four contact sensors, and a keypad—everything you need to get started. Setting up the system is simple: Just download the Ring app, plug in the base station, place the sensors where needed ...

Ring Alarm Outdoor Siren goes on sale on March 31 ... The UK starting price is £219 which includes a base station, keypad, contact sensor, motion detector and a range extender.

Currently, Ring is owned by Amazon and offers a variety of security products beyond video doorbells that includes indoor/outdoor ... certain contact sensor when activating your Ring Alarm system ...