RC Logger Digital Pitch Gauge 2 Pitch and Roll measurement 3 measure modes (Main rotor blade / Tail rotor blade / Swashplate) 9 memory profiles to preset target angles; Countdown (3 secs) to hold display or set zero / target angle Rotating display; Calibration function; Metal pin pointer for quick visual check Auto power-off; Buzzer alert for target angles Flexible installation via inserted magnet or screw nut; All parts packed safely in a handy and durable protection case for day-to-day use