Update: Deal over
SimpliSafe2 Wireless Home Security System 8-Piece Plus Premium Package – Link 
This is on sale right now via Amazon for it’s lowest ever of just $219.99 w/ free shipping!
- Easy to install; no tools, wires, or programming; Batteries included
- Keychain remote for quick access
- Entry sensors for doors and windows
- Base station comes with built-in rechargeable backup battery; powers system for two full days
- Wireless keypad with secret duress PIN
- Optional $14.99/month (no contract required) saves you hundreds for high quality service, includes 24/7 professional alarm monitoring