Undetectable Radar Detectors: Meaning, Limits and Canadian Rules

No detector can responsibly be described as guaranteed undetectable in every condition. Some manufacturers advertise reduced RDD visibility; check the exact model claim and remember that it does not change provincial restrictions.

They are permitted only in British Columbia, Alberta and Saskatchewan, except in commercial vehicles in Saskatchewan. They are prohibited elsewhere in Canada.

RDD means radar detector detector: equipment used to identify emissions from some radar detectors. Detection behaviour depends on the equipment and circumstances.

No. “Stealth” is a product claim about reduced detectability, not proof of universal invisibility or permission to use the device.