Need more sensors?
21-Piece Security System
24/7 wireless protection, named the Best DIY Home Security by tech experts. It’s smart, sleek and secure. Plus, there’s no contract. Ever.
Order now for an expected
Get your system installed by a Pro
Setup starts at $124.99.
Monthly prices presented using
Prices displayed are an example of a 24-mo. payment plan. Order total must be $150+ to select Affirm at checkout.
Entry Sensor
Protects your doors and windows. Works with any door or window.
Motion Sensor
Our most accurate Motion Sensor yet is engineered to tell the difference between people and pets. It protects an entire room from a single location with a 90º field of view and 35 ft. range.
Key Fob
Works just like your car’s key fob. Press a button and your system’s disarmed before you enter your house.
Water Sensor
Detects leaks and potential floods, so you can stop water damage before it happens.
Smoke & Carbon Monoxide Detector
With 2-in-1 hazard detection, get alerted the minute dangerous levels of smoke or CO threaten your home.
Smoke Detector
Triggers when a fire’s still smoldering—before a full fire breaks out. Loud system-wide sirens jolt you awake and out of the house.
Panic Button
If you're at home during an intrusion, press this to trigger your alarm and alert our monitoring center.
Glassbreak Sensor
Perfectly calibrated. Picks up the sound of a smashed window. Not smashed plates.
Temperature Sensor
Triggers if your home drops below 41F, so you can stop pipes from freezing and bursting.
Extra 105dB Siren
About as loud as a Led Zeppelin concert in ’72. Place it inside or outside the house.
Outdoor Security Camera
See what’s happening outside your home, day or night, and get alerts when someone steps onto your property. This camera does not support new SimpliSafe® Active Guard Outdoor Protection.
Wireless Indoor Camera
Our most advanced indoor camera — combine it with select professional monitoring plans to enable intruder intervention. Agents can see and speak to intruders to help stop crime in real time. Intruder intervention is only available with this camera.
Wired Indoor Camera
Our entry-level security camera allows you to see what’s happening at home anytime and get alerts when it detects motion.
Extra Keypad
An extra keypad for garage door entrances, back doors or upper levels of your home. No power needed.
Extra 9" x 9" Yard Sign
Homes without security systems are 3x more likely to be robbed. Let intruders know who’s boss.
Monthly prices presented using
Prices displayed are an example of a 24-mo. payment plan. Order total must be $150+ to select Affirm at checkout.
Test out your SimpliSafe system. If you aren't 100% delighted, call us within 60 days for a full refund and let us pay for return shipping.
Questions? Call 1-800-920-2420
Package Equipment:
$0.00/mo or pay in full $0.00
Extra Equipment:
$0.00/mo or pay in full $0.00
SimpliSafe in your home
Base Station
The brains of the system. Built with a backup battery in case of a power outage. Just plug it in to start protecting.
1 of 5
1 of 5
Professional Monitoring
Core protection against break-ins, fires, and floods powered by Fast Protect™ technology. Security agents are ready around the clock to request dispatch for break-ins and emergencies, all with no long-term contracts or hidden fees.
Agents can see and speak to intruders inside your home during an alarm using the Smart Alarm Wireless Indoor Camera*
Fast police response with verified video evidence*
Built-in cellular connection that keeps you linked to professional monitoring in a power outage
Peace of mind that starts at installation
Set up your new SimpliSafe system yourself or have a highly trained technician do it for you. Either way, you’re backed by expert customer support and a 100% satisfaction guarantee.
Built for the unexpected
Real home security prepares for the worst. So we built backups. And backups for those backups.
SmashSafe
An intruder can damage the keypad. Doesn't matter. We still alert the police. Sorry, bad guys.
Twice Secured
Built-in WiFi. Built-in cellular too. One connection down? The other’s still up. That means your home is always secure.
Built for the unexpected
Real home security prepares for the worst. So we built backups. And backups for those backups.
Disaster Ready
We have numerous monitoring centers spread across the country.
Power Outage Protection
The power fails. We don’t. In a blackout, a back-up battery kicks in and can protect you up to 24 hours.
Built for the unexpected
Real home security prepares for the worst. So we built backups. And backups for those backups.
Confirmed Alerts
Alert confirmation is big. It means that we send an alarm signal until the monitoring center confirms they got it. It’s how you can be absolutely sure help is there when you need it.
Deep Encryption
From sensor to Base Station to monitoring centers and back, your signals are encrypted.
Complete control at your fingertips
Arm and disarm your system with one press of the keypad or through the SimpliSafe App. If an intruder tries to destroy the keypad, it’ll notify our monitoring center immediately.
Detects intruders, not pets.
Alarms that cry wolf? No thanks. We precision-engineered our motion sensors to detect the unique heat signature of humans. Not pets.
"This is one I'm hearing a lot about now. You don't have to drill anything. No wiring needed."