This article is about the Original SimpliSafe system. If you purchased a new system in 2018 or later, you likely have the All-New SimpliSafe. If you're not certain which system you have, you can tell the difference here.
You will need to activate batteries for each component before using your system. To activate batteries, simply pull on and remove the white protective strip from each component. This strip will be located on the back of all the components, except for the 105dB Siren and Water Sensor, which do not have battery tabs.