1. Introduction
The Cigar Oasis Ultra 4.0 is an advanced electronic humidor humidifier designed to maintain optimal humidity and temperature levels for your cigars. This device features a compact design, an intuitive LCD display, soft-touch controls, and a sensor-controlled fan for consistent humidity distribution. It is engineered for ease of use and reliable performance, ensuring your cigars are perfectly preserved.
2. Product Overview and Key Features

Figure 2.1: Cigar Oasis Ultra 4.0 Humidor Humidifier.
- Compact and Elegant Design: The Ultra 4.0 is designed for seamless integration, mounting magnetically on your humidor's lid to maximize space while blending functionality with style.
- Simple USB Power Connection: Power is supplied via a ribbon cable connected to any standard USB AC adapter, eliminating the need for battery replacements and simplifying installation.
- Advanced Humidity Control: Features Soft-Touch technology and a backlit LCD for easy monitoring of humidity levels, temperature, and system alerts, ensuring optimal cigar preservation.
- Streamlined Refill System: Utilizes a pre-treated water cartridge system. Simply add distilled water for up to 6 weeks of use. Annual cartridge replacement is recommended for optimal performance.
- Optimized Humidity Distribution: A sensor-controlled fan ensures uniform humidity distribution throughout your humidor, maintaining cigar integrity and helping to eliminate unwanted odors.

Figure 2.2: Diagram illustrating key features of the Ultra 4.0, including sensor-controlled fan, backlit screen, soft-touch buttons, low energy consumption, remote access via Wi-Fi, and compact design.
3. Package Contents
Please ensure all the following items are included in your package:
- Cigar Oasis Ultra 4.0 Humidifier Unit
- Electronic Ribbon Cable
- Pre-treated Water Cartridge
- USB/Power Adapter
- Magnetic Mount Plates

Figure 3.1: All components included with the Cigar Oasis Ultra 4.0 humidifier.
4. Setup Guide
- Prepare the Humidifier: Remove the pre-treated water cartridge from its packaging. Fill the cartridge with distilled water only. Do not use tap water or other liquids, as this can damage the unit and void the warranty.
- Install Water Cartridge: Insert the filled water cartridge into the main humidifier unit until it clicks securely into place.
- Mount the Unit: Use the provided magnetic mount plates to attach the Ultra 4.0 to the inside lid of your humidor. Ensure it is positioned to allow for optimal air circulation.
- Connect Power: Connect the electronic ribbon cable to the humidifier unit. Carefully route the ribbon cable out of the humidor, ensuring it does not interfere with the humidor's seal. Connect the other end of the ribbon cable to the USB/power adapter, then plug the adapter into a standard electrical outlet.
- Initial Power On: The unit will power on automatically once connected. The LCD display will illuminate, showing current humidity and temperature readings.

Figure 4.1: The Ultra 4.0 humidifier mounted inside a humidor lid.
Video 4.1: An instructional video demonstrating the setup and features of the Cigar Oasis Ultra 3.0 Humidifier, which shares similar operational principles with the Ultra 4.0.
5. Operation
5.1 Setting Humidity Levels
The Ultra 4.0 allows you to set your desired humidity level. Use the soft-touch UP and DOWN arrow buttons on the unit's display to adjust the target humidity percentage.
5.2 Monitoring Display
The backlit LCD display provides real-time information:
- SET POINT: Your desired humidity percentage.
- TEMP: Current temperature inside the humidor.
- HUMIDITY: Current humidity percentage inside the humidor.
- Alerts: The display will show alerts for low water levels or other system notifications.
5.3 Wi-Fi Connectivity (Optional)
The Ultra 4.0 includes Wi-Fi capability for remote access via the Cigar Oasis SmartHumidor® app. Refer to the app's instructions for setup and usage. Note that some advanced features or long-term data tracking within the app may require a subscription.
6. Maintenance
6.1 Water Refill
The water cartridge typically provides humidification for up to 6 weeks, depending on humidor size and ambient conditions. When the unit indicates a low water level (via display alert), refill the cartridge with distilled water.
- Carefully remove the water cartridge from the humidifier unit.
- Open the refill port and add distilled water until the cartridge is full.
- Securely close the refill port and reinsert the cartridge into the humidifier unit.
6.2 Cartridge Replacement
For optimal performance and hygiene, it is recommended to replace the pre-treated water cartridge annually. Replacement cartridges can be purchased from authorized Cigar Oasis retailers or their official website.
6.3 Cleaning
Periodically wipe the exterior of the unit with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners. Ensure no water enters the electronic components.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not powering on | Power cable not connected; power outlet issue. | Ensure ribbon cable is securely connected to both the unit and the USB adapter. Verify the power outlet is functional. |
| Humidity not reaching set point | Low water in cartridge; humidor not sealed properly; unit too small for humidor. | Refill water cartridge with distilled water. Check humidor seal for leaks. Consider if a larger capacity humidifier is needed for your humidor size. |
| Display shows "Low Water" alert | Water cartridge is empty or nearly empty. | Refill the water cartridge with distilled water immediately. |
| Wi-Fi connectivity issues | Incorrect Wi-Fi password; 5GHz network; app issues. | Ensure correct Wi-Fi password. The unit typically supports 2.4GHz networks only. Restart the unit and the app. |
| Unit is noisy | Fan obstruction; unit malfunction. | Check for any obstructions around the fan vents. If noise persists, contact customer support. |
8. Specifications
| Brand | Cigar Oasis |
| Model Name | HA3-3000 |
| Special Feature | Quiet Operation, Wi-Fi Enabled |
| Color | Green |
| Filter Type | Water Filter |
| Humidor Capacity | Designed for 50-100 cigars (up to 0.25 Square Feet) |
| Operation Mode | Automatic |
| Voltage | 5 Volts (DC) |
| Product Dimensions | 4.55 x 13.8 x 3.25 inches |
| Item Weight | 15.2 ounces |

Figure 8.1: Dimensions of the Cigar Oasis Ultra 4.0 humidifier.
9. Warranty and Support
The Cigar Oasis Ultra 4.0 Humidor Humidifier is covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Cigar Oasis website.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact Cigar Oasis customer service. Contact information can typically be found on the product packaging or the official Cigar Oasis website.
Cigar Oasis Official Website: www.cigaroasis.com

