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Best Security System Sensor

Guardline 500 Foot Long Range Driveway Wireless Alarm [1 Sensor] - Outdoor Weather Resistant Motion Sensor & Detector-Security Alert System - Monitor & Protect Outside Property

  • Compatible: Extra sensor is only compatible with the 500 ft Guardline driveway motion sensor alarm system. This sensor runs at 915 MHz. Please make sure you are purchasing the same frequency as your existing set..
  • Security: The wireless driveway alarm system is sensitive to both heat and motion, during the day or at night, and constructed to be weatherproof. Regardless of conditions you will always be able to rely on it and feel a sense of safety..
  • Easy To Install: Can easily be added to your existing Guardline home security system. There is no need to disrupt your existing system. Simply add the extra sensor. Installation Tip: Do not point perimeter alarm sensor toward sun..
  • Customizable: Regardless of the size of your home and property, you can customize the wireless alarm system with a motion sensor add on for greater peace of mind. Add up to 16 sensors. Note: 500 ft model is not compatible with 1/4 mile model..
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Sensky BS010W DC 12v to 30v PIR Motion Activated Sensor Switch DIY LED Lighting ( Delay Time, Sensor Distance Adjustable )

  • ...on Detector】-This outdoor motion sensor has 4 "TWO": TWO modes(doorbell mode or alarm mode).
  • TWO power supply methods(AAA batteries or USB charging).
  • TWO alarm signals(sound & red light). It is these 4 "TWO" that makes our motion sensor stand out in the market..
  • 【Enhance Your Home Security】-Small equipment, powerful functions! Approximately 16-26ft infrared detection range, max 125dB siren. This complete stand-alone motion sensor based alarm system will well protect your Shed, Kitchen, Room, Boat, Garages, etc. Choosing our security alarm, provide security for your family and property..
  • 【Easy to Install & DIY】-This indoor wireless alarm system is fully-expandable, you can use one remote to control several pir sensors. And it is very easy to install. We intimately provide you with two screws and a film sticker. You can choose the installation method according to your preferences..
  • 【Professional Worry-Free Warranty】-Our motion sensor alarm can provide security for your family and property. You will enjoy our professional return and exchange warranty from the day you receive the home security alarm. STECHRO guards your family!.
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Newborn Conspiracy (Five-Alarm Babies Book 4)

  • Security - Feel a sense of safety around your home with our weatherproof perimeter alarm set. It's sensitive to heat and motion during the day and at night, making it an alert system you can count on..
  • Easy to Install - No need to call in an expensive technician for this home security system. Our outdoor motion sensor alarm is a plug-and-play device that installs in minutes..
  • Long Range - With 4 motion sensors and 1 receiver, each driveway sensor also has a wireless range of up to 1/4 mile for plenty of coverage around your property..
  • Compatibility - This motion detector alarm unit runs at 915 MHz. If you are expanding your Guardline wireless alarm system, please make sure you are purchasing the same frequency as your existing set..
  • Customizable - Regardless of the size of your home and property, you can configure this system of motion detectors with a motion alarm sensor add on, or extra receivers for greater peace of mind..
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Ideal Security Sliding Patio Door Security Bar and Contact Alarm Bundle, White

  • Bring Your Security to Another Level: Add an additional level of safety to your home security system with our contact sensor alarm unit and sliding door security bar.
  • Sliding Door Blocker: Made of aluminum, this security bar easily slides from 25.75 to 47.5 inches and can be installed either on the inside or outside the track without cutting.
  • it allows the window or door to partially open while being secured.
  • Contact Sensor: The door contact sensor has a built-in alarm that emits an instant 90 dB sound for 30 seconds when door has been opened.
  • Simple Installation: Wall mount the battery-operated contact sensor with included double-sided tape.
  • Once installed, turn switch on to detect when door opens.
  • Security bar mounts in middle of door for easy opening.
  • Safe and Convenient Design: Our sliding door blocker features a childproof anti-lift lock and acts as a visual deterrent against burglars who can see it through the door.
  • The contact sensor alarm is ideal for areas where children should not go.
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DENFOON WiFi Home Security System Kit 8-Piece (2.4GHz), with 2 Remote Control, 5 Door Window Sensors, 1 Motion Detector Alarm Host, Compatible with Alexa and Google Assistant

  • 【8-piece WiFi home security system kit 】The package includes 1 motion detector alarm host , 5 door alarm sensor, 2 remote control. The motion detector alarm host connects with 2.4GHz WiFi Router and the door alarm sensor connects with the motion detector alarm host..
  • 【Work with Alexa & Google Assistant】 Our home security system is compatible with Alexa and Google Assistant, very convenient to use..
  • 【Real Time Alerts】When the door or window are opened or unexpected motion is detected, the alarm host will make a sound up to 110dB and send a notification to your phone by tuya app, giving you a lot of peace of mind when you aren't home..
  • 【DIY Home Security System 】There are armed, disarmed and home modes that you can choose, also you can change detailed settings according to your needs by app,such as delay the alarm, name the alarm sensor.
  • you can control the system by remote controller too..
  • 【With PIR】The host can work as a motion detector with PIR. What’s more, the area of the detector is cylindrical, will effectively decrease the false positive rate..
  • 【 No subscription Fees】Denfoon home security system is one-time purchased, no more other monthly fees needed, saving you money..
  • 【Backup Battery and Low Battery Alert】The motion d....
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DENFOON WiFi Home Security System Kit 5-Piece (2.4GHz), with 2 Remote Control, 2 Door Window Sensors, 1 Motion Detector Alarm Host, Compatible with Alexa and Google Assistant

  • 【5-piece WiFi home security system kit 】The package includes 1 motion detector alarm host , 2 door alarm sensor, 2 remote control. The motion detector alarm host connects with 2.4GHz WiFi Router and the door alarm sensor connects with the motion detector alarm host. WiFi range 260ft without obstacles..
  • 【Work with Alexa & Google Assistant】 Our home security system is compatible with Alexa and Google Assistant, very convenient to use..
  • 【Real Time Alerts】When the door or window are opened or unexpected motion is detected, the alarm host will make a sound up to 110dB and send a notification to your phone by tuya app, giving you a lot of peace of mind when you aren't home..
  • 【DIY Home Security System 】There are armed, disarmed and home modes that you can choose, also you can change detailed settings according to your needs by app,such as delay the alarm, name the alarm sensor.
  • you can control the system by remote controller too..
  • 【With PIR】The host can work as a motion detector with PIR. What’s more, the area of the detector is cylindrical, will effectively decrease the false positive rate..
  • 【 No subscription Fees】Denfoon home security system is one-time purchased, no more other monthly fees needed, saving you money..
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Onvis 4-in-1 Bluetooth Wireless Door Window Contact Sensor for Alarm System and Smart Home Automation With Integrated 120dB Alarm Siren,Thermometer, Hygrometer, Only Works With Apple HomeKit

  • 【120dB Loud Door Alarm Sensor For Kids Safety】 4 security system modes: STAY, AWAY, NIGHT and OFF. Delay arming allows arming after your entry or exit. Powerful alarm ringtone up to 120 dB can be adjusted(can be disabled). Minimum alarm time makes sure the alarm continues for some time even when switched off immediately. It's beeping can remind you if your kids opened windows or you forget to close the door..
  • 【Door Alarms For Home Security System】No redundant notifications in iOS 14.Instantaneous notifications will be sent to your iOS devices upon changes of the security system status or the door/window contact sensor. No hub required. Pleasant chime of the sensor make it obvious anytime someone goes through the gate. Trigger data are locally encrypted before sending to iCloud..
  • 【Multipurpose Door Sensor】Send ambient temperature and humidity readings to your Apple HomeKit Devices. Or you can simply ask Siri how the weather is.Onvis is HomeKit certified and keeps everything in Apple’s iCloud system..
  • 【HomeKit Automation & Scenes】Set up automations with other HomeKit enabled accessories on the basis of on/off status of door/window,temperature and humidity. For instance, have the Homepod mini alert 'your mailbox has been open' when the po....
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Proximity Alarms

  • ✔ Wide Range of Uses - Motion detection is an essential part of any home security solution. The waterproof sensors in this system use Passive Infrared to detect heat and movement so you can quickly be alerted to movement on your driveway, front porch, gate, shed, walkway, or even swimming pool (for when kids get too close). Great for homes, businesses, and offices..
  • ✔ Long Distance Wireless - Communication range up to 1000ft/300M from each sensor to the receiver. Cars, people and animals can be detected within 24ft/8M of each sensor’s angled eye. Think of this system as your long-range doorbell..
  • ✔ 3 Alert Options & 36 Chimes to Choose From - Select one of 3 ways of being alerted (Sound/LED Flash/Sound and LED Flash) and 3 volume levels from 25-80dB. Also select from 36 chimes and doorbell sounds. Be alerted to visitors, scare off unwanted intruders, or even know when your children have accessed restricted areas..
  • ✔ Easy to Install & Diy - This system is fully-expandable, with plug-and-play sensors that can be set up within minutes. Pair each receiver with up to 5 sensors for full coverage of your property. The sensors can be mounted to walls, fence posts, trees, or any other surface, providing extra layers of security and home safet....
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Guardline 1/4 Mile Range Wireless Driveway Alarm [1 Motion Detector Alarm Sensor & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

  • Security - Feel a sense of safety around your home with our weatherproof perimeter alarm set. It's sensitive to heat and motion during the day and at night, making it an alert system you can count on..
  • Easy to Install - No need to call in an expensive technician for this home security system. Our outdoor motion sensor alarm is a plug-and-play device that installs in minutes..
  • Long Range - With 1 motion sensor and 1 receiver, each driveway sensor also has a wireless range of up to 1/4 mile for plenty of coverage around your property..
  • Compatibility - This motion detector alarm unit runs at 915 MHz. If you are expanding your Guardline wireless alarm system, please make sure you are purchasing the same frequency as your existing set..
  • Customizable - Regardless of the size of your home and property, you can configure this system of motion detectors with a motion alarm sensor add on, or extra receivers for greater peace of mind..
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Guardline 500 Foot Range Wireless Driveway Alarm [1 Motion Detector Alarm Sensor & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

  • Security - Feel a sense of safety around your home with our weatherproof perimeter alarm set. It's sensitive to heat and motion during the day and at night, making it an alert system you can count on..
  • Easy To Install: Ordinarily, the installation of the equipment by a technician is the most costly part of a home security system, but this set is easy to install and you won’t have to worry about anyone else knowing about it. Installation Tip: Do not point sensor toward sun..
  • Long Range - With 1 motion sensor and 1 receiver, each driveway sensor also has a wireless range of up to 500 feet for plenty of coverage around your property..
  • Compatibility - This motion detector alarm unit runs at 915 MHz. If you are expanding your Guardline wireless alarm system, please make sure you are purchasing the same frequency as your existing set..
  • Customizable - Regardless of the size of your home and property, you can configure this system of motion detectors with a motion alarm sensor add on, or extra receivers for greater peace of mind..
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CR2450 3V Lithium Button Cell Battery for Dive Computer,Flameless Candles Thermometer(10pc/2cards)

  • Application:welding hood，truck key，security sensor，wireless thermometers.sensor,alarm system sensors,garage door remote,Learning Watch,Flameless Candles,tealight candles, Clocks, Watches, Calculators, Dive Computer，Car Key Remote，Security System.
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Arlo Home Security System - Wired Keypad Sensor Hub, (5) 8-in-1 Sensors, Yard Sign, 24/7 Professional Monitoring- No Contract Required, DIY Installation, Alarm System for Home Security - SS1501

  • Easy DIY Install: The plug-in Keypad Sensor Hub and wire-free Sensors make installation a breeze, so you can do it yourself.​.
  • Convenience with an All-in-One Sensor: 8 detection functions in 1 compact design gives you flexibility to get notified when motion, open/close, water leak and freeze, smoke/CO alarm detection, tilt and ambient light change events happen in your home.​.
  • Control Your System: 6-in-1 Hub with built-in siren, motion, smoke/CO alarm detection lets you control, pair devices, set security system to arm, arm home, or standby. One Tap Emergency Response buttons send fire, police, or medical responders to your home.¹.
  • Longer Range and More Secure Connection: Get superior, Wi-Fi security, connectivity, and more range for devices paired with the Arlo Home Security System and SecureLink.​.
  • Personalize Your Home Security: Customize your home alarm system, how your Sensors protect your home, and select your favorite security widgets for your dashboard, in one single app.​.
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SimpliSafe Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System

  • Entry sensor - Protect your doors, windows, cabinets and more..
  • Compact design - Fits on almost any window, door or cabinet..
  • Instant chime alerts - When the magnet moves more than two inches away from the sensor, you'll hear a chime alert or the alarm will sound if the security system is in an armed state..
  • Customizable alerts by sensor - Can set up Secret Alerts that won't sound the alarm but will send a discreet notification directly to your phone..
  • Simple set up - Peel and stick installation or can permanently mount with included hardware..
  • Long-lasting battery - pre-installed battery.
  • Compatible with the SimpliSafe Gen 3 home security system.
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