Met One Instruments Aerocet 531 Mass Monitor/Particle Counter 157033363812 6 II SKU 19-75284 Ref

6 II SKU 19-75284 Ref 23-108094

Manufacturer Weller Model Number WESD51 SKU 19-27295 Ref 23-103683

Manufacturer Thermo Scientific Model Number REB1204A SKU 19-75036 Ref 23-107625

the unit has some carved writing on it

Manufacturer Parker Model Number 4/150-19-BX SKU 19-81031 Ref 23-116618

Met One Instruments Aerocet 531 Mass Monitor/Particle Counter 157033363812 6 II SKU 19-75284 RefCondition Used Description This item is fully tested and in excellent working order. Item will come with a 30 Day Warranty. Cosmetically in good condition showing minor scuffs scratches blemishes from previous use. Includes Monitor Particle Counter as pictured. No Probe, additional items or accessories are included. Unless pictured, no power adapter power cable included. Photos are of the actual unit for sale. Inventory is on hand and ready to ship.