This Ebay item is used equipment.  Model 591 AM module is in good condition as shown in photos.  There is no visible damage to knobs or switches and no bent connections.

CHP Consultants dba CHP Surplus est. 2002 chpconsultants.com

•  We offer 30-day return policy on our inventory.  If you are not satisfied with an item, please contact us so we can work out a solution to your satisfaction.
•  Due to the variety of the items, we sell through our store, we are only able to thoroughly test our items labeled as “Radiation Detectors”. 
•  We are happy to answer further questions on any item if we can. Please do not hesitate to message us if more information is needed. We are easy to reach during regular business hours. Monday through Friday 9-3.
• We take pain staking efforts to pack all items quickly and properly for safe shipping.
• We can consolidate shipping.  If you place more than one order and wish to consolidate, simply message us prior to shipping and we can reduce shipping costs.
•  Local pick up is available Oak Ridge, TN.

Internal Use
Barcode: 15307133, 15307122

We stand behind our eBay store. Check out CHPSurplus here for
various miscellaneous equipment at a low price.