You don't need a professional installation or a monthly subscription to secure your home properly. With the right devices and a bit of setup time, you can build a comprehensive smart home security system for under $200. Here's exactly how to do it.
Step 1: Cover your entry points ($19.99)
Every security system starts at the doors and windows. A WiFi door and window sensor sends an instant push notification to your phone the moment any entry point is opened or disturbed — even when you're asleep or away. At $19.99, it's the cheapest layer of protection you can add. Setup takes under 5 minutes: stick it to the door frame, connect to your WiFi in the app, and you're covered.
Step 2: Add a visible deterrent — outdoor camera ($69.99)
The most effective security measure is one that criminals can see. Our HD Full-Colour Night Vision Floodlight Camera combines a powerful motion-activated floodlight with a 1080p camera that records in full colour even at night. Unlike standard cameras that switch to grainy black-and-white after dark, this delivers clear footage around the clock. Works with Alexa, compatible with EU and US power.
Step 3: Watch inside without a subscription ($13.99–$84.99)
For indoor monitoring — checking on children, pets, or the front door — our indoor security camera range starts at $13.99 per unit. The 3-camera pack at $84.99 gives whole-home coverage. No monthly fees, no cloud subscription. Footage streams directly to your phone.
Step 4: Add a smart light deterrent ($12.99)
An empty-looking house at night is an invitation. Smart motion sensor LED lights that activate automatically when movement is detected create the impression of occupancy and startle anyone approaching in the dark.
Step 5 (Optional): Audible alarm ($11.99)
A flashing sound and light buzzer creates an audible response to any triggered sensor. Loud enough to alert neighbours and deter intruders, cheap enough to add to every entry point.
Total system cost
Basic setup (door sensor + outdoor camera + motion light): under $105
Full setup (above + 3 indoor cameras + alarm): under $200
Compare that to professional monitored systems charging $30–60/month — your smart home setup pays for itself within 3–6 months with zero ongoing costs.
See all cameras, sensors, and alarms in our Security & Cameras collection.