ELEPOWSTAR Motion Detector Alarm: 500ft Wireless Doorbell for Home Security System, Shops, Offices, Factories Review

【RESPONSIVE & WIDE WIRELESS RANGE】 The motion sensor alarm detects movements from a surprisingly wide area with a working area up to 150 meters between the receiver and motion sensor, ideal for security and small children, ideal for use in the backyard by the pool. In addition, you can use it for various purposes such as your business. This saves time and helps you a lot in your daily life. 【HIGH PERFORMANCE & 2-in-1 DOORBELL】 Not only serves as a motion sensor detection alarm, but also as a wireless doorbell to remind visitors to come. With 58 different carillons and 5 adjustable volume levels for a volume range from 0 to 110 dB, you can set it wherever you need it. Great ring tones for the deaf and hard of hearing. 【SUPER EASY TO INSTALL & USE】 The sensor mounts and operates on two AAA batteries (included) and the receiver plugs plugged into a standard socket. Our security sensor for the doorbell motion detector detects movements between 5 m and 110 degrees, an activation that the recipient must alert. So easy to install to any position you want. 【EXPANDABLE WIRELESS HOME SECURITY】 Flexible design according to your actual requirements. You can choose the number of transmitters and receivers as you wish, which can be freely coordinated with one another. Each recipient of this motion sensor detection alarm can work with a maximum of 20 motion sensors. 【LIFETIME TECHNICAL SUPPORT】 Return policy in 30 days / 24-hour reply / 2-year money back / replacement for any product defect and customer dissatisfaction via seller. If you have any questions, email us with your order number and questions.