... . time recorder 4. RFID time recorder time recorder Identification Mode: EM(ID) card Identification Speed: Less than 0.2 sec Identification ... Distance: 2.5-15cm (EM) Storage Capacity: 60MB Ide Flash Disk, support SD card with ... , off work, out, back, overwork, off overwork WEDS-H6 GPRS EM card Time Recorder and time clock