What technique are these parking sensors using?

radar
echo sounding
infrared ranging
electromagnetic induction
Typical parking sensors are ul­tra­son­ic, often a clicking sound may be heard close by. There are also less popular elec­tro­mag­net­ic sensors, that do not require any holes in the bumper, but detect metal objects only.

Answers distribution

radar
echo sounding
infrared ranging
electromagnetic induction
answers
flagDenmark
6%
75%
12%
0%
16
flagLithuania
12%
56%
18%
12%
16
flagGermany
10%
55%
17%
15%
180
flagthe Netherlands
5%
55%
19%
19%
36
flagRepublic of Ireland
13%
55%
24%
6%
29
flagItaly
5%
55%
15%
25%
20
flagCanada
12%
54%
29%
3%
31
flagNorway
9%
53%
31%
3%
32
flagPoland
13%
52%
22%
10%
11670
flagFrance
25%
50%
12%
12%
32
flagAustralia
5%
50%
22%
22%
18
flagBelgium
25%
50%
0%
18%
16
flagIndia
12%
46%
25%
11%
231
flagthe United States
19%
45%
23%
9%
414
flagSweden
31%
45%
9%
13%
22
flagthe United Kingdom
16%
44%
26%
12%
281
flagUnknown
15%
44%
22%
17%
45
flagPakistan
11%
41%
5%
41%
17
flagthe Philippines
15%
40%
20%
25%
20
flagthe United Arab Emirates
7%
21%
42%
21%
14

Gender

men50%
women44%
radar
13%
8%
echo sounding
50%
44%
infrared ranging
26%
29%
electromagnetic induction
9%
17%

Language versions

question
answers
results
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What technique are these parking sensors using?
1004
43%

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