The start of the new year is the perfect time to double check your home's smoke alarms to be sure they're properly installed ...

Fig 1. Fires follow a progression from start to full involvement, with both temperature and smoke content rising rapidly once full combustion is underway. Fig 2. Traditional optical smoke detectors ...

Window sensors are a critical part of any home security system. When cameras fail, a window sensor becomes your last line of defense. Install them on all your windows, and you will know when an ...

Your smoke and carbon monoxide detectors quietly decide how much time you have to escape a fire, yet the tiny date code that ...

Smoke alarms aren't just noisy gadgets that chirp when your toast burns. They're essential, life-saving devices required by law in most homes around the country ...

Don't wake up one day wondering where your car went. Protect your investment with a good car alarm system. ith the advent of built-in vehicle immobilizers and keyless entry remotes, the aftermarket ...

Juan has been a home inspector for 10 years and runs a successful home inspection company in Richmond, VA. He loves inspecting homes, but his real passion is educating home owners and newer inspectors ...

Cooking is the leading trigger for home fire alarms, yet the device you rely on to protect your family can become so annoying ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

The idea behind this compact and economical Vibration Sensor Alarm is very simple. It uses a cheap and cheerful vibration sensor to drive a piezo-sounder. As can be seen in the circuit diagram, it is ...