LIBERTY SAFE HUMIDITY AND TEMPERATURE MONITOR The easiest way for customers to monitor their safe's interior! With Liberty's easy-to-use gun safe humidity and temperature monitor, valuables have never been better protected. With a clean, readable display, your customers can know their safe's internal conditions at just a glance. The display shows current humidity and temperature levels and keeps a record of max highs and lows that the safe experiences. The hygrometer requires only a single AAA battery to run (included in the box), and the energy efficient LCD display means your customers won't be changing it for a while. Just set it up inside the safe, and let the sensor do the rest. Reliable and accurate 10 second refresh rate Clear LCD digital display Mounts with flip-out stand or magnet Tracks high and low levels Easy-read climate conditions icons Product Dimensions: 3.1" x 2.6" x .8" Requires 1x AAA battery (not included)