Nascom's N1178c Shk Series Is A 3/4" Recessed Stubby Door Contact CoupleWith The Patented Sharktm Magnet. The Set Is Designed For Residential, Commercial And Industrial Steel And Wood Door Applications.The N1178c Shk Is The Installer's Choice Of Contact Configuration BecauseThe Contact Set Is Designed To Cut Installation Times .. Just A Pinch Of TheSprings Installs The Sharktm Magnet Permanently And The Powerful RareEarth Magnet Helps To Prevent False Alarms Caused By Shifting Or WarpingDoors.The N1178c Shk Series Is Designed For Installation In Every Type Of HingedDoor Including Wood Doors.FeaturesSnap Fit On Steel - No Glue RequiredEncapsulated Hermetically Sealed ContactsTime Saving InstallationNo Silicone Required, No Mess12" 22awg Wire LeadsPolypropylene Switch HousingWide Gap - N35 Ndfeb Rare Earth MagnetListed To Ul634 Standard
