7. Nest Smoke Detector
Price: $94.00
Nest Smoke Detector is a beeper that lets you know if there’s any smoke or carbon monoxide detected. It can be connected to your smartphone or tablet, and you can always check its batteries and sensors. A message will be sent to you if the batteries run low. But wait, there’s more! Aside from the alarm sound, this gadget also speaks a human voice to let you know what and where the problem is even if the WiFi is down. Nest Smoke Detector’s light glows green when you turn off the lights during bedtime, which indicates that the gadget is working. And now, let’s see what else we have in our list of best gadgets for home security in 2017.