How to Build a Laser-Based Home Security Alarm System 🔴🔐 | Easy DIY
0:54
YouTubeEnergy Tricks
How to Build a Laser-Based Home Security Alarm System 🔴🔐 | Easy DIY
Learn how to build a laser-based home security alarm system using simple electronic components. This DIY project uses a laser beam and light sensor to detect interruption and instantly trigger an alarm. When someone crosses the laser path, the beam is blocked, the sensor detects the change, and the buzzer turns ON immediately. Perfect for ...
已浏览 1.7万 次1 个月前
短视频
CO2 Fire Suppression Pull Station Activation!
2:05
已浏览 2万 次
CO2 Fire Suppression Pull Station Activation!
S.E.R. Safety
Fire Detection System Using IR Sensor | Easy Electronics Project #techshorts
0:13
已浏览 184 次
Fire Detection System Using IR Sensor | Easy Electronics Project #techshorts
EC short lab
Alarm Clock Sounds
Alarm Clock Sound | 1 HOUR
1:00:02
Alarm Clock Sound | 1 HOUR
YouTubeGlobal Sound Archive
已浏览 60.9万 次2021年9月4日
Alarm Clock Sound Effect | Loud Wake Up Ring Audio Download
0:25
Alarm Clock Sound Effect | Loud Wake Up Ring Audio Download
YouTubeFree Sounds Library
已浏览 2063 次8 个月之前
Classic Alarm Clock - Sound Effect | ProSounds
0:06
Classic Alarm Clock - Sound Effect | ProSounds
YouTubeProSounds
已浏览 51万 次2021年11月6日
热门视频
NDMA Tests Cell Broadcast Alert System | Why Did Your Phone Suddenly Beep Today? | How Does It Work
2:24
NDMA Tests Cell Broadcast Alert System | Why Did Your Phone Suddenly Beep Today? | How Does It Work
YouTubeUnacademy IAS: English
已浏览 9484 次1 个月前
Just Replace 3 Gadgets with THIS One Device! 🤯 Portronics Strings
0:30
Just Replace 3 Gadgets with THIS One Device! 🤯 Portronics Strings
YouTubePortronics
已浏览 7243 次1 个月前
The FIRE ALARM Alarm Clock! | The LOUDEST Alarm Clock Ever! ⏰
0:33
The FIRE ALARM Alarm Clock! | The LOUDEST Alarm Clock Ever! ⏰
YouTubeS.E.R. Safety
已浏览 3.4万 次1 个月前
Alarm Clock Reviews
Top 5 Best Alarm Clocks for [2025]
7:46
Top 5 Best Alarm Clocks for [2025]
YouTubeExcellent Review
已浏览 4731 次2025年6月2日
Top 6 Best Alarm Clocks of 2026 | Smart, Sunrise & Loud Alarm Reviews
6:27
Top 6 Best Alarm Clocks of 2026 | Smart, Sunrise & Loud Alarm Reviews
YouTubeTreasureXpert
已浏览 57 次5 个月之前
✅Top 5 Alarm Clocks of 2025 (Tested & Reviewed) - Sunrise, Wireless Charging & More!
6:33
✅Top 5 Alarm Clocks of 2025 (Tested & Reviewed) - Sunrise, Wireless Charging & More!
YouTubeFlashCart
已浏览 426 次8 个月之前
NDMA Tests Cell Broadcast Alert System | Why Did Your Phone Suddenly Beep Today? | How Does It Work
2:24
NDMA Tests Cell Broadcast Alert System | Why Did Your Phone Suddenly Beep Today? | How Does It Work
已浏览 9484 次1 个月前
YouTubeUnacademy IAS: English
Just Replace 3 Gadgets with THIS One Device! 🤯 Portronics Strings
0:30
Just Replace 3 Gadgets with THIS One Device! 🤯 Portronics Strings
已浏览 7243 次1 个月前
YouTubePortronics
The FIRE ALARM Alarm Clock! | The LOUDEST Alarm Clock Ever! ⏰
0:33
The FIRE ALARM Alarm Clock! | The LOUDEST Alarm Clock Ever! ⏰
已浏览 3.4万 次1 个月前
YouTubeS.E.R. Safety
CO2 Fire Suppression Pull Station Activation!
2:05
CO2 Fire Suppression Pull Station Activation!
已浏览 2万 次1 个月前
YouTubeS.E.R. Safety
Fire Detection System Using IR Sensor | Easy Electronics Project #techshorts
0:13
Fire Detection System Using IR Sensor | Easy Electronics Project #techshorts
已浏览 184 次1 个月前
YouTubeEC short lab
NDMA Tests Cell Broadcast Alert System | Disaster Warning Alert on Phone Today
0:53
NDMA Tests Cell Broadcast Alert System | Disaster Warning Alert on Phone Today
已浏览 3124 次1 个月前
YouTubeUnacademy IAS: English
Laser Security System using BC547 Transistor and LDR #security #diy
0:15
Laser Security System using BC547 Transistor and LDR #security #diy
已浏览 2.2万 次1 个月前
YouTubeTeknoTrek
1:16
Government Emergency Alert 🔔 Why Your Phone Suddenly Rang? | Cell Broadcast Explained
已浏览 4.7万 次1 个月前
YouTubeLet's Crack UPSC CSE Hindi
0:07
How To Make Rain Detector Project|| Easy Sciece Project #science #diy #shorts
已浏览 3.8万 次1 个月前
YouTubeMr. Deeps
0:39
How Many Alarms Does It Take To Break An IPhone? #shortsfeed
已浏览 3.2万 次1 个月前
YouTubeZ-ZekLegacy
0:12
Alarm Clock in 1626 vs 2026 #shorts #alarm #history
已浏览 3097.6万 次1 个月前
YouTubeOmnik
0:04
Fire detector #shorts #scienceproject #experiment #electronics
已浏览 166万 次1 个月前
YouTubeTech Ideas
0:51
iOS Alarm Sound Evolution #apple #iphone #ios #alarm #sound #evolution
已浏览 35.1万 次2 个月之前
YouTubeTabTUNE
0:35
3 Cool Alarm Clocks That Will Blow Your Mind 💥 #shorts #alarm #viral
已浏览 2.6万 次1 个月前
YouTube2X GADGETS PRO
0:16
RED ALERT 🚨 न्यूक्लियर सायरन (Nuclear Siren) | इमरजेंसी चेतावनी अलार्म Sound
已浏览 4.4万 次1 个月前
YouTubeharathomsc
0:13
Water Glass Level Indicator with LED & Buzzer System ❤️💡❤️ #waterlevelindicator #shorts #diy
已浏览 12.8万 次2 个月之前
YouTubeScience Ideas 101
0:56
How to Make a Security System 🔐 | Simple Alarm Circuit (Easy DIY!)
已浏览 3.7万 次1 个月前
YouTubeEnergy Tricks
0:22
sleep peacefully. Wake violently or else you'll end up snoozing your alarm till last minute #alarm
已浏览 1393 次2 周前
YouTubeSolve to Wake Alarm
1:10
Smoke Detector Aag Ko Pehle Kaise Pakad Leta Hai?! 😱🔥 #Shorts
已浏览 7149 次1 个月前
YouTubeBe the Perfect
展开
静态缩略图占位符

短视频

0:54
How to Build a Laser-Based Home Security Alarm System 🔴🔐 | Easy DIY
已浏览 1.7万 次1 个月前
YouTubeEnergy Tricks
2:24
NDMA Tests Cell Broadcast Alert System | Why Did Your Phone Suddenly Beep Today?
已浏览 9484 次1 个月前
YouTubeUnacademy IAS: English
0:30
Just Replace 3 Gadgets with THIS One Device! 🤯 Portronics Strings
已浏览 7243 次1 个月前
YouTubePortronics
0:33
The FIRE ALARM Alarm Clock! | The LOUDEST Alarm Clock Ever! ⏰
已浏览 3.4万 次1 个月前
YouTubeS.E.R. Safety
2:05
CO2 Fire Suppression Pull Station Activation!
已浏览 2万 次1 个月前
YouTubeS.E.R. Safety
0:13
Fire Detection System Using IR Sensor | Easy Electronics Project #techshorts
已浏览 184 次1 个月前
YouTubeEC short lab
0:53
NDMA Tests Cell Broadcast Alert System | Disaster Warning Alert on Phone Today
已浏览 3124 次1 个月前
YouTubeUnacademy IAS: English
0:15
Laser Security System using BC547 Transistor and LDR #security #diy
已浏览 2.2万 次1 个月前
YouTubeTeknoTrek
1:16
Government Emergency Alert 🔔 Why Your Phone Suddenly Rang? | Cell Broadcast
已浏览 4.7万 次1 个月前
YouTubeLet's Crack UPSC CSE Hindi
0:07
How To Make Rain Detector Project|| Easy Sciece Project #science #diy #shorts
已浏览 3.8万 次1 个月前
YouTubeMr. Deeps
0:39
How Many Alarms Does It Take To Break An IPhone? #shortsfeed
已浏览 3.2万 次1 个月前
YouTubeZ-ZekLegacy
0:12
Alarm Clock in 1626 vs 2026 #shorts #alarm #history
已浏览 3097.6万 次1 个月前
YouTubeOmnik
0:04
Fire detector #shorts #scienceproject #experiment #electronics
已浏览 166万 次1 个月前
YouTubeTech Ideas
0:51
iOS Alarm Sound Evolution #apple #iphone #ios #alarm #sound #evolution
已浏览 35.1万 次2 个月之前
YouTubeTabTUNE
0:35
3 Cool Alarm Clocks That Will Blow Your Mind 💥 #shorts #alarm #viral
已浏览 2.6万 次1 个月前
YouTube2X GADGETS PRO
0:16
RED ALERT 🚨 न्यूक्लियर सायरन (Nuclear Siren) | इमरजेंसी चेतावनी
已浏览 4.4万 次1 个月前
YouTubeharathomsc
0:13
Water Glass Level Indicator with LED & Buzzer System ❤️💡❤️ #waterlevelindicator
已浏览 12.8万 次2 个月之前
YouTubeScience Ideas 101
0:56
How to Make a Security System 🔐 | Simple Alarm Circuit (Easy DIY!)
已浏览 3.7万 次1 个月前
YouTubeEnergy Tricks
0:22
sleep peacefully. Wake violently or else you'll end up snoozing your alarm till last
已浏览 1393 次2 周前
YouTubeSolve to Wake Alarm
1:10
Smoke Detector Aag Ko Pehle Kaise Pakad Leta Hai?! 😱🔥 #Shorts
已浏览 7149 次1 个月前
YouTubeBe the Perfect
静态缩略图占位符