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Doorbell design with 36 ringtones and 5 welcomes doorbell rings for personal preferences. 4 levels volume adjustableLoud High Middle Low from 11325dB.Welcome, alarm, doorbell and night light mode, 5 in 1 automatic door chime. With 4 colors LED light, Color Red Blue Green can distinguish multiple entrances by different light colors.The transmission range is up to 280m918ft and detection range approximately 28m 6.626ft to effectively keep you alerted.Please note that this not waterproof.Keep it away from rains or cover adequately.just place the sensor at the entrance to your driveway and the receiver inside your home.Place the receiver indoor and put the sensor at other places, such as door entrance, home mailbox, driveway, walking paths, apartment, office, hotel, store, and many other indoor places.Receiver is selfadhesive installation, the detector is wall mounted. Use batteries or micro USB power supply. Before using, please read the manual carefully and put in batteries not included, adjust the sensors angle to avoid false alarming. MORE DETAILS antennalocation Driveway asin B07Q3THVBB batterydescription Alkaline bestsellersrank 114,407 in Tools Home Improvement See Top 100 in Tools Home Improvement 119 in Door Bells Chimes brand Waytronic color White compatibledevices Security Systems, Lighting Controls, Smart Home Hubs customerreviews 4.4 4.4 out of 5 stars 625 4.4 out of 5 stars itemdimensionsdxwxh 1.38D x 2.76W x 4.53H manufacturer Waytronic maximumrange 280 meters modelnumber DB2SF21R mountingtype Wall Mount numberofbatteries 1 Lithium Polymer batteries required. included numberofitems 3 operatingtemperature 70 C powersource Battery Powered temperaturerange 6E1 C upc 763231584441 uppertemperaturerating 60 C
