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Meanings of motion detector in English

A device that detects moving objects, such as moving animals or people.

Synonyms
Examples for "motion sensor"
Examples for "motion sensor"
1
He made sure the motion sensor was still active, then slung his weapon.
The Flood
2
His motion sensor painted a sudden blob of movement-speedingcloser by the second.
The Flood
3
What was wrong with the motion sensor on the overhead light?
My deadly valentine
4
Documenting and programming the motion sensor fitted exactly into this category.
Wired
5
His motion sensor showed more contacts inbound, but they were keeping their distance.
The Flood
Usage of motion detector in English
1
The motion detector emitted a beep as I stepped through the front door.
Ready Player One
2
They came to the first motion detector, its red eye blank and dark.
The bourne objective
3
You need a way of sending that motion detector data to the right place.
Wired
4
A panel beside it contained a motion detector to open it automatically whenever anyone approached.
The Departure
5
Here was the light the creepers would need -butwhat would trigger the motion detector?
Logos Run
6
He figured he must have set off some kind of motion detector or alarm device.
Watch them die
7
He picked the motion detector off the counter and turned it over in his hand.
Hot six
8
The motion detector can trigger shots, or you can program it to do time-lapse photos.
Wired
9
Accelerometer A tiny motion detector that can measure how fast you're moving and in what direction.
Wired
10
If the motion detector is triggered, it will immediately send a notification to your cell phone.
The South African
11
Rushing to the cellar door, we found the motion detector flashing wildly in the dim light.
The ghost chronicles
12
Moving down the sidewalk, we set off one motion detector after another, lighting our way in stages.
Back on murder
13
Someone had just tripped the motion detector she had placed in the hall on the ground floor.
The girl who kicked the hornet's nest
14
However, this time I am going to get the acceleration with a motion detector instead of a video.
Wired
15
The guard turned off the alarm only to later spot one of the thieves through the motion detector.
Reuters
16
Do you have a motion detector?
Monday Mourning