$39.99Home Alarm System，2.4G WiFi PIR Motion Sensor Alarm, Wireless DIY Smart Door/Window Alarm for Home Security with Phone APP Alert 3-Piece Kit（1Door Window Sensor），for House Apartment Office,BlackAmazon- SAVE $20.00$59.99$79.99Wireless Home Security Alarm System 3-Piece, 1 Smart Hub, 2 PIR Motion SensorThe Home Depot
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- SAVE $79.50$79.50$159.00GSM Smart Home Security Alarm Kit, Wireless WiFi Home Alarm System with Siren, PIR Motion Sensor, Remote Controls, Window/Door Sensor, Support SMS Push/APP Connection (21pcs kit)Amazon
- $199.99Alarm Wireless Security System, 5 Piece Kit (2nd Gen)The Home Depot
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- $129.73Wireless Alarm, Security System Kit - Echo Alexa compatibleThe Home Depot
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- $27.99Window Alarm System 4-Pack - Ultra-Loud 120dB Alarms with Advanced Vibration Sensors - Window Security Alarms for Glass Break Detection - Features Low Battery LED IndicatorAmazon
- $12.56Wireless Home Window & Door Security Alarm System Magnetic Sensor 90 Db Compact & Easily MountedEtsy
- $199.99and upRing Alarm 5-Piece Kit - home security system with 30-day free Ring Home subscriptionAmazon & 3 more
- $329.99Ring Alarm 14-Piece Kit - home security system with 30-day free Ring Home subscriptionAmazon
- $12.99TAODAN DC 12V Siren Horn Wired Outdoor Alarm Loud Horn Sound Siren for Home Alarm System Security and ProtectionAmazon
- $9.99WESUA 5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security SystemAmazon
- $249.99and upRing 8-Piece Alarm Home Security SystemOffice Depot & 2 more
- $109.99Clouree 433MHz Wireless Waterproof Siren Home Security Kit with PIR Motion Sensor,Door/Window Sensors,and Remote Control(8-Piece Alarm System)Amazon
- $28.59Siren, Outdoor Siren for Alarm System Acoustic-Optical Security Alarm(433MHZ)Amazon
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- $79.99Ring Retrofit Alarm Kit - existing wired security system and Ring Alarm required, professional installation recommendedAmazon
- SAVE $1.50$21.98$23.48MuNanshan 2 Pcs Perimeter Trip Alarm,Camp Trip Wire Alarm Device Use 209 Primers Early Warning Security System for CampingAmazon
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- $49.99Smart Hub M1S, Wireless Smart Home Bridge for Alarm System (2.4 GHz Wi-Fi Required), Remote Monitor and ControlThe Home Depot
- $53.71Smart Caregiver Economy Alarm System - TL2100EEA - 1 Each / EachAmazon
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- SAVE $20.00$29.95$49.95Smart Caregiver Wireless Motion Sensor Alarm System with Pager for Fall and Wandering Prevention | Mountable Motion Detector Alarm Alerts Medical Caregiver with Up to 300' Range | Bed or Door MovementAmazon
- $44.99Wi-Fi Wireless Smart Home Security Alarm System Strobe LED Flashing - DIY Easy Installation-90 DB-Smart Phone CompatibleThe Home Depot
- $404.87Alarm Lock Systems Inc. DL2700IC US26D Trilogy Digital Lock T2 Cylindrical Ic 26D, Satin ChromeAmazon
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- $24.99Nexete Smart Wi-Fi Motion Sensor Light Switch,Motion Detector PIR Infrared Motion for Alarm System & Smart Home Automation, Compatible with Alexa & Google Assistant (Sensor Switch 1-Pack)Amazon
- $17.99Wi-Fi Motion Sensor: Tuya Smart PIR Motion Detector with App Alerts, Battery Powered, Infrared Wireless Alarm System for Alarm System & Smart Home Automation (Wi-Fi Version)Amazon
- $299.99Alarm Pro Wireless Security System, 8 Piece Kit with Built-In Wifi Router (2nd Gen)The Home Depot
- SAVE $8.99$69.99$78.98Aqara Smart Hub M2 Plus Aqara Water Leak Sensors, Wireless Water Leak Detector for Alarm System and Smart Home AutomationAmazon
- $199.99Wired Retro Fit Alarm Kit for Home Wired Alarm SystemsThe Home Depot
- SAVE $10.00$49.99$59.99Aqara Smart Hub M2 (2.4 GHz Wi-Fi Required), Smart Home Bridge for Alarm System, IR Remote Control, Home Automation, Supports Alexa, Google Assistant, Apple HomeKit and IFTTTAmazon
- $16.99Wi-Fi Motion Sensor: Smart Motion Detector PIR Infrared Motion Sensor for Alarm System & Smart Home Automation, App Remote Monitoring, Compatible with Alexa (1-Pack)Amazon
- $22.9912V 7Ah Replacement Battery Compatible with Power Patrol Home Alarm System Back UpThe Home Depot
- $19.9912V 7Ah F2 Replacement Battery for Home ADT Security Alarm SystemThe Home Depot
- $49.9912V 9AH Replaces Home ADT Security Alarm System + 12V 1Amp ChargerThe Home Depot
- $24.9912V 9Ah SLA Battery Replacement for Home ADT Security Alarm SystemThe Home Depot
- $23.75Wireless Water Leak Flood Sensor for Net Connected Home Security Alarm & Home Automation SystemThe Home Depot
- $17.99ML5-12 - 12V 5AH Home Alarm Security System SLA BatteryThe Home Depot
- $19.21Wireless Window and Door Sensor for Net Connected Home Security Alarm & Home Automation SystemThe Home Depot
- $28.9912V 4.5Ah Home Alarm Security System SLA Battery - 2 PackThe Home Depot