The Buzzer, also known as UVB-76 or UZB-76 ... What’s even stranger is that occasional background voices are audible on the signal. That implies that buzzing noise isn’t generated directly ...

It might not be ideal for heavy sleepers who need noise to wake up; you'll still need to set a separate, audible alarm. A single light costs about $100. Read our full Casper Glow Light review.

Warning indicator lights indicate pass/fail conditions and often work in conjunction with audible buzzers or alarms. In automated test environments (ATEs), megohmmeters are often interfaced with ...

5 programmable one-touch function keys with 25 options. LED status indicators. Piezo buzzer provides audible feedback for correct key entries, pre-alert and system trouble status. 4 selectable door ...

We really liked the YoLink alarms, but we wished they also offered an audible alert function, such as a chime or a siren that sounded when a door was open. Still, that’s a minor gripe for what ...

Or, you may want to spend the same amount to get a single voice alert detector for both smoke and CO. Focus on models that ...

Quartz watches with a digital display take things much further, with multiple timers, audible alarms, calendars, an hourly chime, several daily alarms, multiple time zones and more. Digital ...

We’ve got some friends who have two sump pumps. One is a backup and sounds an alarm when it is switched on. But this only works as long as they’re home to hear it. [Felix Rusu] came up with a ...

What is the best overall home security system? For total home coverage with an eye on important access points inside your house, nothing works as well as a complete security system, which includes ...

and audible components comprising audible transducers, Piezo buzzers, speakers, and microphones. The company also provides resonators, alarms, chimes, filters, and discriminators, as well as fuses ...

The Vivint Smart Home security system is a full-blown home security system that gives you 24/7 monitoring and full control over door locks, cameras, thermostats, and lights. You can even monitor ...