Ignition Interlock Switch

Switch that prevents starting the sweeper if key safety guards are open. Protects operators during servicing.

Infrared Surface Thermometer

Handheld thermometer for checking road surface temperature before spraying or marking. Ensures conditions meet specification for proper adhesion.

Ignition Master Switch

Heavy-duty switch isolating all electrical circuits. Used at shift end to prevent battery drain and comply with depot safety policies.

Idle-Speed Controller

Electronic module automatically adjusting auxiliary-engine idle speed. Maintains optimal hydraulic pressure when sweep load changes.

Ignition Delay Relay

Relay delaying accessory power until engine start is complete. Prevents voltage drop to controllers during cranking.