Heat Detector, Rate Compensation, Finish Silver, Surface Mounting, Depth (In. ) 1, Height (In. ) 4-1/4, Length (In. ) 1, Ambient Temp. Limits (F) -40 to 150 Degrees, Coverage (Square-Ft. ) 1600, Standards UL, CSFM. This item has been restricted from sale in the following state (s): []