Ralcam H-4

Ralcam Two-Way Articulating Borescope Inspection Camera User Manual

Model: H-4

Introduction

The Ralcam Two-Way Articulating Borescope Inspection Camera is a professional tool designed for detailed visual inspection in hard-to-reach areas. Featuring a 180-degree two-way articulating probe, a 4.3-inch HD display, and adjustable LED lighting, it is ideal for automotive, industrial, and home inspection tasks. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your borescope.

Safety Information

Please read all safety warnings and instructions before using this product to prevent electric shock, fire, or serious injury.

  • Do not expose the device to extreme temperatures. The intelligent high temperature protection feature will automatically power off the unit if the temperature exceeds 95°C to prevent damage.
  • Ensure the probe is clean and free of debris before and after use.
  • The probe is IP67 waterproof and oil-proof, but the main display unit is not. Avoid submerging the display unit in liquids.
  • Do not attempt to disassemble or modify the device. Repairs should only be performed by authorized personnel.
  • Keep the device away from strong magnetic fields.
  • Store the borescope in its protective case when not in use to prevent damage.
Borescope display showing a high temperature warning icon

Figure 1: Intelligent High Temperature Protection warning on the display.

Package Contents

Verify that all items are present in the package:

  • Ralcam Two-Way Articulating Borescope (Main Unit with Display)
  • 8.5mm Lens-3.3FT Flexible Cable Probe
  • USB-C Charging/Data Transfer Cable
  • Protective Carrying Case
  • User Manual (this document)
Ralcam Two-Way Articulating Borescope, flexible cable, and protective case

Figure 2: Complete package contents including the borescope, flexible probe, and carrying case.

Product Overview

Components

  • Display Unit: 4.3-inch HD IPS screen for clear viewing of inspection footage. Features control buttons for navigation, settings, and capture.
  • Articulating Probe: 8.5mm diameter, 3.3FT (1 meter) flexible cable with a tungsten braid for durability. Features 180-degree two-way articulation controlled by a wheel.
  • Camera Lens: 2.0MP camera with 4X zoom capability.
  • LED Lights: 6 adjustable LED lights at the probe tip for illumination in dark environments.
  • Handle: Ergonomic handle with the articulation control wheel.
  • Battery: Built-in 2600mAh rechargeable Lithium Polymer battery.
Close-up of the borescope's 4.3-inch IPS display

Figure 3: The vivid 4.3-inch IPS display provides excellent clarity and color reproduction.

Image showing the detachable screen of the borescope

Figure 4: The screen unit can be detached for easier handling or replacement.

Setup

Charging the Battery

Before first use, fully charge the borescope's internal battery. A full charge provides up to 4 hours of continuous operation.

  1. Locate the USB-C charging port on the device.
  2. Connect the provided USB-C cable to the borescope and a compatible USB power adapter (not included) or a computer USB port.
  3. The charging indicator light will illuminate. Once fully charged, the light may change color or turn off depending on the model.
Diagram showing the internal 2600mAh rechargeable battery of the borescope

Figure 5: The borescope is equipped with a 2600mAh rechargeable battery.

Borescope connected to a laptop via USB-C cable for charging and data transfer

Figure 6: Use the USB-C cable for charging and transferring data to a PC.

Operating Instructions

Power On/Off

Press and hold the power button (usually located near the display) for a few seconds to turn the device on or off.

Probe Articulation

The borescope features a 180-degree two-way articulating probe, allowing the camera tip to bend and rotate for optimal viewing angles.

  • Use the red wheel control on the handle to articulate the probe tip.
  • Rotate the wheel in one direction to bend the tip up to 180 degrees in that direction.
  • Rotate the wheel in the opposite direction to bend the tip up to 180 degrees in the other direction.
  • The flexible cable (3.3FT) provides a good balance of flexibility and rigidity for navigating tight spaces.
Borescope probe bending at an angle with the 180-degree wheel control highlighted

Figure 7: The 180-degree wheel control allows precise articulation of the probe tip.

Adjusting LED Brightness

The 6 LED lights at the tip of the probe provide illumination in dark inspection areas. Their brightness can be adjusted.

  • Locate the light adjustment button on the display unit.
  • Press the button repeatedly to cycle through different brightness levels (e.g., 0%, 60%, 80%, 100%).
Borescope probe tip with adjustable LED lights illuminating a dark space

Figure 8: High brightness LEDs provide clear visibility in dark environments.

Diagram showing the borescope camera lens and 6 LED lights with adjustable brightness levels

Figure 9: The 6 LED lights offer 4 adjustable brightness settings for optimal viewing.

Capturing Photos and Videos

The borescope supports capturing high-definition photos and videos (1920x1080P).

  • To take a photo, press the photo capture button (usually marked with a camera icon).
  • To start video recording, press the video recording button (usually marked with a video camera icon). Press again to stop recording.
  • Captured media is stored internally. Connect the device to a computer via USB-C cable to transfer files.

Maintenance

Cleaning

  • After each use, especially in dirty or oily environments, wipe the probe and lens with a soft, damp cloth.
  • The probe is IP67 waterproof and oil-proof, allowing for easy cleaning of the probe tip.
  • Do not use abrasive cleaners or solvents on any part of the device.
  • Ensure the display unit is kept dry and clean.
Borescope probe submerged in water and oil, demonstrating IP67 waterproof and oil-proof capabilities

Figure 10: The probe's IP67 waterproof and oil-proof rating ensures durability in challenging environments.

Storage

  • Store the borescope and its accessories in the provided protective carrying case.
  • Keep the device in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Ensure the probe cable is not sharply bent or kinked during storage to maintain its integrity and articulation lifespan (rated for 20,000 bends).
Diagram showing the tightly-knit tungsten wire mesh of the borescope probe and its bend lifespan

Figure 11: The tungsten braid enhances flexibility and durability, with a bend lifespan of 20,000 cycles.

Troubleshooting

ProblemPossible CauseSolution
Device does not power on.Low battery.Charge the battery fully.
No image on screen.Probe not properly connected; device in standby mode.Ensure probe is securely connected. Press any button to wake from standby.
Image is blurry or dark.Lens is dirty; insufficient lighting.Clean the camera lens. Adjust LED brightness.
Probe articulation is stiff or not working.Cable kinked or damaged; debris in articulation mechanism.Ensure cable is not kinked. Clean the articulation point. If problem persists, contact support.
Device shuts down unexpectedly.Overheating protection activated.Allow the device to cool down. Avoid using in environments exceeding 95°C.

Specifications

FeatureDetail
Model NameH408B (Item model number: H-4)
BrandRalcam
Display Screen4.3 Inches HD IPS
Camera Lens Diameter8.5mm / 0.33 inch
Cable Length3.3FT (1 meter) Flexible Cable
Articulation180° Two-Way Articulating
Video Capture Resolution1920 x 1080P (1080P)
LED Lights6 adjustable LED lights
Zoom4X Digital Zoom
Battery2600mAh Lithium Polymer (up to 4 hours continuous use)
Water Resistance LevelIP67 (Probe only)
Connectivity TechnologyUSB-C
Temperature ProtectionAutomatic power-off at >95°C
Product Dimensions10 x 3 x 27 cm; 1.72 kg
Country of OriginChina

Warranty and Support

Ralcam products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official Ralcam website.

Typically, products purchased on Amazon.ca have a 30-day return/replacement policy through the seller. For specific warranty details beyond this period, please contact Ralcam directly.

Manufacturer: Ralcam

Place of Business: Ralcam Company

Seller on Amazon.ca: Ralcam (Seller ID: A1OHE8NKS021YA)

© 2025 Ralcam. All rights reserved.

This manual is subject to change without notice.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.