Technical Parameters (Specifications) iFM420: Product series (biometric fingerprint reader) WR: Likely indicates weather-resistant / outdoor capable DU: Likely indicates dual verification capability (fingerprint + PIN) WQ: Likely indicates specific communication protocol or regional variant Fingerprint Specifications Sensor Type: Optical fingerprint sensor Sensor Resolution: 500 DPI (typical) Verification Speed: < 1 second (typical) Fingerprint Capacity: 3,000 - 10,000 templates (depending on model) False Acceptance Rate (FAR): < 0.001% False Rejection Rate (FRR): < 1% Template Size: < 500 bytes per fingerprint User Interface Display: 2.4-inch TFT color LCD (typical) Keypad: 12-key tactile keypad (0-9, *, #) Indicators: Multi-color LED status indicators Audio: Built-in buzzer for feedback Communication Ethernet: 10/100 Base-T (RJ45) with TCP/IP Serial: RS-232 / RS-485 (depending on variant) USB: USB Host (for data download) Wiegand: Wiegand input/output for access control integration Protocols: Modbus, TCP/IP, HTTP, DHCP Electrical Power Supply: 12...24 V DC Power Consumption: < 5 W (typical) Battery Backup: Optional (for real-time clock) Environmental Degree of Protection (IP): IP65 (weather-resistant front panel) Operating Temperature: -20...60 °C Storage Temperature: -30...70 °C Relative Humidity: 10...90% (non-condensing) Mechanical Mounting Mode: Wall mount (surface mount) Dimensions (W x H x D): Approximately 80 mm x 140 mm x 40 mm Net Weight: Approximately 0.3 kg Enclosure Material: ABS plastic with UV-resistant coating Certifications Standards: CE, FCC, RoHS Safety: Compliant with relevant electrical safety standards