http://alarm.com/ ADC-AC-ET10 Mullion Reader

The http://alarm.com/ ADC-AC-ET10 Mullion Reader is a slim-form factor, multi-technology access control reader designed to seamlessly fit narrow door frames (mullions). Engineered for modern credentialing, it supports traditional 125 kHz proximity badges, advanced MIFARE DESFire EV1 & EV2 smart credentials (13.56 MHz), NFC, and Bluetooth Low Energy (BLE), including mobile access credentials via smartphones. Fully OSDP-compliant, it offers secure channel communication, auto-detect configuration, and remote firmware updates. Featuring a tri-state LED light strip (red, amber, green) and an audible beeper, it provides intuitive feedback and enhanced security with accelerometer-based tamper detection. Rated for both indoor and outdoor use, this reader withstands extreme temperatures—from -31 °F to 151 °F—and features rugged, IP55-rated housing, making it an ideal solution for modern commercial environments demanding both convenience and cybersecurity.