Model：HM-508
Material：Stainless steel
Unlock Method：Card,Key
Induction Time：<1S/ Less than 1 second
Card Frequency：125KHZ(T5557)/125 Khz(D801-57)
Battery：4 pCs AA Alkaline Batteries
Low-voltage Alarm：<4.8V/Support (Less than 4.8 V)
Quiescent Current：<20u A/Less than 20 uA
Ambient Temperature：-20°C~60°C