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 3 cubic feet size with 200 cigar capacity. The humidity inside the humidor is measured by a built-in high accurate digital sensor. The micro-processor 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 60 to 80 by user to best taste. -5~+5 calibration date can be set by user. The sponge in the cartridge is water pre-soaked.

How to install the humidifier?
Fill cartridge with CLEAN 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 CLEAN 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?
'H2O' indicates 'lack of water' when the measured humidity value is continuously 10% at least lower than the setting humidity value for two hours. If the humidor is too big, or not sealed well, or with cooling function and the humidifiers are not enough to raise the humidity to close to setting value for 2 hours, the humidifier could alarm for 'lack of water' .
Can the humidor be sealed well with the power cord?
The thin paper ribbon cable be used for passing through the seam of the lid and keep air-tightness.