How do I monitor the humidity levels in the humidor

to ensure proper closing of door after many years of use

This is an upmarket looking humidor

It's essential to avoid exposing cigars to extreme temperatures or fluctuations

HYDRA-SM Electronic Humidifier Travel Humidors How do I monitor theThe Hydra SM Personal Series Cigar Humidifier is designed to automatically regulate the humidity inside large desktop or mini cabinet humidors up to 8 cubic feet in size. Add up to 3 optional external fans to extend the Hydra's humidification capabilities even further! Features:: Suitable 800 100 Cigars Large LED for easy viewing Reports humidity reading every 30 seconds HygroSet adjustable technology Foam filled water cartridge One internal fan and