Amazon has the Arlo Smart HD Wired Video Doorbell w/ 2-Way Audio (White - AVD1001) for $30 with free shipping on $35+ or with Prime. List price: $130. Features 2-way audio, HD resolution, night vision, waterproof, motion detection, weather resistant.

Has good Amazon Reviews.

Amazon has the TP-Link Kasa Smart Light Bulb 4-Pack (KL125P4) for $21 with free shipping on $35+ or with Prime. List price: $40. Features dimmable, compatible w/ Alexa & Google Home, no hub required. Set your bulb to automatically adjust its color temperature to match natural light patterns from dawn to dusk.

Has excellent Amazon Reviews.

Amazon has the Coway Airmega True HEPA Air Purifier (AP-1512HH) for $142 with free shipping. List price:$230. Features air quality indicator with particle sensor, HEPA efficiency rating of 99.99%, 4-stage filtration system. Constantly monitoring the air quality, the fan automatically adjusts to most effectively purify your space as needed providing a new level of clean in real time.

Amazon has the Ring Stick Up Cam Battery w/ Ring Small Solar Panel (White or Black) for $85 with free shipping. List price: $140. Motion-activated notifications, two-way talk, works with Alexa. Has excellent Amazon Reviews.

Amazon has the 2nd-Gen. Ring 14-Piece Alarm Home Security System Kit for $200 with free hipping. Kit includes one base station, two keypads, 8 contact sensors, two motion setectors, and one range extender. Includes an intuitive Keypad that can arm and disarm your Alarm and Contact Sensors that detect when doors or windows open. This is the latest model of this product.

Has excellent Amazon Reviews.