Fast Shipping On All Items 30 Days Money Guarantee Customer Support Excellent Service 100% Satisfaction Satisfaction Guaranteed We ship to US territories and worldwide. Please contact us if you have any special shipping instructions. Wifi Door Alarm System, Wireless DIY Smart Home Security System, with Phone APP Alert, 8 Pieces-Kit (Alarm Siren, Door Window Sensor, Remote), Work with Alexa, for House, Apartment, by Tolviviov Specification Item model number DP-W2 Style Grey 8 Power Source Battery Powered Battery Cell Composition Lithium Country of Origin China Batteries Included? Yes Unit Count 8.0 Count Batteries Required? Yes Product Dimensions 9.06 x 6.69 x 1.97 inches Installation Type Self-Adhesive Alert Type Audio Motion Manufacturer Daping Item Package Quantity 1 Item dimensions L x W x H 9.06 x 6.69 x 1.97 inches Control Method App, Remote, Voice Connector Type USB Type C Item Weight 1.1 pounds Connectivity Technology Wireless Part Number w2 Color Grey-8pack Sensor Technology Motion Sensor Wattage 5 watts Compatible Devices Smartphone Maximum Range 100 Meters Batteries 1 CR2 batteries required. (included) Voltage 5 Volts Recommended Uses For Product Home Security, Motion Detection Included Components 1 base station, 5 door sensors, 2 remote control Brand tolviviov Size 8 Piece Kit 6.69 inches x 9.06 inches x 1.97 inches. Weight: 1.1 lb Item Description ALPHA WIRELESS SECURITY SYSTEM: A smart way to protect your house with tolviviov Smart Home Security System. 8-piece kit includes the 1 alarm siren station, 5 windows door sensors and 2 remote controls. No contracts and No subscription fee. SMART ALARM SYSTEM for Home: tolviviov Alarm Security System is an affordable solution for your apartment security. You have full control over the door alarms for home security through your smartphone and get instant notifications of alarms alert in your house or apartment. CUSTOMIZATION: You can add extra door and window sensors, motion detectors, wireless doorbell, and water detectors to different rooms in your home security systems;It supports expansion of up to 20 sensors and 5 remote controls/keypads, which can be added to the WiFi alarm station. DIY INSTALLATION: Easily set up tolviviov Wireless Home Security System in minutes without tools. The wireless connection devices does not damage the wall. The alarm station should ALWAYS CONNECT to AC adapter. The backup battery works for 8 hours, only as an emergency battery. VOICE CONTROL and WIFI Network: Your tolviviov Home Alarm System can be easily controlled by Away, Disarm, and Home modes with your voice. Works with Alexa and Google Assistant. WIFI connection, Only works on 2.4GHz WiFi network, does NOT support 5GHz WiFi networks. Product Description Alarm kit Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 3,649 4.3 out of 5 stars 302 3.7 out of 5 stars 191 4.2 out of 5 stars 3,649 4.2 out of 5 stars 3,649 4.2 out of 5 stars 3,649 4.3 out of 5 stars 358 Price $54.99$54.99 $139.99$139.99 ? ? $59.99$59.99 $84.99$84.99 ? Compatible with tolviviov ? New ? New ? ? ? No Monthly Fee ? ? ? ? ? ? ? DIY Installation ? ? ? ? ? ? ? Expandable ? ? ? ? ? ? ? Works on 2.4GHz WiFi network ? ? ? ? ? ? ? Alarm Accessories Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 11 3.0 out of 5 stars 5 4.5 out of 5 stars 140 4.3 out of 5 stars 306 4.1 out of 5 stars 89 4.2 out of 5 stars 56 4.6 out of 5 stars 88 Price $42.99$42.99 ? $54.79$54.79 $14.79$14.79 $29.99$29.99 $9.99$9.99 ? Package include 1 Outdoor Siren 1 Smart Sensor 6 Door Sensor 1 Motion Sensor 1 Keypad 1 Remote Control 2 Water Sensor Compatible with tolviviov New New ? ? ? ? ? Dimensions 9.06 x 5.12 x 3.15 inches 2.76x1.97x0.79 inches 2.56in x 0.96in x 0.57in 4.33in x 2.36in x 1.97in 5.31in x 3.54in x 0.66in 2.56in x 1.18in x 0.78in 4in*1.5in*1in Power / ?3 AAA batteries 1 AA batteries 2 AA batteries 3 AAA batteries CR2016 batteries 2*AAA Battery life / Approximately 2 year Approximately 7 months Approximately 7 months Approximately 2 year Approximately 1 year Approximately 1 year SHIPPING . We ship to US territories and worldwide. Please contact us if you have any special shipping instructions. Return Policy ? We guarantee against any defective or misrepresented products. The original shipping label must be sent back to us to validate the return. A full refund can only be issued during the first 30 days upon receipt of the product. ? Returns will be voided if the product is mishandled or physical damaged by customer. ? Buyer will be responsible for all kind of return shipping/shipment to the seller for resolving the problem. ? Returns made for all non-defective, undamaged products are subject to a 15% restocking fee. Shipping and handling fees are absolutely non-refundable. If an item is returned to us due to an address issue, we do charge a reshipping fee to reship. If you would like a refund, there will be a 15% restocking fee applied. ? All returned products need to be assigned an RMA # (Return Merchandise Authorization #) prior to return. Please contact us through's messaging system to obtain an RMA# for the return. Any returned product without an RMA # on package will not be accepted or processed. ? Please contact us before returning. Feedback ? We appreciate your feedback and our system will automatically leave feedback for you after bid ends. ? Please contact us through message center if you have any problems, we will always try our best for 100% customer satisfaction. Payment Options Shop With Confidence