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ONE WORD: CALIBRATION. The Boveda Butler is the only humidor monitor equipped with the Boveda One-Step Calibration Kit. The only way to ensure your humidor readings are truly accurate is with a well-calibrated Boveda Butler. Chemists and lab professionals determine the accuracy of a hygrometer with a “salt test.” The Boveda One-Step Calibration Kit is the ultimate salt test.
It resides in your humidor—right on top of your cigars or affixed to your humidor’s lid. The Boveda Butler communicates via Bluetooth® to the free Boveda app on your iOS 10.0+ or Android 5.0+ mobile device. You can now access your humidor’s conditions all the time.