The LockdownA(R) Puck(TM) is a state-of-the-art monitoring and security device that provides true peace-of-mind with real-time notifications and control using the free Lockdown Logic(TM) App. Put it in your vault to track temperature and humidity, movement, or when the door is opened all from the palm of your hand. With fully customizable setting you choose how often and who receives notifications. From protecting guns and ammo to your family heirlooms, you can trust the Lockdown Puck to keep your valuables safe and secure. The Puck is Wi-Fi based and does require a strong connection. In some instances a Wi-Fi extender may be needed and is not included. LOGIC Enabled(TM) Mfg: Lockdown