The unit was stored for a period of time, as i checked the battery compartment was a bit rusty i put batteries but didn’t turn on, so needs some attention or buying a battery pack, the lens is clear but starting a sign of fungus, all other mechanism working fine I suppose.
eBay
Used NE-20S Digital Theodolite. Includes Plumb Bob, Rain Cover and case. Good condition. Light wear.
eBay