Adafruit Momentary On/Off Round Key Lock Switch - 12mm Diameter

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.