The motion sensor turns on the lights when someone enters the room.

当有人进入房间时，运动传感器会打开灯。

Old Technology: Based on PIR motion sensor.

传统技术: 基于PIR运动传感器.

You do not need to calibrate the motion sensor.

你无需校准运动传感器。

He then set up a photographic trap with a motion sensor and an infrared barrier to capture his idea.

然后他才设置了一个带有运动传感器和红外屏障的拍摄陷阱来实现他的想法。

It also raises the bar for motion sensor devices.

此外，它还将运动传感设备提高到一个新的高度。

With built-in motion sensor or wirelessly interconnect able, for wall or floor mounting.

带有内置传感器和无线电指挥能力，为了满足用在墙上和地板上使用。

A motion sensor lets the camera know when the subject is within range and triggers the camera to take three photos.

相机上的传感器识别目标进入特定区域后，会触发相机开始三连拍。