The guesswork is over! Now you can monitor up to three separate remote humidor units in different locations without having to open the humidors with XIKAR's exciting new Puro Temp Wireless Hygrometer System. This technological wonder monitors the humidity and temperature wirelessly from its base unit, and also alerts you if conditions are not at the desired level. Xikar Puro Temp Wireless Hygrometer System Features: Xikar Manufacturer lifetime warranty Reliable and simple wireless remote reads temperature and humidity levels inside your humidor at a glance. No calibration needed; guaranteed accuracy of +/- 2% RH right out of the box Reads remotes within 60-foot range Eliminates the need to repeatedly open your humidor, which can cause large fluctuations Ability to monitor up to 3 humidors (with additional sensors) Customizable high/low alarm alerts you if your cigars are not in an optimal environment Base unit features clock and displays both F & C degrees Scientifically developed for accuracy and dependability so you can be confident that your cigar investment is safe Xikar Puro Temp System Includes: 1 x Base Unit supporting up to 3 separate remote sensors 1 x Remote sensor