2001M - A spring loaded 2 position momentary key switch that has a key removable in one position. One typical application for this key switch is to register a call or hall station by the key holder only. It serves as a security switch. A direct replacement for the 2126M and 2136M units.
2001 - An On/Off 2 position key switch that has a key removable in both positions. One typical application for this key switch is to register a call or hall station. A direct replacement for the older 2126, 2136 units.
2126M - A spring loaded 2 position key switch that has a key removable in one position. Obsolete - Keys Only Available
2136M - A spring loaded 2 position key that has a key removable in one position. Obsolete - Only Keys Are Available
2126 - This is a 2 position key switch with the key removable in BOTH positions. Obsolete - Only Keys Are Available
2136 - This is a 2 position key switch with the key removable in BOTH positions. Obsolete - Only Keys Are Available