DALRC propeller tightning tool support 8MM/10MM nut
http://www.wenjunting.comDALRC 5.8g right handed 4 cloverleaf polarized antenna
QOSD is a completely separated, built in all direction sensor system, simple to operate, online upgrade, Do not need any supports from Flight controller but also can work independently, with compass, barometer, gyroscope as well as accelerometer built-in, complete flight data display
