Introduction
Thank you for choosing the Pard Merlin ME-50/850 Digital Night Vision Binoculars. This device is designed to provide clear observation and recording capabilities in low-light and complete darkness conditions. Featuring a 1920x1080 CMOS sensor, 4.6x optical magnification with 2x digital zoom, and an 850nm infrared illuminator, it is suitable for various outdoor activities such as hunting, wildlife observation, and security. This manual provides essential information for the proper setup, operation, and maintenance of your device.

Image: The Pard Merlin ME-50/850 Night Vision Binoculars.
What's in the Box
Please check the package contents to ensure all items are present:
- Merlin Digital Night Vision Binocular
- Type-C Cable
- Cleaning Cloth
- User’s Manual
- After Sales Card
Product Overview
Familiarize yourself with the main components and controls of your Pard Merlin ME-50/850 binoculars.

Image: Diagram illustrating the main controls and components of the binoculars, including objective lens, IR illuminator, LCD display, diopter adjustment, IPD adjustment, menu mode button, power button, zoom/playback/WiFi buttons, and record/save/PIP buttons.
- Objective Lens: Captures light for imaging.
- IR Illuminator: Provides infrared light for night vision.
- LCD Display: Internal screen for viewing images and menus.
- Diopter Adjustment: Adjusts focus for individual eye strength.
- Interpupillary Distance (IPD) Adjustment: Adjusts the distance between eyepieces to match your eyes.
- Control Buttons: For power, menu navigation, zoom, recording, and Wi-Fi functions.
- Type-C Port: For charging and data transfer.
- Tripod Mount: For attaching the device to a tripod.
Setup
1. Charging the Battery
The device is equipped with a high-capacity 5000mAh rechargeable battery. Before first use, fully charge the battery.
- Locate the Type-C charging port on the device.
- Connect the provided Type-C cable to the device and a compatible USB power source (e.g., wall adapter, power bank).
- The charging indicator will show the charging status. Ensure the device is fully charged for optimal performance (approximately 18 hours of operation with IR off, 12 hours with IR on).

Image: The binoculars connected to a Type-C charging cable, illustrating the internal 5000mAh battery.
2. Inserting a Micro SD Card (Optional)
To record photos and videos, a Micro SD card (up to 128GB, not included) is required.
- Locate the Micro SD card slot, usually protected by a rubber cover.
- Carefully insert the Micro SD card with the contacts facing down until it clicks into place.
- To remove, gently push the card until it springs out.
3. Adjusting Diopter
The diopter adjustment compensates for individual differences in eye strength, ensuring a clear view of the internal display.
- Look through the eyepieces.
- Rotate the diopter adjustment wheel (typically located near the eyepiece) until the on-screen display (e.g., battery icon, time) appears sharp and clear.

Image: Illustration of the diopter adjustment wheel, showing how to fine-tune focus for clear vision.
4. Adjusting Interpupillary Distance (IPD)
Adjust the distance between the eyepieces to match the distance between your pupils for comfortable viewing.
- Hold the binoculars up to your eyes.
- Adjust the rear adjustment ring or physically move the eyepieces closer or further apart until you see a single, clear circular field of view.

Image: Illustration of the adjustable interpupillary distance feature, showing how to align the eyepieces for personalized viewing.
Operating Instructions
1. Power On/Off
- To Power On: Press and hold the Power button until the display illuminates.
- To Power Off: Press and hold the Power button until the device shuts down.
2. Day/Night Mode Switching
The binoculars can operate in both day (color) and night (monochrome with IR) modes.
- The device typically switches automatically or can be manually toggled via a dedicated button or menu option. Refer to the on-screen menu for specific controls.

Image: Comparison of day vision (color) and night vision (monochrome with IR) capabilities of the binoculars.
3. Zoom Function
The device features 4.6x optical magnification and up to 2x digital zoom, for a total of 9.2x magnification.
- Use the designated zoom buttons (often labeled 'Up/Zoom+') to increase magnification.
- Decrease magnification using the corresponding button.

Image: Illustration demonstrating the 4.6x optical and up to 9.2x digital zoom capabilities, showing varying levels of magnification.
4. Infrared (IR) Illuminator
The 850nm IR illuminator provides enhanced visibility in complete darkness, with 3 adjustable brightness levels.
- Press the IR button to cycle through the brightness levels (Low, Medium, High, Off).
- Adjust the IR level based on ambient light conditions and observation distance.

Image: Visual representation of the 850nm infrared night vision with three adjustable brightness levels, showing improved clarity in darkness.
5. Photo and Video Recording
Capture Full HD photos and videos with audio, loop recording, and time stamp features.
- To take a photo: Press the Photo button (often labeled 'OK/Record/Save/PIP') once.
- To record video: Press and hold the Video button (often the same as Photo button) to start recording. Press again to stop.
- Ensure a Micro SD card is inserted for recording.

Image: Display showing the Full-HD video and photo recording capabilities, including a Picture-in-Picture mode.
6. Screen Brightness Adjustment
Adjust the brightness of the internal display for comfortable viewing in different lighting conditions.
- Navigate to the display settings in the menu or use dedicated brightness control buttons to select one of the 4 available levels.

Image: Illustration of the 4-level adjustable screen brightness and the full-coverage eye mask for comfortable viewing.
7. Wi-Fi and App Control
Connect your binoculars to a smartphone via Wi-Fi using the PardVision2 app for live view, remote control, and easy sharing.
- Download the PardVision2 app from your smartphone's app store (available for Android and iOS).
- On the binoculars, activate Wi-Fi mode (refer to the device's menu or a dedicated Wi-Fi button).
- On your smartphone, go to Wi-Fi settings and connect to the network broadcast by the binoculars (e.g., "PARD_XXXX").
- Open the PardVision2 app to establish a connection and access features.

Image: Diagram showing the binoculars wirelessly connected to a smartphone running the PardVision2 app via Wi-Fi.
Maintenance
1. Cleaning
- Lenses: Use the provided cleaning cloth or a soft, lint-free cloth specifically designed for optics. Gently wipe the lens surfaces. Avoid using abrasive materials or excessive pressure.
- Body: Wipe the body of the binoculars with a soft, damp cloth. Do not use harsh chemicals or solvents.
2. Storage
- Store the binoculars in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for an extended period, ensure the battery is partially charged (around 50%) and recharge it every few months to maintain battery health.
3. Water Resistance
The device features an IP67 waterproof and dustproof rating, ensuring reliable performance in challenging outdoor conditions.

Image: The binoculars shown in a rugged outdoor environment, highlighting its IP67 waterproof and dustproof design.
Troubleshooting
If you encounter issues with your Pard Merlin ME-50/850, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low or depleted battery. | Charge the battery fully using the provided Type-C cable. |
| Image is blurry or out of focus. | Diopter or objective lens focus not adjusted correctly. | Adjust the diopter for your eyesight and rotate the objective lens focus ring until the image is sharp. |
| No image in complete darkness. | IR illuminator is off or set to low brightness. | Activate the IR illuminator and cycle through brightness levels. |
| Cannot record photos/videos. | No Micro SD card inserted, or card is full/corrupted. | Insert a compatible Micro SD card. Check card capacity and format if necessary. |
| Wi-Fi connection issues. | Wi-Fi not enabled on device, incorrect app, or signal interference. | Ensure Wi-Fi is active on binoculars. Use the official PardVision2 app. Move closer to the device. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Pard |
| Model Name | ME-50/850 |
| Objective Lens Diameter | 50 Millimeters |
| Magnification Maximum | 9.2 x (4.6x Optical + 2x Digital) |
| IR Illuminator Wavelength | 850nm |
| IR Range | Up to 350m / 1150ft |
| Battery Capacity | 5000mAh |
| Water Resistance Level | IP67 (Waterproof & Dustproof) |
| Eye Relief | 25 Millimeters |
| Diopter Adjustment Range | 3 to -5 |
| Compatible Devices | Smartphone (via PardVision2 app) |
| Item Weight | 441.6 Grams |
| Enclosure Material | Aluminum |
| Operating Temperature | -22°F to +131°F (-30°C to +55°C) |
Warranty Information
The Pard Merlin ME-50/850 Night Vision Binoculars come with a 2-Year Manufacturer Warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the After Sales Card included in your package or contact Pard customer support.
Customer Support
For technical assistance, warranty claims, or any questions regarding your Pard Merlin ME-50/850 Night Vision Binoculars, please contact Pard customer support. Refer to the contact information provided on the After Sales Card or visit the official Pard website for the most up-to-date support details.
Online Resources:
- Pard Official Website: www.pard.com (Note: This is a placeholder URL, please refer to your product documentation for the correct website.)
- PardVision2 App: Available on Android and iOS app stores.