A Spectra Physics Model A supermarket scanner—one of the first ten ever produced. A laser within the unit projects a beam onto a mirror that redirects it through the glass plate on the top. Cade ...

For more than 20 years, air travelers have had to make sure they bring their liquid toiletries in 3 oz. bottles only, then chug their drinks before passing through airport security — a reaction to ...

For as long as police officers and other first responders have been communicating with each other over the radio, there have been enthusiasts and other casual listeners eavesdropping on them using ...

The Quick Response code, more popularly referred to as a QR code, has really taken off in recent years, and it's easy to see why. Though COVID-19 helped mainstream it, these codes make sharing ...

Compare the best receipt scanner apps for 2026, including pricing, features, pros and cons, and top use cases for small businesses. Looking for an app to help you track expenses, scan invoices, and ...

Have a busy home office, or a couple of creative kids? The humble desktop printer is your friend. See our top printer picks under $200, backed by PC Labs' dozens of hands-on reviews of the latest ...

The sensor payload (thermopile + VL53L8CX ToF) is carried by a rigid pan-tilt assembly driven by two NEMA 17 stepper motors ...