Refurbished Home Security Shop

We check and test all our used systems to ensure they are operating and provide our standard 3 year product warranty.

Refurbished Wireless Home Security System: 6 components SOLD OUT

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New: $254.94

Used: $188.66

You save 26%

Refurbished Wireless Home Security System: 8 components SOLD OUT

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New: $344.92

Used: $248.34

You save 28%

Refurbished Wireless Home Security System: 10 components SOLD OUT

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New: $374.90

Used: $262.43

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Refurbished Wireless Home Security System: 12 components SOLD OUT

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New: $404.88

Used: $283.42

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Refurbished Wireless Home Security System: 18 components SOLD OUT

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New: $597.81

Used: $410.42

You save 31%

To purchase a new SimpliSafe security system visit our main shop

batteries included
Lithium Batteries - powering your sensors for 5 years
Batteries are pre-installed in each of your sensors.
Changing a battery takes just 13 seconds

How does SimpliSafe's Monitoring compare to ADT's

Cancel anytime. Renew your subscribtion whenever

When we say cancel anytime, we mean it. Just call us at 1-888-957-4675. We'll ask you for your "safe word" to ensure it's really you cancelling. There is NO cancellation fee, ever.

If you decide you'd like to renew your subscrition, there is no nasty "activation" fee that other companies charge.

Our UL Certified Central Station is there for you 24/7

Established in 1975, our monitoring center has provided professional alarm response to millions of customers for over 30 years.

  • Multiple fiber optic data lines provide redundancy
  • Multiple uninterruptable power supplies and back-up gas generators
  • Unique and custom software programs maintain the flow of emergency dispatching even in the event of national disasters
  • Certified central station monitoring qualifies you for up to 25% off your homeowners insurance premium

How does Alarm Monitoring work?

A wireless sensor is triggered and
instantly alerts your Base Station

The alarm siren sounds
Base Station sends alarm signal over cellular network
Our professional staff receive your alarm signal
The operator contacts you and others you designate before calling the police

Unless you cancel the alarm with your "safe word", the operator will dispatch the police to your location to apprehend burglars and make sure you are safe.

Wireless Entry Sensors - the first line of defense

Easy to install on every type of door or window

The magnet goes on the door or window, and the sensor goes on the frame (or vice versa). Magnet can be placed up to 2 inches from the sensor, so sensors fit on all types of doors and windows.

SimpliSafe sensors come with the battery pre-installed and adhesive tape pre-applied, making installation a snap.

Door Chime

When your system is OFF and a door or window opens, the Base Station will sound a door-chime, so you'll know if someone's coming in.

How does it work?

The sensor detects whenever the magnet moves more than two inches away from it - so it knows whenever the door or window opens.

Keychain Remote Control - arming your system is as easy as locking your car

Swivel Loading - Rotate the keyring for easy loading onto your keychain.

Press this "Panic" button to trigger the siren immediately.

Press this "Away" button when you are leaving your home or office.

Press this "Off" button when you return.

  • Dimensions: 3" x 0.8"
  • Works when within 100 ft of your Base Station

SimpliSafe Wireless Keypad - the safest keypad in the industry

Back lit LCD display Home and Away modes:
When you leave, press the "Away" button to fully activate all sensors in your security system. Use "Home" mode for partial activation of your system—all sensors except your Motion Sensors will be armed.
Dimensions: 6.5" x 3.5" Can be placed up to 100 ft from Base Station

Problem: Most wireless alarm systems have an Achilles heel - if a burglar smashes the keypad quickly enough, the police don't get alerted.

Solution: SimpliSafe has solved this problem by taking the "brains" out of the Keypad and putting them into a separate Base Station, which is hidden somewhere in your home or office building.

When an alarm is triggered, the Keypad beeps to distract burglars.

Meanwhile, the Base Station stays quiet while it alerts the monitoring service (which takes just a few seconds). Once the alert has been safely sent, the Base Station will blast the sirens.

Unlike other alarms, if a SimpliSafe Keypad were smashed, the alarm would continue to function.

SimpliSafe Motion Sensor - the thermal motion detective

Pet Friendly Your dogs and cats under 50lbs won't trigger the alarm. Got a Big Dog? Here's a tip for using our Motion Sensors:

Normally, the Motion Sensor looks straight out and down towards the ground. By turning the sensor upside down, it will instead look straight ahead and upwards. This way, you can place the sensor 5 ft off the ground, and the dog won't trigger it, but a person would.

Full Room Coverage

Detects motion within 30 feet. The sensor has a "field of vision" of 90 degrees, and looks downwards.

Can be placed up to 400 ft from Base Station
Dimensions: 3" x 2.25" x 1.75"

SimpliSafe Panic Button - press it to get help

If you ever need to get immediate help, just press the Panic Button for two seconds, which will instantly trigger the alarm.

Our monitoring center will then call you to check if you're okay. If you don't answer your phone, or if you answer but don't give your "safe word" we'll alert the police that you're in danger.

If you're a retail or business customer, we can program your system to activate a "silent panic" feature for you, which would allow you to signal for help without alerting the intruder.

  • Dimensions: 3" x 2"
  • Can be placed up to 400 ft from Base Station
SimpliSafe Siren

SimpliSafe Additional Siren - the burglar blaster

This 105 decibel siren will feel like sitting in the front row of an ear-piercing rock concert.

Get two or more and your entire neighborhood will peek out of their windows. This siren will ensure any foolish burglar knows you're protected. Look out burglar - the sheriff's in town.

  • Weather resistant for outdoor use
  • Easily mount under an eave outside or adhere to a wall inside
  • Wireless, with a 1-2 year battery life (4 AA batteries included)
  • Dimensions: 6" x 3.5"
  • Add as many as you want. You're in charge

SimpliSafe Instant Smart Alerts - stay in the know

Feel greater peace of mind with SimpliSafe Smart Alerts. When you purchase Professional Alarm Monitoring with Smart Alerts, you'll have the benefit of an instant email or SMS text notifying you of events in your home, such as:
  • Alarm Event and Alarm Cancel Alerts: Get a back-up notification of all alarm events in addition to a call from our monitoring center
  • Activity Alerts: We'll send you notifications whenever anyone turns on or turns off your alarm. We'll send you details like which PIN was used to disarm your system, so you'll know when your kids, housekeeper, landlord or pet caretaker arrive at your home and when they leave
  • Error Alerts: peace of mind to know if something goes wrong with your system at home
  • Smart Alert Log: An online log of all alerts is available in your SimpliSafe Account

SimpliSafe Base Station - the brains of your system

Backup Battery lasts up to 4 days during a power outage. Base Station will recharge them once the power is restored to your home.
AC Power Plug-in
Plug-n-Play: Just plug in your Base Station and it will locate and control all of your sensors, making SimpliSafe the easiest security system in the world to install.
Built-in micro cell phone sends your alarm signals to our monitoring center instantly. It can also send you a text and email, whenever your system is armed or disarmed.
Built-in 85 Decibel Siren wails when your alarm is triggered.
Voice prompts guide you through installation.
Start-up greeting

Sorry, flash is not available.

Soft blue light glows, when your system is armed.
Phone and Internet: Connect to our monitoring center in three ways. You always have cellular, but if you'd like you can use your phone line or internet connection as well.
SimpliSafe Wireless Home Security Warranty
Save Hundreds in 15 Minutes (or less)
when you can Do-It-Yourself
diy home security system installation video
SimpliSafe is completely wireless and installs in minutes. Our system arrives pre-programmed to work instantly. No wires, no strangers drilling holes in your walls—No Install Fee!

Two Plans—Two Bargains

24/7 Alarm Monitoring black headset icon

Professional Monitoring for less than 50 cents a day

  • A team of UL Certified operators will ensure the safety of your home round-the-clock
  • Subscribe and your system’s built-in micro cell phone will transmit your alarm signals
  • No Phoneline Needed

No Contracts means you can Cancel Anytime

  • Alarm monitoring is completely optional
  • Cancel or re-activate it anytime with no cancellation or activation fees

$14.99/month

Compare to 3 year Contract Plans by ADT $42.99/month, Xfinity $29.99/month

24/7 Total Alarm Monitoring + Online Command black headset icon speech bubble icon speech bubble icon

24/7 Total Monitoring

  • 24/7 Burglar Alarm Monitoring (Coming Soon: this plan will offer fire, carbon monoxide, freeze & leak/flood monitoring)

Online Command via your computer or smartphone

  • Add PINs and name them—know who is disarming the system
  • Control system and sensor settings, add/remove sensors & more!

New Secret Alert! feature

  • Get an alert when an “alert only” sensor is triggered—know when private drawers, jewelry, liquor & medicine cabinets are opened

Email/SMS Text Alerts

  • Know when your alarm is triggered, when your system is armed or disarmed and by whom. Alerts sent to your email/SMS text

$24.99/month

Compare to 3 year Contract Plans by Vivint $49.99/month, Xfinity $39.95/monthh