#CAPTION# #CAPTION-Mobile# #DOWNLOADTYPE# Download #DownloadDropDown# #file-path# #caption# Home / Safety Technology International, Inc. / Fire Products Safety Technology International, Inc. -Heated Type 4X Polycarbonate Enclosure - Thumb Lock - STI-7521-HTRDOWNLOADS Clear polycarbonate cover helps protect against vandalism and damage Designed to maintain temperature above freezing Operates on 12, 16.5 or 24 volts and has three thermostats Exterior thumb lock Type 4XCategory: alarm controls | electrical controls | electrical enclosures...MasterFormat: Instrumentation and Control for Electrical Systems | Electrical Controls and Relays | Electrical Cabinets and Enclosures...View Product Details From Manufacturer Safety Technology International, Inc.2306 Airport Rd.Waterford, MI 48327 Tel: (248) 673-9898 Fax: (248) 673-1246sales@sti-usa.comhttps://www.sti-usa.com/Find a rep/distributorRequest More Info DOWNLOADS Related Products Overview Heated Type 4X Polycarbonate Enclosure - Thumb Lock - STI-7521-HTR Clear polycarbonate cover helps protect against vandalism and damage Designed to maintain temperature above freezing Operates on 12, 16.5 or 24 volts and has three thermostats Exterior thumb lock Type 4X Mounting hardware and gasket included8.09 in H x 10.06 in W x 3.25 in D See More See Less Downloads