The XA_52485 is an OEM red rotary key designed specifically for use in Saga K3 and K4 Series radio remote transmitters. This precision-engineered switch allows operators to select operational modes or activate safety features via a simple rotational action. Key Features: Color-coded red key for enhanced visibility and quick identification. Rotary selection mechanism integrates seamlessly into K3/K4 Series transmitter circuitry for mode/function selection. Field-replaceable switch—ideal for maintenance or refurbishment of handheld remotes. Lightweight and compact design—sits flush within the transmitter housing. This rotary key is essential for restoring selectable functionality or replacing worn/damaged keys in Saga K3/K4 transmitter units.