Product Name: Dual-frequency access control reader; Operating Frequency: 125Khz , 13.56Mhz; Sensing distance: 0-15CM; Operating voltage: DC5-16V; Operating Current: Static Less than 30mA;Dynamic Less than 40mA; Communication format: Wiegand26/34, UART TTL; Working humidity: 10%~90%; Baud rate: 9600.8.1; Working temperature: -30~85; Ways of identifying: Swipe card Card reading types: IC card, supports S50, S70 and their compatible cards, M1 card, ID card, EM4100 card etc.(does not support HID, Cobra, APCiK, etc.)IC card, supports S50, S70 and their compatible cards, M1 card, ID card, EM4100 card etc.(does not support HID, Cobra, APCiK, etc.) Installation precautions: from the card reader to the controller: It is recommended to use an 8-core shielded multi-strand twisted pair network cable (two of which are spare, if the card reader light feedback legal card is not required, the LED cable can not be connected, if the buzzer of the card reader is not used) The Buzzer line can not be connected to the illegal card feedback from the device), and the data lines Data1 and Data0 are a pair of twisted pairs. The wire diameter is recommended to be more than 0.3 square millimeters. The can not exceed 100 meters. The shield wire is connected to the GND of the controller. The card reader is installed on a metal . Since the card reader is a radio frequency product, the metal pair near the front or the rear absorb its radio frequency signal. If the metal is large, it even affect the card reader. card, or the reading distance is very attenuated. The distance between the two card also affect the card reader, some shorten the card reading distance, and some cause the two card to read the card at the same time or the card reader cannot read the card. Solution: Try not to install it on a metal plane, or dig out the metal part with the back of the card reader installed, and keep the distance between the two card more than 25cm. Color: As Shown Material: plastic Package Contents: 1 * Dual Frequency Access Control Card Reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.