Use these kits with the Seagull for variable angle ATR spectroscopy. The ATR Kits comes with a removable ZnSe or Ge ATR crystal, crystal holder and pressure plates. They are excellent for measurements at higher incident angles than provided by most ATR accessories and also for depth profiling measurements. These are compatible with our Torque Screwdriver for reproducible pressure application. Si, Ge and ZnSe replacement ATR crystals are available.