Detailed Answer
The key switch is the transmitter power/authorization switch: insert the key and turn to ON to power on; removing the key cuts all power. Functions: 1. Prevents unauthorized operation; 2. Prevents accidental power-on; 3. Shift handover management. The Leader LD series comes standard with a key switch; Xingjia supports key + password dual verification. Lost keys can be replaced (unique code); keep a spare key.
| Function | Prevents unauthorized use |
| Leader | Standard |
| Management | Shift handover |
Note:If keys are lost, replace the lock cylinder promptly to prevent old keys from being misused.