SimpliSafe is a DIY home security system with contract-free professional monitoring, peel-and-stick sensors and no installation appointments required.
SimpliSafe pioneered the modern self-installed security system: a base station, wireless keypad and sensors you stick on doors, windows and walls yourself in under an hour. The system covers intrusion, fire, carbon monoxide, water leaks and freezing pipes, and can be expanded with indoor and outdoor cameras, a video doorbell and smart locks. Monitoring is month-to-month with no long-term contract, and the system keeps working on cellular backup if your Wi-Fi or power goes down.
The hardware is thoughtfully designed for real life: sensors run for years on a battery, the base station carries a 24-hour backup battery, and the whole system can move house with you in a box. SimpliSafe was also among the first DIY brands to add live guard intervention, where trained agents can see and speak through your cameras during an alarm.
Equipment bundles range from about $250 to $730 depending on size, with frequent discounts. Self-monitoring through the app is free. Professional monitoring starts with Standard at $22.99/month; Core at $32.99/month adds camera recording and video verification, while Pro ($49.99/month) and Pro Plus ($79.99/month) add live outdoor guard monitoring.
Homeowners and renters who want real professional monitoring and emergency dispatch without signing a multi-year contract or booking an installer. Because there is no contract, it is also a low-risk way to try professional monitoring before committing to it long term.