Ciao , qualcuno l'ha provato?
LC-Tracker
Wireless battery tracker (6s & up to 300mtr) 868mhz
Hobbycity Online R/C Hobby Store : Wireless battery tracker (6s & up to 300mtr) 868mhz $29.95
Wish you could know your Lipoly battery voltage while you are flying?
Want to be able to accurately know when your pack is about to drop voltage?
The Wireless battery tracker monitors your lipoly via the charge plug and sends back a signal to your reciever. Should one of your cells drop below 3.6v the LED for that cell will turn Red. Once the cell drops below 3v the LED will flash and the warning buzzer will beep, signaling you to land as soon as possible.
The transmitter operates on 868.0Mhz FM band and can monitor 2S to 6S batteries.
Spec.
Transmitter Weight: 7g
Receiver Weight: 35g (this is the part you keep in your pocket)
Signal distance: Around 300-400mtr
*How to use.
As the video shows, simply plug the transmitter in, and turn the receiver on, then while the lights are flashing, press the button to select how many cells you want to monitor.