Best SEDA-KS101 Emergency Door Alarm Wall Mounted Keyswitch
Lockdown Key Switch
DA250LS: Integrated key switch controlled shunt
Fire Alarm Isolate Switch - Haes Technologies
2 Chicago Key Switch Burglar Alarm Electrical Lock Removable Off position only | eBay
ALARM SYSTEM KEY SWITCH (ROUND KEY) MAINTAINED, 2-KEYS, SPST 4AMP@125, ON & OFF | eBay
Siemens TSM-1 Module Key Switch - Rybb Fire Alarm
C-TEC Fire Alarm Control Panel Mains Keyswitch - BF319 | Securetronics
Alarm Controls MCK-6-4 MCK Series Mortise Cylinder Key Switch Station, DPDT Alternate, Single Gang, Green/Red LED
Amazon.com: SECO-LARM SS-095-1H1 High Security Tubular Key Lock Switch, Used for Momentary Alarm Arm/Disarm, Momentary ON/shunt Off 2 Terminals, SPST; Maintained Off, Springs Back from ON, Key Removable from Off : Industrial
Ziton ZP785KS-N Addressable Key Switch Call Point
Fire Alarm Mains Isolator With Keyswitch (Red) T2-FAI
Fire Alarm Mains Isolator Key Switch, BS5839 Compliant Red Fire