Sauna lock for cabinet single card and dual card unpack ... can plate out all sorts of colors,beatiful,solid,durable in use.² Full-automatic switch-box, without rotating handle,convenient, ... ,with a low voltage alarm function.² Can also use utility power to supply power.² Acousto-optic indicative operation ... :18*17.5*4.2 cmSauna lock for cabinets sample available For more infor ,please just fell free to ...