Stechro Door Chime, Wireless Door Open Contact Sensor Alarm with 600ft Range, 62 Chimes 5 Adjustable Volumes for Business/Home/Office/Stores (2 Receivers+3Sensors)

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About This [600ft Wide Detection Range] The doorbell chime kits can cover up to 600 feet wide enough range where it is open area so that you can install them in your dining room, b edroom, living room, garage or yard, or your store or office, etc. [Up to 62 Ringtones & Smart Memory]: 62 ringtones including alarm sound and other pop songs for your choice, such as “sugar”, “Billie Jean” and “the box”, just select the one you like best from the doorbell ring receiver and the LED indicator will also flash when the door bell chime alarm. With the smart memory, the door alarm receiver keeps the previous setting for your further use and you don’t need to set it every time. [Easy to install]: the doorbell chime kits have been paired before leaving the factory. just plug receive in an outlet, remove the sensor insulator, you can either use the double sides adhesive tape to stick or use the screw mounted to install on the door or window. [Up to 20 Expandable] : either the receiver can be paired up to 20 chime sensors, or 1 door sensors can be paired up to 20 receivers.it is an adorable choice setting for the kids’ door, pets’ gate, roof window. (by adding new sensors, you can also pair different ringtone to each sensor, so that you can realize exactly which door is been triggered) [Over 1-Year Quality Assurance]: items we offer 12 months replacements service, any defective parts just contact us for free replacements and we provide 30 days money back,24 hours customer service to reach your 100% satisfaction. Overview Color : Black Brand : STECHRO Power Source : Battery Powered Product Dimensions : 4.41"L x 2.68"W x 5.44"H Battery Description : 23A 12V 52mAh Show more