The item available here is a new old stock Banner photoelectric sensor.  It comes as shown in new condition in the original packaging.  There are multiples initially available (see last picture).

This item has not been tested, and comes with a 30 day return policy from the date the item was shipped. Postage is not covered.

Here's the specs:

Model: SM2A31RL

Part No: 26061

Items will be paid for immediately and will be shipped using USPS.