A perfect blend of new and old school, the Puck & Hygrometer combo lets you track humidity like never before. Install the Hygrometer for at-a-glance humidity readings and use the puck to both secure your safe and give you minute-by-minute readings of temperature and humidity, all available through the new Lockdown Logic App. Get them both today at one great price.Bundled Products: Puck and Hygrometer