Product Name: Motion Sensors, Motion Sensors Sound Module, Memo Box (S-2019D) Model NO.: S-2019D Application: Home, Industry, Special Equipment, Car/Motorcycle, Traffic Installation Mode: Customizable Type: Sensor Size: 40x30X22mm: Distance Sensor: 2-3meters Trademark: AST Transport Package: Carton Specification: CE; Origin: China Product Description S-2019D Motion SensorsSize:40x30X22MMDistanceSensor:2-3metersMemoryfunctionwhenpoweroffButtoncellscanbereplacedWhichisperfectforpointofSaleDisplays,whichwithanaudiblemessagewillhelpyoutoraiseattentionandcreatimpact.WhichalsocanbeusedbyStoreasdoorkeeper,messageboxandsoon.AST Industry Co., Ltd is one the leading and professional manufacture for the Electronic products, Promotional gift and so on. There are Voice Recorder, Sound module for greeting cards, Sound Chip, Musical Module, Voice Module, Video Module, Video Brochure, Voice Chip, Motion Sensor Talking Box, Musical Bottle opener, Recordable wine opener, LED Flashing Module, LED Flashing Light, Light Module, Wireless Doorbell, Recording Plush&Stuffed Toys, Recording greeting cards/Postcards/Gift Bag ect. In our manufacture activities.OEM and ODM is Welcome, too.