... .Fully automatic /4*1.5V 2.ABS/1000ML 3.Compatible: battery/Ac adaptor 4.Anti- dripping Automatic Soap and Disinfectants ... chip is more energy-saving, environmental protection, economic use of the cost.* More user-friendly design ---- easy to install ... reminders, red light flashes expressed the need for replacement of liquid soapParticularly applicable to airports, terminals, convention centers, hotels ...