ST400 is designed for elegant main entrance solution for factory, office building, school and gym etc. The ST400 with transparent acrylic barrier and LED light on the cabinet show great fashional style when installed on the site. It is also water-proof, can works outdoor. Because of the modular design, the device is easy to install and maintain.High quality and solid stainless steel cabinet , water-proof，High quality IR sensor, works fine outdoor in sunshine.