With an elegant and robust design, they are easy to connect and install, and offer the possibility to control one door from both sides. The LED lights indicate allowed or denied access. They have a proximity reading range of up to 10cm in the E series case and up to 5cm in the M series case. The fact that this series is waterproof, and the operating temperatures can range from -20º to +65º, it is the ideal solution for outdoor installation. Also they can be connected with our C3 controllers.