FEATURES AND FUNCTIONS WATER SAVING: It performs two-sections flush,each average water consumption is 2-4 L for 10 seconds, 3-4 L above 10 seconds.(Based on water pressure of 0.3-0.6Mpa) HYGIENIC: The whole rinsing process is done by the flusher itself cleanly and efficiently. The "hand-free"feature is convenient and hygienic which can keep you from bacteria infection. INTELLIGENT: The control unit is super-minisized and its action is controlled by a micro-computer. It can self-adjust the detection zone according to working environment.It has been set with the function of anti-light and anti-ultraviolet rays to avoid leakage caused by the light and ultraviolet rays. LOW POWER CONSUMPTION: For DC flushers, 4AA alkaline batteries can be used for 2-3 years at 100 cycles a day. (AC/DC Power are available for your option) CHARACTER OF INSTALLATION: With the conceal-designed flusher, and there are water regulating valve and solenoid valve inside, regulation and cleaning can be easily done even by laypeople.(Expose-Designed is convenient for replacing the manual flushing value) TRAP SEAL PROTECTION: If not used it will flush automatically every 24 hours to avoid the odor returning once the trap dries. SUITABLE PLACES:With functions of decoration,it is suitable for ordinary place.