Key Lock Switches offer a unique approach by utilizing a literal key to open and close contacts, stray from traditional buttons, levers, or magnets. This economical and efficient switch requires only a 12mm diameter hole for installation.With a simple clockwise rotation of the bike lock style key, it securely connects contacts for operational functionality. To disconnect, turn it counter-clockwise. This solution is ideal for an On-Off switch needing a key for activation.Key Lock Switches come in a 'momentary' style, meaning the key cannot be removed in the On position, or a non-momentary version where the key can be removed. These components provide basic security for non-critical applications. https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2025-11-11 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2025-12-04 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2025-12-20 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-01-24 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-01-29 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-04-08 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-06-27 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-07-01 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-08-10 https://elecena.pl/product/29497848/adafruit-momentary-on-off-round-key-lock-switch-12mm-diameter 2026-09-20