What is a rectangular-shaped probe that does not flash when capturing?

[SanAbel]

Rectangular-shaped cameras are electronic police devices. Electronic police can capture over 20 types of traffic violations, including not wearing seat belts, using or checking mobile phones, running red lights, speeding, illegal parking, violating traffic restrictions, occupying dedicated lanes, out-of-town vehicles without Beijing entry permits, and illegal honking. Road surveillance cameras: Primarily used to capture violations such as driving against the flow of traffic, crossing solid lines when changing lanes, and illegal parking. These are usually installed on one side of the road or at intersections between main roads and auxiliary roads. These cameras are white rectangular boxes, typically mounted on inverted "L"-shaped white traffic poles by the roadside. Intersection violation monitoring cameras: Mainly used to capture violations such as running red lights, not following directional markings, illegal lane changes, crossing solid lines, driving against the flow of traffic, and motor vehicles occupying non-motorized lanes.

[Sophia]

I noticed that rectangular sensors are relatively rare in parking radars, with circular versions being much more common. If it doesn't 'flash', I assume you mean it doesn't beep or respond with alerts? This could be due to: damage to the sensor itself, such as aged internal components or impact-induced faults; loose or corroded wiring connections (especially prone to rust in humid environments); or potential issues with the radar control module, unstable power supply, or blown fuses. I remember my old car had similar problems - particularly bad during rainy days when the radar went completely silent, nearly causing me to back into a flowerbed. The repair shop later traced it to oxidized connectors, which worked fine after cleaning. My suggestion: first try cleaning the sensor surface and checking connection tightness. If that doesn't work, professional diagnosis is needed. A malfunctioning parking radar is extremely hazardous during reversing - never compromise on driving safety. Address it promptly to avoid regrets.

[LaHazel]

As a frequent driver, it's quite annoying when the reverse parking sensor doesn't respond. The rectangular sensors already have weaker signals. My car has used similar sensors before, and possible reasons include poor sensor installation or obstruction by foreign objects; short circuits causing unstable current; decreased sensor sensitivity or hardware aging. The most obvious is when the sensor freezes in winter and stops responding. Safety first – in this situation, the reverse radar won't sound an alarm, making it easy to scrape or cause injury, so don't force it. Try using a hot towel to thaw it, check if the connection points are corroded, and then test the car. If that doesn't work, you'll need to replace the sensor or upgrade the system. Regular maintenance can prevent such issues, after all, the car's protective equipment must always be reliable.

[River]

I've encountered issues with the rectangular parking sensor not flashing or capturing, simply put, it's not working and giving an alarm. Common causes: the sensor is dirty, covered by dust or mud, leading to signal interruption; loose or damaged connecting wires; a blown fuse; or incorrect system settings. For self-checking, first clean the sensor surface and ensure it's dry; then unplug and replug the connector; check the manual for the fuse location. If it can be fixed, that's convenient; if not, seek a repair shop. Don't take it lightly as it's crucial for reversing safety.