How do I calibrate the internal hygrometer of The Duke humidor

It features a white carbon fiber construction with chrome accents

the LED light installation is specially designed with water-protected light strips

and Lighter Instructions

Bey-Berk Lacquer Inlayed Wood Poker Game Set - G515 humidor hygrometer How do I calibrate thePoker Set with 300, 11. 5 gram Clay Composite Chips, Two Decks of Playing Cards & 5 Poker Dice in a Inlaid Lacquer Wood Box. Perfect for any man cave, game room or office! This poker is the real deal with casino grade clay composite playing chips, two decks of playing cards and 5 poker dice. Components are of professional playing quality. A total statement piece. Poker Set with 300, 11. 5 gram Clay Composite Chips, Two Decks of Playing Cards & 5 Poker