When the laser beam is interrupted, the output voltage drops, the Arduino sees that voltage drop and then turns on the alarm buzzer. The value that triggers the alarm is set mid-way between the ...

Spectroscopic techniques such as FTIR, Raman, and NQR enhance airport security by detecting hazardous materials, explosives, ...

Whether you have full use of your hands or not, a foot-operated keyboard is a great addition to any setup. Of course, it has to be a lot more robust than your average finger-operated keyboard, so ...

100% Brand New, High Quality Car Power Charger/Adapter Fits Cobra XRS 9330 XRS 9340 XRS 9345 XRS 878 Radar Laser Detector XRS9330 XRS9340 XRS9345 XRS878 Fits Cobra XRS-R7 XRS-R8 XRS-R9G XRS-777 ...

If you need high-quality printing in a snap, a laser printer can produce clean, sharp prints in as little as a few seconds. But, after three weeks of testing each device, not all laser printers ...

The best color laser printers are a great investment that can save you time and money compared to cartridge-based inkjet printers. Laser printers use toner, which lasts a long time, delivering a ...

Sunrise alarm clocks mimic the gradually brightening light of the sun to ease you out of sleep. Think of it as a biological hack. “We evolved to align our sleep-wake cycles with the sun ...

Prepare for dark mornings and seasonal depression with the Lumie Sunrise Alarm Clock - it eases you into waking and gives you "more motivation and energy" for the day ahead. Simply set your Lumie ...

The best laser printers on the market are the ones that consistently deliver pages of high quality at lower printing costs than the competition, without causing you headaches. I know because my ...

Forget about the side effects of shaving and the pain of at-home waxing — laser hair removal makes it easy to achieve smooth, lasting results from the comfort and privacy of your own home.

Unlike many laser hair removal devices, SmoothSkin states that the laser will work on all hair colors, including blond, apart from white, gray, or red hair. This device features three comfort ...