sound will change to a louder V sound

It will stop once you move the control stick or power off the receiver

5. If you cannot find you plane, do not move the control stick or turn off your transmitter for 1 min for the alarm sound

6. By the tracking sound, you will be able to locate your RC plane / Helicopter

7. To stop the alarm: Move the control stick or Power off the receiver

Can be connected to any kinds of servo

Should be connected to the servo that runs when flying