Check the listing for details. Promac Model DHT-830S Calibration Unit With accessary in Case. Condition: Used. Listed at 549.99 USD. Promac Model DHT-830S Calibration Unit With accessary in CaseUsed. Working . Excellent Condition like the picture. (Please check image)Come with all unit in pictureFree return in 30day if error or not workingWhat You Exactly What You Get ! No more. Please check image before buy itOnly ship in USA and some country have Global Shipping ProgramIf you have a PO, APO, FPO or DPO box, Honolulu, PR, Alaska, Hawaii, ... address. Please deal fee shipping with me before buy itPlease remember to leave us Positive feedback if you are happy with this transaction. If you are not happy with this transaction for any reason, please contact us first before leaving Negative feedback & we will do our best to rectify the situation! If you have any questions please feel free to email us and ask,we will try to help you the best we can. Thanks for watching !