The Texas Instruments PS-2400+ Data Bank Scheduler & Calculator is a vintage handheld device from 1985 that has been tested and is in working condition. 

With a regular-sized display and key size, this data bank calculator is powered by batteries and offers reliable performance for office and business tasks. 

The Texas Instruments brand is known for its quality and durability, making this vintage calculator a valuable addition to any collection or for everyday use in a retro office setting.

Tested.

Very good condition.