搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
PC Magazine
6 年
PIR sensor
(Passive InfraRed sensor) A device used to detect motion by receiving ... and sends a signal. PIR sensors are used for applications such as automatically turning on lights when someone enters ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Murder suspect charged
Cracker Barrel apologizes
Gets 50 years in prison
Ambassador to Mexico?
Trump mocks Trudeau
Tyson faces $1.5M suit
CA warnings on social sites
Time's Athlete of the Year
Haiti gangs kill 180+
Prices hit all-time high
Lands talk show on OANN
Emergency brain surgery
World Series champion dies
Labor costs revised down
DOJ: Violated civil rights
FTC issuing refunds
US indicts ex-Syrian officials
AU: Virus samples lost
ISR warplanes pound Syria
1/3 of older adults lonely?
US, UK target gold scheme
Launches AI video generator
Utah environmental dispute
Unveils quantum chip
Boeing layoffs continue
New gene therapy trials
WI electoral votes suit
Testifies in corruption trial
Famed poet Giovanni dies
To pay $15M penalty
Merger blocked by judge
US conducts intercept test
反馈