SimpliSafe Custom Home Security System

Purchased in late 2020 and used for ~4 months, then in storage. Base station and keypad tested and work/communicate just fine. Wired indoor security camera lights up when plugged in and base station detects it. Unable to test the motion sensor because it needs a new battery, and I don’t have a new 3V battery to test it, but it should be fine w/new battery. Siren is “found” by base station in test mode but it says there’s an error and “siren not responding” - it might just need better batteries (I tested it with rechargeable batteries which may not have been charged all the way). Bonus new-in-box siren not tested - it comes with batteries but might need new ones since they’ve been sitting in there for 4 years. Included: Base Station (3rd gen) Wireless Keypad (needs 4 new AA batteries) Motion Sensor (needs new 3V battery) SimpliCam Wired Indoor Security Camera (model SSCM2) Siren (needs 4 new AA batteries and possible troubleshooting) NIB Extra Siren (might need 4 new AA batteries) 2 new window decals Extra new adhesive tape for keypad/siren/sensor New Yard sign stake (sorry no actual sign) Set up guide Will be packaged with care. Offers welcome.