A leveller does what it says on the tin...it will pick up small differences in the angle that your boat is running at and send a signal to the servo to correct itself.
Mothaka yo o maaka sentle ka gore o a kata jaanong go raya gore one a thobile ko posting go ya go ja banyana.o lopa thata mista o ele tlhoka ka gore nopa e kgona go iphetola sejeso.....