In what versions are ascenders available?

Ascenders are available in two primary designs: handled and non-handled. Handled ascenders typically provide a grip for the user, allowing for better control and ease of use when climbing or ascending, particularly in vertical situations where a secure hold is beneficial. Non-handled ascenders, on the other hand, do not have a handhold and rely on the climbing system's characteristics for usage, which might be preferable in specific applications or when space is limited.

Understanding these two categories is essential in confined space rescue operations, as the type of ascender used can greatly affect safety and efficiency during a rescue. Handled ascenders can make it easier to navigate complex environments, while non-handled options might be used for simplicity or weight-saving purposes.

Other versions such as manual and automatic, fixed and adjustable, or single and double refer to different characteristics or functionalities of ascenders, but they don’t categorize the primary types of ascenders as accurately as handled and non-handled. This makes the correct answer vital for those needing to understand equipment options while preparing for situations requiring ascenders in confined space rescues.