I have had 5 camera NVR systems over the past 15 years and Reolink offers the best picture quality and feature set I have ever had. Motion detection is simply a frame-by-frame pixel comparison, so shadows and changes in lighting trigger a motion event. I've seen other systems available with IR triggers and motion triggers, but other key features don't match Reolink. The app works great on my phone and email notifications send a very clear picture of the triggering events. I'm very happy with the product and don't think you can improve it without spending a lot more money.
Blink XT/XT2 Camera Wall Mount Bracket - 360Β° Adjustable for Indoor/Outdoor Use - 3 Pack
11 Review
TP-LINK Tapo C310 security camera white
30 Review
WiFi Hidden Spy Camera with Live Feed & Video Recording - Remote Access Mini Nanny Cam | Spy Camera Wireless Hidden for Home Surveillance
11 Review
WOSODA Trail Camera: Waterproof 16MP 1080P Hunting Game Camera with Night Vision for Home Security & Wildlife Monitoring
11 Review