What Is an Articulating Borescope and How Does It Work?

When you need to inspect hard-to-reach areas like the inside of an engine block or behind a wall or maybe down a pipe, then there’s no tool quite as effective as a borescope. But not all borescopes are created equal, some have more advanced features than others. And if you need something more accurate with greater navigation control, and a clearer view in tight spaces, then an articulating borescope is a game changer. This post covers the basics of a borescope.

Disclosure: As an Amazon Associate, we earn from qualifying purchases made through links on this site. Read full disclosure.

A Quick History

The earliest borescopes were rigid tubes used for inspecting parts that couldn’t be viewed directly, especially in aviation and engineering. These early models were limited in both movement and image quality. But as technology advanced, flexible scopes were introduced. But the real innovation came with articulating tips, allowing users to steer the camera once inside a cavity. This allowed for more detailed inspections and fewer disassembles of engines, plumbing systems etc.

What Is a Borescope?

An articulating borescope is a type of inspection camera that features a camera tip which can be manually or electronically maneuvered. The articulation usually occurs in one, two or four directions, allowing users to control where the lens is pointing without physically rotating the entire cable. This feature makes it invaluable in industries like automotive diagnostics, aircraft maintenance, HVAC, and plumbing (basic). See more about this in our best pipe inspection cameras for homeowners post.

Unlike fixed-tip models, an articulating borescope can turn around corners, adjust angles inside complex systems, and revisit specific spots with accuracy. A 4 way articulating borescope can move up, down, left and right, while a two way moves up and down (or left and right).

How It Works

The borescope typically consists of a flexible insertion tube with a small probe camera at the end, along with a set of LED lights for visibility in dark areas. The articulation feature is either joystick-controlled (on the handle or base unit), mechanically operated via knobs, buttons or manual. Users view the live feed on a screen that is built into the device or connected to a smartphone or tablet via a USB and app (or Wi Fi).

As the cable is inserted into a cavity, the tip can be tilted in specific directions to capture more detailed visuals. Some models allow full 360-degree movement using a 4-way articulation system. Others have a 2-way system, which moves up and down or left and right.

Once inside, the device captures real-time video or still images, often with the ability to adjust brightness, zoom, and angle. This setup helps professionals detect cracks, corrosion, foreign object damage, or blockages with minimal disassembly.

Types of Articulating Borescopes

There are two common types:

• Mobile-compatible articulating borescopes: These connect via Wi-Fi or USB and apps to smartphones and tablets. They’re ideal for fieldwork and DIY jobs, offering portability and easy sharing of images.
• Standalone borescopes: These come with built-in screens and are more robust. They’re preferred in professional settings where durability, battery life, and screen size are important.

Both types allow users to store recordings and images for documentation or later review. You could also divide types of borescopes through the features they have, such as rigid cables or semi rigid etc.

Conclusion

A non-articulating borescope may show you what’s straight ahead, but one with tip control shows you everything else. If you’ve ever wondered what is an articulating borescope and whether it’s worth the investment, the answer is clear – it’s a great tool for inspection work. There are various models and brands to pick from, such as Vividia borescopes & Teslong borescopes.