Phoenix Precision/Virtis JM-5000 Aerosol Photometer 134156136594 but it has a password

but it has a password and we are not able to reset

Manufacturer AirTrol Model Number R-920

Manufacturer NEC Model Number QB-64GB-YQ-01T SKU 19-60223 Ref 23-84564

this unit is covered in black tape

Manufacturer Middle Atlantic Model Number RM-KB UPC 656747027116 SKU 19-12000 Ref 23-97603

Phoenix Precision/Virtis JM-5000 Aerosol Photometer 134156136594 but it has a passwordCondition Used Description Unit has been tested onsite and is guaranteed fully functional. Unit is in fair condition and has heavy wear from previous use including blemishes, scuffs and scratches. Includes unit only. Photos of actual item for sale. Unit is on hand and ready to ship. Please feel free to message us any question you may have. Thank you for checking out our listing. Specifics Manufacturer Phoenix Precision Virtis Model Number JM 5000 SKU