When Audio Warning Security Camera’s built motion sensor is tripped, it emits a loud 50dB warning message that says: "Warning. You have triggered the alarm system. Your movements are being ...

Then I'd look like a complete idiot as I scrambled to put in the right combination. You can pick one up for $24.95. Lock Alarm – motion sensor alarm protects your stuff loudly [via redferret] ...

Ring Video Doorbell Pro 2 brings higher resolution and 3D motion to the party The Ring Alarm Outdoor Siren provides audible and visual alerts, flashing red LEDs when triggered.

Here's a closer look at why visual and audible alerts are becoming indispensable for modern campus emergency response systems ...

Shut the bleep bleep bleep up! Nintendo has launched a pricey video game-paired alarm clock that uses motion sensors to make sure you get out of bed — or else. Alarmo, which retails for $99.99 ...

All you need is an Arduino, a motion sensor, a few wires and headers, and the code provided at the site below. Hit the link to see step-by-step instructions on how to put it together.