QR Code Access Control Converter: SMRDM-228 Support Standards: ISO/IEC14443-A/B, ISO 7816 Support cards: Mifare 1K S50/4K S70/Ultralight, Mifare Pro, FM1208, Sony felica, SAM card Induction distance: 0~100mm Power Supply: 7~24VDC Maximum Current: 500mA Cassette use times：100,000 times Relative Humidity: 30%~95% Operating Temperature: -20℃~+70℃ Antenna size: 104X67mm or 120X120mm Size: 104x67x32mm Weight: <300g