Eltra is a company known for manufacturing encoders and other motion control and automation products. However, I don’t have specific details about the models or types of encoders they offer. Encoders, in general, are devices used to convert mechanical motion into electrical signals, providing information about position, speed, and direction.

Here are some general characteristics and features you might find in Eltra encoders:
Incremental and Absolute Encoders:
Eltra likely offers both incremental and absolute encoders. Incremental encoders provide pulses for each increment of movement, while absolute encoders provide a unique binary or gray code for each position.

Various Technologies:
Eltra may use various encoder technologies, including optical and magnetic, depending on the application requirements.

Resolution:
Encoders typically have a specified resolution, indicating the number of pulses or bits per revolution. Higher resolution allows for more accurate position or speed measurements.

Compact and Robust Design:
Encoders from Eltra are likely designed to be compact and robust, suitable for use in industrial environments.

Shaft Types:
Depending on the application, Eltra encoders may be available with different shaft types, including solid shaft or hollow shaft options.

Communication Interfaces:
Some Eltra encoders may support various communication interfaces, such as RS-422, Push-Pull, or others, allowing integration with different control systems.

Customization Options:
Manufacturers like Eltra often provide customization options to meet specific customer requirements, including special resolutions or mechanical configurations.