Dust-proof cover
Dust-proof coverr is to protect the handheld remote in the harsh environment.
F21 series dustproof cover :
F21-2S/2D Radio remote control
F21-4S/D Hoist remote control
F21- E1 Winch Remote Control
F24- series:
F24-8S/D, F24-10S/10D, F24-12S/D,F24-6D