Dahua · DHI-ASR2100H
The Dahua DHI-ASR2100H is a highly reliable, slim-style proximity card reader designed for secure access control in both indoor and outdoor environments. Its compact, vertically-oriented design makes it particularly suitable for space-constrained installations like door frames. Key Features Weatherproof Construction: Built with a PC and ABS plastic housing and an IP66 rating, making it dustproof and waterproof for outdoor use. Dual Communication: Supports both RS-485 and Wiegand 34 (Wiegand 26 customizable) for flexible connection to a wide range of door controllers. Built-in System Stability: Includes a watchdog timer that monitors the device and performs automatic recoveries if abnormal behavior is detected. Security Alarms: Equipped with an anti-sabotage tamper alarm that alerts the system if the device is removed from the wall. User Feedback: Integrated multi-color indicator light and an audible buzzer provide clear prompts for authorized or unauthorized access. Port Protection: All connection ports feature built-in overcurrent and overvoltage protection to prevent damage from el