Overview
The Yocan UNI Pro Plus is a premium 510 box mod featuring precision voltage control from 2.0V to 4.2V in 0.1V increments, an OLED display for clear readings, and an adjustable cartridge holder that accommodates virtually any size cartridge. This comprehensive guide covers everything you need to know to maximize your experience with this device.
What's in the Box
- Yocan UNI Pro Plus Box Mod
- USB Type-C Charging Cable
- User Manual
Getting Started
Initial Charge
Before first use, fully charge your device:
- Connect the USB-C cable to the charging port
- Plug into a USB power source (5V recommended)
- OLED display shows charging status
- Full charge takes approximately 1-2 hours
- Display shows 100% when complete
- Disconnect when fully charged
Powering On/Off
- Turn On: Press the fire button 5 times rapidly
- Turn Off: Press the fire button 5 times rapidly
- OLED display activates when powered on
- Display shows current voltage and battery level
Attaching a Cartridge
- Ensure device is off for initial setup
- Screw your 510 cartridge into the threaded connection
- Adjust the width slider to grip the cartridge securely
- Use the height lever to position cartridge optimally
- Ensure snug fit without over-tightening
Adjustable Cartridge System
Width Adjustment
The sliding mechanism accommodates all cartridge diameters:
- Locate the width slider on the device
- Slide outward to expand for wider cartridges
- Slide inward for slim cartridges
- Stop when cartridge is held securely
- Avoid excessive pressure
Height Adjustment
The lever system positions cartridges correctly:
- Locate the height adjustment lever
- Move lever to raise or lower cartridge
- Position cartridge for comfortable airflow
- Ensure cartridge mouthpiece is accessible
- Lock position when satisfied
Compatibility Examples
| Cartridge Type | Width Setting | Height Setting |
|---|---|---|
| Slim pen-style | Narrow | Lower |
| Standard 1ml | Medium | Medium |
| Wide tank | Expanded | Higher |
| Short/stubby | Any | Lower |
| Tall cartridge | Any | Higher |
Precision Voltage Control
Understanding the Range
The UNI Pro Plus offers exceptional control:
- Minimum: 2.0V (ultra-low for delicate oils)
- Maximum: 4.2V (full power for thick concentrates)
- Increments: 0.1V steps (23 settings total)
Adjusting Voltage
- Power on the device
- Press the + button to increase voltage
- Press the - button to decrease voltage
- Watch OLED display for real-time feedback
- Each press changes by exactly 0.1V
Voltage Guide by Oil Type
| Oil Consistency | Voltage Range | Notes |
|---|---|---|
| Very thin | 2.0V - 2.4V | Prevents burning, max flavor |
| Thin | 2.4V - 2.8V | Excellent flavor, light vapor |
| Medium | 2.8V - 3.2V | Balanced experience |
| Thick | 3.2V - 3.6V | Ensures vaporization |
| Very thick | 3.6V - 4.2V | Maximum heat for heavy oils |
Voltage Guide by Priority
| Priority | Recommended Range | Why |
|---|---|---|
| Maximum flavor | 2.0V - 2.6V | Lower heat preserves terpenes |
| Balanced | 2.7V - 3.4V | Good flavor with visible vapor |
| Maximum vapor | 3.5V - 4.2V | Higher heat produces more clouds |
Finding Your Perfect Setting
- Start at 2.4V for a new cartridge
- Take a small test puff
- Assess flavor and vapor production
- Increase by 0.1V if more vapor desired
- Decrease if taste seems burnt
- Note your ideal setting for that cartridge
OLED Display
Display Information
The screen shows essential data:
- Current voltage setting (large, clear numbers)
- Battery level percentage
- Charging status when connected
- Power on/off confirmation
Reading the Display
- Voltage: Displayed prominently (e.g., "3.2V")
- Battery: Percentage shown (e.g., "75%")
- Charging: Icon or animation indicates active charging
- Low Battery: Warning when charge is needed
Pre-Heat Function
When to Use Pre-Heat
The pre-heat function is valuable for:
- Cold weather vaping
- Very thick or viscous oils
- First use of a new cartridge
- Cartridges that have been sitting unused
- Improving oil flow
How to Activate
- Ensure cartridge is attached
- Activate the pre-heat function
- Device gently warms the cartridge
- Wait for cycle to complete
- Take your first puff
Benefits
- Prevents dry hits
- Improves first-puff experience
- Better vapor production
- More consistent sessions
- Extends cartridge life
Battery Management
900mAh Capacity
The upgraded battery provides:
- One to two days of typical use
- 150-300+ puffs per charge
- All-day reliability
- Extended session capability
Maximizing Battery Life
- Use lowest effective voltage
- Avoid chain vaping
- Charge before complete depletion
- Store at partial charge when not in use
- Keep away from extreme temperatures
Charging Best Practices
- Use the included USB-C cable
- Connect to reliable power source
- Monitor charging via OLED display
- Disconnect when 100% is reached
- Avoid overnight charging
Battery Indicators
- OLED shows exact percentage
- Low battery warning appears around 20%
- Device may auto-shutoff at critical low
- Charge promptly when warning appears
Care & Maintenance
Cleaning the Device
Exterior:
- Wipe with soft, dry cloth
- Remove fingerprints and residue
- Avoid harsh chemicals
- Don't use wet cloths
OLED Display:
- Clean gently with microfiber cloth
- Avoid scratching the screen
- Don't use liquid cleaners
- Keep free of oils and residue
Cleaning the 510 Connection
- Remove cartridge from device
- Inspect connection for oil buildup
- Use dry cotton swab to clean threads
- Clean connection plate gently
- Ensure no debris remains
- Allow to dry before reattaching cartridge
Cleaning Frequency
| Component | Frequency |
|---|---|
| Exterior | Weekly or as needed |
| Display | Weekly |
| 510 connection | Every cartridge change |
| Charging port | Monthly inspection |
Storage
- Store in cool, dry place
- Avoid direct sunlight
- Keep away from extreme temperatures
- Remove cartridge for long-term storage
- Store at 40-60% battery level
Safety Information
General Safety
- Adult use only (21+)
- Keep away from children and pets
- Do not modify the device
- Use only compatible 510 cartridges
- Stop use if device malfunctions
- Do not use if damaged
Battery Safety
- Use only included or quality USB-C cables
- Do not expose to extreme heat or cold
- Do not puncture or damage the device
- Charge on non-flammable surface
- Unplug when fully charged
- Do not leave unattended while charging
Usage Safety
- Do not use with damaged cartridges
- Allow device to cool between sessions
- Start at lower voltage and increase gradually
- Stop if you notice unusual tastes or smells
- Do not exceed recommended voltage for your cartridge
Storage Safety
- Store away from flammable materials
- Do not store in vehicles during extreme weather
- Keep dry - avoid water exposure
- Store in protective case when traveling
Specifications Summary
| Specification | Value |
|---|---|
| Battery Capacity | 900mAh |
| Voltage Range | 2.0V - 4.2V |
| Voltage Increments | 0.1V (23 settings) |
| Connection | 510 thread |
| Display | OLED |
| Charging | USB Type-C |
| Cartridge Fit | Adjustable width/height |
| Material | Zinc alloy |
| Pre-Heat | Yes |
Available Colors
- Onyx
- Sand
- Sky Blue
- Sage
- Burgundy
Warranty Information
The Yocan UNI Pro Plus is covered by manufacturer warranty. Contact Yocan directly for warranty claims and support. Keep your proof of purchase for warranty service.
Yocan Support: Visit the official Yocan website for support resources and warranty information.
Related: Yocan UNI Pro Plus Review