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John WagnerAug 1, 2025
What to do if SICK Security Sensors flash 2, 3, or 4 times?
- JjonesmeganAug 1, 2025
If your SICK Security Sensors are flashing 2, 3, or 4 times, this indicates an internal error. You should check the wiring, perform a power-up, and if the problem persists, replace the device.