HumidiCup® S1 Electronic Cigar Humidifier, Small Size for 40-150 Count Desktop Humidor, 40% to 90% Setting Range, Stable Humidty Control

S1 is an electronic cigar humidifier that is similar as M1 but with short cartridge for small size humidors up to 2 cubic feet size with 150 cigar capacity. The humidity inside the humidor is measured by a built-in Humidity sensor with 3% accuracy. The MCU controls the quiet fan to run to blow moist airflow into the humidor according to the measured humidity value.The humidifier is factory set at 70% and can be adjusted from 40 to 90 by user to best taste. -20~+20 calibration date can be set by user. The sponge in the cartridge is water pre-soaked.

How to install the humidifier?
Fill cartridge with DISTILLED WATER until sponge is saturated. Pour out excess water from cartridge. Push the control unit until it clicks into place with alignment marks are aligned.
How often to add water to S1 for a table humidor?
Normally once a month and depends on the size, sealing status of humidor and environmental humidity.
Can the Humidifiers be used with moisturizing liquid?
No, only DISTILLED WATER can be used. Please DO NOT use any other chemical liquid that could damage the humidity sensor.
Can the Humidifiers be used with a battery?
The humidifiers can be used with a 5V external battery BUT most cellphone power banks with low current shut-down function will shut down when the fan stops.
Why does my S1(or M1) indicate 'H2O' however the cartridge is full of water?
The thin paper ribbon cable be used for passing through the seam of the lid and keep air-tightness.