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Precautions

1. The following may be false positives.

Smooth slopes 2. smooth spherical objects 3. sponge objects four. Heavy rain

2. Common faults

Problem 1. The radar does not work

Cause: 1. The power cord is connected incorrectly

Solution: 1. Red line then +12 V 2. Check the joints, one by one correspondence

Problem 2. Power supply pair, but still does not work

Reason: 1. The probe is wrong 2. The probe is broken

Solution: 1. Re-insert the probe

Question 3: Repeat a number

Reason: 1. Probe probe or other fixed objects

Solution: 1. Adjust the probe mounting position and angle

Question 4: false positives

Reason: 1. Connector fault 2. Probe line rupture

Solution: 1. Re-check the probe and insert it