1. Introduction
This manual provides essential instructions for the safe and effective operation, maintenance, and troubleshooting of your Ralcam N505-R1.5M Two-Way Articulating Borescope. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.

Figure 1.1: Ralcam N505-R1.5M Two-Way Articulating Borescope
The Ralcam N505-R1.5M is an industrial endoscope camera designed for detailed inspections in hard-to-reach areas such as engines, automotive components, and HVAC systems. Its ultra-slim probe, articulating tip, and high-resolution display provide clear visual access for various professional and DIY applications.
2. Product Features
- 5.5mm Ultra-slim Probe: The 5.5mm (0.22in) diameter probe is IP67 waterproof and designed to navigate passages smaller than 6.2mm, offering extended reach with its flexible 5.0ft snake tube.
- 5-Inch IPS Screen with 8X Zoom: A large 5-inch IPS display provides enhanced visual clarity, allowing for real-time magnification of details up to 8 times.
- 2-Way 180° Articulation: The probe features 2-way 180° articulation with a locking mechanism for precise control over the camera's direction.
- 8 Adjustable LED Lights: Eight integrated LEDs offer four brightness levels to ensure clear visibility in dark or dim environments.
- 4400mAh Rechargeable Battery: Equipped with a removable 4400mAh battery, providing up to 4 hours of continuous operation. The battery is easily replaceable.
- Ergonomic Design: An anti-slip textured handle ensures a secure grip for comfortable and effective operation.
- Durable Construction: The probe is reinforced with tightly woven tungsten mesh for enhanced flexibility and durability, offering a bend lifespan of over 20,000 cycles.
3. What's in the Box
Carefully unpack the contents and ensure all items are present:
- 1x Ralcam Industrial Borescope Unit
- 1x USB-C Cable
- 1x Carrying Bag
- 1x 32GB Micro-SD Card (pre-installed or separate)
- 1x User Manual (this document)

Figure 3.1: Package Contents
4. Setup
4.1. Charging the Battery
The borescope is equipped with a removable 4400mAh rechargeable battery. Before first use, fully charge the battery.
- Locate the USB-C port on the borescope unit.
- Connect the provided USB-C cable to the borescope and a compatible USB power adapter (not included) or a computer.
- The charging indicator light will illuminate. Allow approximately 4 hours for a full charge.
- Once fully charged, the indicator light may change color or turn off, depending on the unit.

Figure 4.1: Detachable and Rechargeable Battery
4.2. Inserting the Micro-SD Card
A 32GB Micro-SD card is included for storing photos and videos.
- Locate the Micro-SD card slot on the side of the borescope unit.
- Insert the Micro-SD card with the gold contacts facing down (or as indicated by the slot diagram) until it clicks into place.
- To remove, gently push the card in until it springs out.

Figure 4.2: Micro-SD Card Insertion
5. Operating Instructions
5.1. Power On/Off
- To Power On: Press and hold the power button (usually marked with ⏻) for a few seconds until the screen illuminates.
- To Power Off: Press and hold the power button again until the screen shuts down.
5.2. Probe Articulation
The borescope probe offers 2-way 180° articulation for precise navigation.
- Use the articulation control wheel or joystick on the handle to bend the probe tip in the desired direction.
- The probe can bend up to 180 degrees in two directions.
- To lock the probe angle for stable inspection, engage the locking mechanism (refer to the diagram below for location).

Figure 5.1: Probe Articulation Control

Figure 5.2: Detection Angle Locking
5.3. LED Brightness Adjustment
The 8 LED lights on the probe tip can be adjusted to suit various lighting conditions.
- Press the LED brightness button (often marked with a light bulb icon 💡) to cycle through the four available brightness levels (0%, 60%, 80%, 100%).
- Select the brightness level that provides the clearest image without glare.

Figure 5.3: Adjustable LED Brightness
5.4. Digital Zoom and Image Rotation
The 5-inch IPS screen supports digital zoom and image rotation.
- Zoom: Use the zoom buttons (often marked with +/- or a magnifying glass icon) to magnify the image up to 8 times (x2, x4, x8).
- Image Rotation: Press the rotation button (often marked with a circular arrow ↻) to rotate the image 180 degrees, which is useful when the probe is inverted.

Figure 5.4: 8X Digital Zoom and 180° Image Rotation
5.5. Photo and Video Recording
Capture still images and record videos directly to the Micro-SD card.
- Photo: Press the photo button (often marked with a camera icon 📸) to take a still image.
- Video: Press the video button (often marked with a video camera icon 📹) to start recording. Press it again to stop recording.
- The borescope also features a microphone and speaker for audio recording with videos.

Figure 5.5: Photo and Video Recording Functions
5.6. Data Transfer
Transfer captured photos and videos to a computer using the USB-C cable.
- Connect the borescope to your computer using the provided USB-C cable.
- The borescope should appear as a removable storage device on your computer.
- Navigate to the appropriate folder to access and transfer your files.

Figure 5.6: USB-C Data Transfer
6. Maintenance
6.1. Cleaning
- Probe: After each use, especially in dirty or oily environments, gently wipe the probe and camera lens with a soft, damp cloth. For stubborn residue, use a mild, non-abrasive cleaning solution. Ensure the probe is dry before storage.
- Main Unit & Screen: Wipe the main unit and screen with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials that could scratch the screen.
6.2. Battery Care
- Always use the provided USB-C cable for charging.
- Do not expose the battery to extreme temperatures.
- If the device will not be used for an extended period, charge the battery to approximately 50% before storing and recharge every 3-6 months to maintain battery health.
- The battery is removable and replaceable. If battery performance significantly degrades, contact Ralcam support for replacement options.
6.3. Storage
Store the borescope and its accessories in the provided carrying bag in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the probe is coiled loosely and not sharply bent to prevent damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Battery is depleted or not properly installed. | Charge the battery fully. Ensure the battery is correctly inserted. |
| No image on screen | Probe not connected securely. LED brightness too low. | Check probe connection. Increase LED brightness. |
| Poor image quality (blurry/dark) | Camera lens is dirty. Insufficient lighting. Incorrect focus/zoom. | Clean the camera lens. Adjust LED brightness. Adjust digital zoom. |
| Probe articulation not working | Articulation mechanism jammed or damaged. | Do not force articulation. Check for obstructions. If persistent, contact support. |
| Device shuts down unexpectedly | High temperature protection activated. Low battery. | Allow the device to cool down. Recharge the battery. |

Figure 7.1: High Temperature Protection
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | N505-R1.5M |
| Probe Diameter | 5.5mm (0.22 inches) |
| Screen Size | 5 inches IPS |
| Digital Zoom | Up to 8X |
| Articulation | 2-Way 180° |
| LED Lights | 8 adjustable LEDs (4 brightness levels) |
| Waterproof Rating | IP67 (probe only) |
| Battery Capacity | 4400mAh rechargeable (removable) |
| Working Time | Up to 4 hours |
| Memory Card | 32GB Micro-SD (included) |
| High Temperature Protection | Automatic shutdown at 90°C/194°F |
| Package Dimensions | 16.77 x 8.82 x 3.43 inches |
| Item Weight | 2.95 Pounds |
9. Warranty and Support
Ralcam products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Ralcam website. Please have your model number (N505-R1.5M) and purchase date available when contacting support.

