The DS211 is a red round pushbutton switch with a builtin lock and a small keyhole. It features a selflocking mechanism that latches in the ON position until unlocked with a key. The compact 10 mm size makes it suitable for tight control panels and compact electronics. Key benefits Tamperresistant operation: the keyed lock prevents unauthorized activation or deactivation. Secure, selflocking action: once pressed, the switch remains latched until the key is used to release it. Clear visibility: the red round button provides immediate visual indication in panel installations. Simple to operate: push to engage, unlock with the key to disengage. Key attributes Model: DS211 Color: Red Type: Round button switch with lock Locking: Selflocking Keyhole: Small Size: 10 mm Quantity: 1 piece Function: Pushbutton with keyed locking mechanism Compatibility: Suitable for panelstyle control applications that require a keyed, selflocking pushbutton Performance: Provides secure, lockable control in compact form factor Applications Security or accesscontrolled power switches on equipment panels, where unauthorized operation must be prevented Service or maintenance mode switches on machines, enabling operation only with the key DIY electronics or prototype builds that require a locked pushbutton for secure start/stop control Notes The description reflects the DS211 model with a red, round, selflocking pushbutton and a small keyhole. It is designed for controlled, keyed operation in compact form factors.