X-Sense 10-Year Battery Combination Smoke & Carbon Monoxide Alarm Detector 3-Pack

Best Buy has eufy security gear on sale, covering smart locks, video doorbells, and outdoor cameras. The eufy Smart Lock C220 drops to $100, and the eufyCam 3 three-camera 4K solar kit with HomeBase 3 is $395, down from $600.  Buy Now at Best Buy

Update: The price has dropped to $27.99 since this was originally published.

This bundle, which includes a Blink Outdoor 4 Camera and a Blink Battery Doorbell 2K+, is down 76% from its $130 price at Amazon. The Battery Doorbell 2K+ delivers 2K resolution with a head-to-toe field of view, while the Outdoor 4 covers the perimeter at 1080p; both run on AA lithium batteries rated for up to two years per charge and require no wiring. Person and vehicle detection alerts require a paid Blink subscription, sold separately. Buy Now at Amazon

This Blink Outdoor 4 camera and Wired Doorbell 2K+ bundle is $102 off at Amazon, a drop from the $130 regular price. It's the best deal we've seen for this bundle. The bundle includes the Sync Module Core and batteries for the camera, and the doorbell connects to existing doorbell wiring to ring inside the home. Shipping is free for Prime members. Buy Now at Amazon

This X-Sense SC07 smoke and carbon monoxide detector is $6 off at Amazon. The sealed battery is rated for 10 years, so there are no battery swaps. It is a standalone unit and does not interconnect wirelessly with other alarms. Shipping is free. Buy Now at Amazon

Here you'll find the best limited-time offers that Amazon has available today. Shipping is free for Prime members. The sale refreshes at 3am ET each day. Shop Now at Amazon

Amazon's Black Friday sale is due to start on November 19, but in the meantime, you can find a large selection of early Black Friday deals spread across electronics, home, garden, apparel, and more. Discounts reach up to 65% off devices, up to 50% off outlet items, and up to 40% off toys. Sections for holiday decor under $50, gifts under $100, and essentials under $25 are also featured. Shipping is free for Prime members. Sale ends November 18. Shop Now at Amazon

Here you'll find the best limited-time offers that Amazon has available today. Shipping is free for Prime members. The sale refreshes at 3am ET each day. Shop Now at Amazon

At Amazon, get this LazBlinds No Drill Cordless Blackout Roller Shade for $46. It's the best price Amazon has charged for this roller shade. The blackout fabric is rated to block 100% of light, and the shade can be installed with foam glue or screws, which suits renters. Shipping is free. Buy Now at Amazon