Inquiry (采购产品): negative room pressure Can you send information on an inexpensive guage system for verification of negative room pressure? I am looking for a guage that can be mounted on an outside wall with hardware/equipment to go thru the wall into negative pressure treatment room in a small ER application. **** Hidden Message ***** Kent Shelton 84032 Company: Heber Valley Medical Ctr. E-mail: kent.shelton@imail.org **** Hidden Message ***** kent.shelton@imail.org