With double cylinder, double reader; remote control function;Working way: magnetic induction Door Lock for apartment Description12V Lock With double cylinder, double reader remote control function Working way: magnetic induction PackgeConverters Size:6.3*4.0*2.5CM Color Box Size :14.5*11.0*7.5CM Carton Box Size :CM G.W:KGS Electronic Door Lock for apartment,villa,home,office,building