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RELAYS, SENSORS, SWITCHES, TIMERS & ANNUNCIATORS

ACCESS CONTROL & INTERCOMS
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DOOR ACCESSORIES & MISCELLANEOUS
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DOOR CLOSERS, AUTOMATIC OPERATORS, ACTUATORS, TRANSMITTERS & RECEIVERS
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DOOR SYSTEM KITS
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ELECTRIC LOCKS
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ELECTRIC STRIKES & MAGNETIC DOOR HOLDERS
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EXIT DEVICES & EXIT ALARMS
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HAZARDOUS LOCATION PRODUCT
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HINGES & PIVOTS
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LOCKS, CORES, KEY CABINETS, CYLINDERS & KEYBLANKS
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LOCKSMITH TOOLS
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POWER SUPPLIES & TRANSFORMERS
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RELAYS, SENSORS, SWITCHES, TIMERS & ANNUNCIATORS
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KM Thomas supplies a comprehensive range of relays, sensors, switches, timers, and annunciators that support advanced access control systems. Sourced from leading manufacturers, our selection delivers reliable control components made for consistent performance, efficient operation, and seamless system integration across commercial and institutional environments.

Our product range supports a wide variety of applications, from basic switching functions to complex control systems requiring precision timing, signal activation, and dependable relay performance. Each component is selected for durability, compatibility, and long-term reliability, which helps reduce system downtime while maintaining secure and efficient operation. Every product plays a critical role in maintaining control and responsiveness.

Whether you’re managing power distribution to door hardware, automating system responses, or enhancing signaling and monitoring capabilities, KM Thomas connects you with proven solutions built to meet your specifications.

Door Status Switches & Indicators
Door Status Switches & Indicators
Horns & Strobes
Horns & Strobes
Key Switch Mounting Boxes
Key Switch Mounting Boxes
Key Switch Parts & Accessories
Key Switch Parts & Accessories
Key Switches
Key Switches
Power Transfers
Power Transfers
Pull Stations & Emergency Releases
Pull Stations & Emergency Releases
Push Button Parts & Accessories
Push Button Parts & Accessories
Push Buttons
Push Buttons
Relays
Relays
Request to Exit Sensors
Request to Exit Sensors
Timers
Timers
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