Name:NK-Z2L-EM mini embedded RFID reader Purpose:ACS reader Operation frequency:125 KHz Card types:EM-ID Reader range:3~375px Output Format:idate (1--26 Visual indication:1 x Red LED Anti-vandal case Waterproof and dustproo:Yes Material:Poliamd (High temperature resistant, fire prevention) Dimensions:D26 x 22mm