Ding, dong! We're on the lookout for the best savings at Amazon's annual summer mega-sale, so you can lock down the very best prices for making your home safer and more secure.

The Eufy Video Smart Lock E330 combines a doorbell, security camera, and keyless lock in one sleek device, now discounted to $189.99 for Prime Day (from $299.99). Recognized as the best smart lock of ...