KR503E : 125KHz Proximity card reader
KR503M : 13.56MHz Mifare card reader
Read Range : KR503E - Up to 10CM , KR503M - Up to 5CM
Reading Time (Card) : 300ms
Power / CurrentDC : 6-14V / Max.70mA
Communication : RS485
Input Port : 2ea (External LED Control, External Buzzer Control)
LED Indicator : 2 Color LED Indicators(Red and Green)
Beeper : Yes
Operating Temperature : -20 C to +65C
Operating Humidity : 10% to 90% relative humidity non-condensing
Color : Black
Dimension(W x H x T) : 116 x 75 x 17.3mm