About this itemName: Automatic flushing sensor Power delivery method: DC Main material: ABS Sensing distance: 20CM Sensing time: 1 seconds Water time: five seconds Power supply method: battery (not including battery) Note: 1 the bathroom tank cover. 2 the diameter of the drain valve. three can only be installed if the diameter of the drain valve is between 63-70mm Smart SensorAutomatic flushingBeautiful life, starting type the liberation of either handsApplicable several scenariosWhether the following scenes trouble you, it may be easily solved with itMultiple sensing methodsSelect diverse sensing positions in line along with your needsInfrared Intelligent Sensor FlushingFree your hands, say see you later to bacteria, and give 3M adhesiveAI Automatic Induction FlushingComfortable and Convenient, Strong Performance, Sensitive TransmissionSensing distance 20cmAutomatic water discharge after 1 secondHand Feeling IntegrationSupport induction button flushing, does not impression the use of the original buttonEasy and easy installationOpen the lavatory tank, the battery and flush presser preserve on the tankToilet Tank Universal StyleInstalled anyplace you need it, for you to smoothly visit the toiletProduct AnalysisBattery Box: 4 AA battery (not included)Sensor: 2 AAA battery (not included)Free 3M constant adhesive