Met One Instruments Aerocet 531 Mass Monitor/Particle Counter 157033363812 Manufacturer Sonim Model Number XP1520-A-R5

Manufacturer Sonim Model Number XP1520-A-R5 SKU 19-61139 Ref 23-107991

6 II SKU 19-75284 Ref 23-108094

Manufacturer Staco Model Number Type 2510 SKU 19-62491 Ref 23-88926

the unit has some carved writing on it

Manufacturer Cole Palmer Model Number 8528-20 SKU 19-41789 Ref 23-55764

Met One Instruments Aerocet 531 Mass Monitor/Particle Counter 157033363812 Manufacturer Sonim Model Number XP1520-A-R5Condition 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.