Check the listing for details. PBI Dansensor OXI-3.1 Portable Oxygen Indicator Working Surplus. Condition: Used. Listed at 1509.20 USD. PBI Dansensor OXI-3.1 Portable Oxygen Indicator Working Surplus Inventory # A-18493 Part No: OXI-3.1 CE Marked Made in Denmark This PBI Dansensor OXI-3.1 Portable Oxygen Indicator is used working surplus. The physical condition is good, but there are signs of previous use and handling. Sale Details Item Condition: Used Working, 90 Day Warranty Estimated Packed Shipping Dimensions: L x W x H = 14"x14"x14" @ 17 lbs. Only items pictured are included: If a part is not pictured, or mentioned above, then it is not included in the sale. Pictured test equipment is not included or available for sale. For items with multiple quantities: The pictured item is not necessarily the one that will be sent. Serial numbers or country of manufacture may vary. Items are sold with a 90-Day Satisfaction Guarantee Lister 31