Inquiry (采购产品): M 500 Dear, We have the M500 infra-red spectrophotometer . There are much noise in the band. Can you tell us why. Can we buy it's detector? How much does it cost? Our company are in VIETNAM.Please tell us soon. Best regard **** Hidden Message ***** Nhan toai VNM Company: Imexpharm pharmaceutical E-mail: kythuatimex@yahoo.com **** Hidden Message ***** kythuatimex@yahoo.com