It can be a big mean world. You want to be careful out there. These tools will help you stay safe and secure.

SMART ALARM

When the smoke alarm goes off, Nest Protect smoke + CO alarm sends an alert to your phone telling you exactly where the problem is. You can silence the alarm from your phone — no broom handles needed.  $119.

855-469-6378;
nest.com

CANDID CAMERA

Your word against another driver’s? A video record could clear things up. The Magellan RoadMate 6230-LM is a GPS and dash-mounted camera. In case of a collision, a lock feature preserves the video. $161.

800-720-5537; magellan.factoryoutletstore.com

WAKEY-WAKEY

Coffee and blaring music aren’t keeping you awake on the road? The Nap Zapper Anti-Sleep Alarm, worn over your ear, detects the second you start to nod and sends wake-up beeps. Then, you can pull over safely for a nap. $6.

888-280-4331; amazon.com

WHO’S THERE?

A peephole is fine, but you have to go to the door to use it. With the Ring Video Doorbell, just glance at your smartphone. You can see who’s there — when you’re not even home — and carry on a conversation, too. $199.

800-656-1918;

ring.com

ON WATCH

You can’t be everywhere, but the Ezviz Mini Trooper can. This tiny security camera connects through your router. Sync up to six cameras to get alerts and keep track of what’s happening on your smartphone. $110.

855-693-9849; ezvizlife.com.

FLOOD PROTECTION

Nothing’s worse than finding water pouring from your water heater, dishwasher, tub, sink or sump pump. With a D-Link Wi-Fi Water Sensor, you’ll get a smartphone alert when there’s a leak. $60.

800-326-1688;
dlink.com.