MILESEEY NV20 Digital Night Vision
User Manual
Product Overview
Thank you for choosing Mileseey Digital Night Vision. Please read the user guide carefully before use.
- The Mileseey NV20 series is a night vision device for observing objects in dark or low light. The low light observation distance is infinite, and it can reach 200 meters in full darkness.
- The NV20 series can be used normally during the day and night, with functions such as photographing, video recording, and playback. The optical magnification is 5 times and the electronic magnification is 8 times.
- The NV20 series is the best auxiliary tool for human vision extension and is a precision photoelectric instrument for observing targets at night. It can work in extremely low light environments.
- The device is equipped with infrared lighting, suitable for use in dark environments.
- When it is fully dark, turn on the auxiliary lighting and adjust the brightness of the auxiliary lighting source according to the distance of the observed object. The night vision device uses a low-light sensor. When the environment has a certain light source (such as street lights, moonlight), you don't need to turn on the auxiliary light source; just adjust the focal length of the objective lens and the brightness of the screen to make the observation clear.
Appearance
The NV20 features the following components:
- 1. Power switch ?️
- 2. Mode Button ?️
- 3. Up Keypad ?️
- 4. Down Keypad ?️
- 5. Light Button ?
- 6. Eyepiece adjust Handwheel ⚙️
- 7. Objective lens focusing handwheel ⚙️
- 8. Eyepiece
- 9. Objective Lens
- 10. Infrared lens
- 11. USB Port ?
- 12. Micro SD/TF Card Slot ?
- 13. Battery Compartment ?
- 14. Tripod Screw Hole ?
- 15. Wrist Strap Hole
Operation
Power on
Long press the power button (?️) for 4.5 seconds to switch on. The screen lighting up and displaying icons indicates the device is in normal working state. After powering on, you can enter observing (photo) mode for observation and photo-shooting.
Power off
Long press the power button (?️) for 2 seconds to switch off the device, regardless of the current mode.
Icon Description
The screen displays various information including date, time, battery status, infrared light level, magnification, angle, and photo count.
- 1. Photo mode
- 2. Magnification (up to 8x)
- 3. Number of remaining photos
- 4. Current angle
- 5. Pitch value
- 6. Scroll angle
- 7. Battery status display ?
- 8. Infrared light (0-3 gears)
- 9. System time display ?
- 10. Night Mode ?
Scenery observation
- Aim the objective lens at the scene and view the display through the eyepiece.
- Adjust the eyepiece handwheel until the screen is clear.
- Adjust the objective lens handwheel until the observation scene is clear.
- The machine automatically adjusts display brightness based on the average brightness of the scene.
- Use the Up (?️) and Down (?️) keys for electronic zoom (0-8 times magnification).
- Turn off the auxiliary infrared light source when ambient light is bright to save battery power.
- Turn on the auxiliary infrared light source when ambient light is very dark and the scene is unclear. Adjust the light source brightness for clear observation.
- Turning on the auxiliary infrared light source automatically switches the display to black and white mode for observation (photograph, video).
Night Mode / IR Illuminator adjust Mode
- Short press the Mode Button (?️) to enter Night Mode (icon displayed in the upper right corner).
- Short press again to turn on infrared fill light (icon displayed).
- Short press the Mode Button (?️) to cycle through infrared light brightness levels (1-3 gears, 3 being the brightest).
- Short press the Mode Button (?️) again in gear 3 to turn off the infrared fill light.
Warning: Turn off the auxiliary infrared light source when not needed to save battery. Do not block the light source when it is on.
Photo mode
After powering on, the device enters photo mode. Press the Mode Button (?️) to take a picture. "OK" will be displayed, and the photo is saved to the Micro SD card. The screen shows a maximum of 1024 photos, but the actual number may vary based on memory size.
Video mode
Long press the Mode Button (?️) to switch to recording mode (video icon displayed). Short press the Mode Button (?️) to start recording ("START" prompt). The time in the lower right corner counts recording time. Short press again to stop recording ("STOP" prompt). Video files are saved automatically. The time displayed after stopping is the remaining recording time.
Note: Do not power off the machine suddenly during recording to avoid data errors or saving failures. Connect to a computer to format the memory or delete damaged files.
Replay
Long press the Mode Button (?️) to switch to playback mode (playback icon displayed). Short press the Up/Down Keypads (?️) to select a file. Short press the Mode Button (?️) to play the current video or view photos. In playback mode, long press the Mode Button (?️), then short press the Up/Down Keypads (?️) to delete the current photo/video or delete all. Short press the Mode Button (?️) to confirm deletion.
Note: Screen brightness and auxiliary lighting adjustment functions are unavailable in playback mode.
Menu Settings
Long press the Light Button (?) to access the system settings menu.
- Short press the Mode Button (?️) to switch menu options.
- Short press the Up/Down Keypads (?️) to enter setting sub-items.
- Short press the Mode Button (?️) to choose an option.
- Short press the Up/Down Keypads (?️) to confirm.
- Long press the Light Button (?) to exit system menu settings.
Switch mode
The device offers "Pure mode" and "Professional mode".
Date and Time
Access "Time Setting" in the menu. Select "YES" to set the time. Use the Up/Down Keypads (?️) to switch between year, month, day, minute, and second. Press the Mode Button (?️) to adjust the value and the Power Button (?️) to confirm.
Menu Description
| Menu | Options | Description |
|---|---|---|
| Image quality | 1M, 2M, 3M | Choose the size of the image to save. |
| Switch mode | Pure mode, Professional mode | Select display mode. |
| White Balance | Auto | Choose the corresponding option according to different weather. |
| Sunlight | ||
| Cloudy | ||
| Tungsten, Fluorescent | ||
| EV | 2 | According to different lighting environment, adjust the exposure to get better photo effects. |
| 1 | ||
| 0 | ||
| -1 | ||
| -2 | ||
| Audio | Off, On | Turn on/off recording when shooting. |
| Date Tag | Off, On | Keep time mark on files when taking photos and videos. |
| Time Setting | Yes, No | Set system time. |
| Auto Power-Off | Off | Shut Down "Auto Power-Off". |
| One Minute | Auto Power Off in 1 minute. | |
| Three Minutes | Auto Power Off in 3 minutes. | |
| Language Setting | English | Set language. |
| Flicker | 50Hz | Adjust flicker frequency. |
| 60Hz | ||
| Format | No, Yes | Format SD card. |
| Reset system | No, Yes | Menu parameter restore factory value. |
Connect to the computer
- The device has a USB 2.0 interface. Connect one end of the USB cable to the device and the other end to the computer. The battery will charge while connected.
- Long press the Power Button (?️) for 4.5s to switch on, then long press the Mode Button (?️) for 3s to access the function screen: Memory/PC Camera/Video mode.
- Select "Memory" to use the device as a mobile storage device. The computer will recognize it, allowing access to the TF card contents.
- Download and install "pc camera software" (e.g., potplayer) from the internet.
- Restart the machine, select "PC Camera", and open the installed software to perform live video/photo operations.
- When connected to a computer in "Video Mode", you can observe the scene through the unit and charge the battery via USB.
Auto Power Off
If no operation is performed for 3 minutes, the machine will automatically turn off. This function can be configured or disabled in the menu settings. Auto power off is disabled during recording and playback.
Battery selection
This device uses a 3.7V rechargeable 2000mAh lithium battery. For the first charge, ensure it lasts over 10 hours for optimal battery capacity.
External power supply
- The machine is equipped with a USB data cable. It can be charged via an external power adapter or computer USB port.
- The internal battery charges when an external power supply is connected.
Basic parameters
| Category | Item | Parameter value |
|---|---|---|
| Optical performance | Optical Magnification | 5X |
| Objective size | 35 mm | |
| Field of view | 7°x3.9" | |
| Eyepiece adjustment range | ±0.5 diopter | |
| Low light observation distance | 2m~∞ | |
| No light Total black observation distance | ~200m | |
| Electronic performance | Sensor | Low illumination HD 1/3 CMOS |
| Pixel | 130W | |
| Pictures | 1280*720 | |
| Video | 720P | |
| Display Screen | 1.54 inch | |
| Digital Magnification | 8X | |
| power supply | Operating Voltage | 3.7V DC |
| Replaceable battery | 2000mA rechargeable lithium battery | |
| power supply | Charger | 5.0V/700mA Adapter |
| Size (length*width*height) | 178x72x78mm | |
| other | Weight | 300g |
Package Lists
- Night Vision Monocular: 1
- USB data cable: 1
- Carrying Case: 1
- Lens Cleaning Cloth: 1
- 8GB Micro SD Card: 1
- Shoulder Strap: 1
- Hand Strap: 1
- 2000mA lithium battery: 1
Using Environment and Precautions
- Store the device in a soft case. Operating environment: -5~40°C, relative humidity not exceeding 80%.
- Store in a clean and dry place to avoid moisture, mold, heavy pressure, mechanical damage, humidity, and direct sunlight.
- Avoid using in rain or fog. Prevent dropping or shocking.
- If the LCD screen does not light up, the voltage is too low and requires charging.
- To clean the objective lens, eyepiece, and laser illuminator surface: first blow off sand and dust, then wipe with a soft cloth.
- If the night vision device is not used for a long time, keep the battery frequently charged to prevent failure.
Copyrights
Product specifications are subject to change without notice. Mileseey Technology Co., Ltd. reserves all interpretation rights. All trademarks, product images, and technical parameters are properties of Mileseey Technology Co., Ltd. All rights reserved.
