Skip to main content

How to add a new sensor to an existing SimpliSafe system

If you’re looking to upgrade your SimpliSafe home security system, you’ll be glad to know that most setups allow you to easily add new sensors. In fact, there are two different methods you can use – one that adds a single new sensor, or one that adds multiple new sensors.

You can also carry out the process using your SimpliSafe Keypad or through the SimpliSafe app. Here’s how to add a new sensor to an existing SimpliSafe system.

Difficulty

Easy

Duration

15 minutes

What You Need

  • Existing SimpliSafe system

  • New sensor

  • Smartphone (optional)

discounted simplisafe security system with free camera 08
Image used with permission by copyright holder

How to add a new sensor to an existing SimpliSafe system using your Keypad.

It only takes a few steps to add a single sensor to your SimpliSafe system. First, open the menu on your Keypad. Then navigate to the Devices menu and find the Add device option. This will walk you through the setup process. If you want to add multiple sensors, it’s a bit more involved. Here’s how it works:

Step 1: Open the menu.

Step 2: Select the Setup and Naming menu.

Step 3: Using the right rocker, move forward and find the Press a button on a device to test and name option.

Step 4: On the sensor you want to add, press the test button.

Step 5: Next, name your sensor on the Keypad.

Step 6: Continue this process until you’ve added all sensors to your existing system.

How to add a sensor to SimpliSafe using the smartphone app.

You can add sensors to your system using both the web app or mobile app. If you want to use the web app, simply head over to the official website and find the Devices menu. Then, select Add or name device to begin the process. If you want to use your smartphone, follow these steps:

Step 1: Navigate to the My System submenu.

Step 2: Choose the Device Settings option.

Step 3: Select the plus icon at the top of the screen to begin the process.

The Original SimpliSafe system on a table.
Image used with permission by copyright holder

How to add a sensor to the Original SimpliSafe System

While the above steps work for the new Gen 3 SimpliSafe system, older models need to follow a different set of guidelines. If you own the Original SimpliSafe System and are on the Fast Protect Monitoring Plan, you can add sensors by heading to your online account and finding the Settings submenu in the Devices menu. From there, you can select Add Device to start the process.

If you have no monitoring plan or the Standard Monitoring Plan, you can use your Keypad.

Step 1: Press the Menu button and enter your PIN.

Step 2: Press the 3 button, then press the Away button.

Step 3: Choose the device you want to install using the Off and Home buttons. Press the Away button to select.

Step 4: Enter the serial number of your sensor to add it to your setup.

Editors' Recommendations

Jon Bitner
Jon Bitner is a writer covering consumer electronics, technology, and gaming. His work has been published on various websites…
This 4-camera Lorex wireless video surveillence system is $200 off
A Lorex 2K Wireless camera mounted on an outside wall.

One of the best security camera deals today is over at Crutchfield with $200 off the Lorex 2K Wireless NVR System. Usually priced at $550, it’s down to a fantastic $350 until March 17. That means you don’t have very long to enjoy the significant discount. If you need to know more, we’re here to help with some insight about the security system below. Remember to buy it before March 17 if it sounds like the right setup for you.

Why you should buy the Lorex 2K Wireless NVR System
Sure to be one of the best home security camera systems for many people, the Lorex 2K Wireless NVR System is packed with features. It comes with an easy-to-use network video recorder along with four weather-resistant 2K cameras which are battery-powered and wireless. Any time the cameras notice motion, you’ll get a notification to your smartphone. You can then opt to view the live feed as well as talk to anyone on the other side. Its motion-based detection system does a great job of highlighting things only when there are people rather than objects, cutting down on false alarms.

Read more
How to factory reset a Google Nest Cam (indoor or outdoor)
Closeup of camera on the Google Nest Cam (battery).

One of the most popular security cameras of 2024 is the Google Nest Cam. With a sleek design, reasonable price, and support for both indoor and outdoor use, it’s a versatile camera that works well regardless of where it's installed. However, like all electronics, things don't always work as expected. When this happens, it might be time to perform a factory reset.

Read more
How to remove a Ring Doorbell from a door or wall
Person installing Ring video doorbell

Ring Video Doorbells are incredibly popular, but they're not the only option on the block. And if you've decided to move away from your Ring Doorbell and install something from Arlo, Google, or one of the many other available brands, you're going to need to remove your old Ring Doorbell from your porch. You'll also need to remove it if you're moving to a new home and decide to bring it with you instead of leaving it behind for the new owners.

Aside from removing the entire doorbell, Ring also lets you take off just its faceplate. This is required to recharge battery-powered models, though you'll also find a button underneath the faceplate that can help reconnect a disconnected doorbell. It's important to learn how Ring Doorbells work before tinkering with any hardware, so consider reading our guide before doing anything else.

Read more