eBay with Newegg has the 3-Pack Netgear Arlo Pro 2 Wireless 1080p HD Indoor/Outdoor Home Security Camera System, Works with Amazon Alexa, 2017 model (VMS4330P-100NAS) for $400 - $100 off with code GETDEAL100 [Exp 4/30] = $300 with free shipping
Best Home Security Deals, Surveillance Cameras / DVR on Sale
Amazon with PriSecu has the GooSpy Wireless 1080p HD Wi-Fi Hidden Spy Camera Bluetooth Music Speaker Clock for $76 - 7% off coupon (check green "Save coupon" box) - $30 off with code FVCV3ESO [Exp 5/31] = $40 with free shipping.
Amazon with ALON Security has the Facamword 1080p Solar Pan/Tilt/Zoom (PTZ) Wi-Fi IP Home Security Camera with 2-Way Talk, Night Vision, Free Cloud Storage for $140 - 10% off coupon (check "Save an extra" box) - $42 off with coupon code C9ARAF32 [Exp 12/31] = $84 with free shipping.
eBay with dealparade has the manufacturer refurbished Arlo by Netgear Add-On Wire-Free HD Cam (VMC3030-100NAR) for $52 with free shipping. Requires Arlo base station (sold separately).
Amazon has the 4' Master Lock Self Coiling Combination Cable Lock (8143D, Black) for $3.18 with free shipping on $25+ or with Prime. Walmart has it for the same price (no pickup).
Ends 4/20 at 3AM PT. Lowe's is taking up to 50% off select Swann security cameras. Free store pickup and free shipping are available.
The pictured Swann 1080p Wi-Fi Hardwired Outdoor Floodlight Security IP Camera (Black, SWIFI-FLOCAM2B-US) is on sale for $105 (41% off).
Newegg has the LaView 8MP 3840x2160 IP67 Camera 8 Channel H.265 DVR 4K Output 1TB HDD Security System with 4 x 8MP Full HD / 4K (3840x2160) In/Outdoor Cameras (LV-KTG978K4U8-T1) for $200 - 10% off with code CUSTMRSL727 [Exp 4/19] = $180 with free shipping.
It's $150 with Wi-Fi Bridge.
The pictured NexiGo 1080p 60FPS Webcam with Microphone (N680P) is on sale for $54 after 20% coupon