Best Battery Back Up Siren

RISCO Group RK-700PRP IrexPlus Request to Exit PIR Motion Sensor with Internal Buzzer and Relay Timer

  • Motion sensor detection. Alarm will sound 30 seconds after motion is detected if PIN code is not entered..
  • Easy set up. Wire-free for easy installation. Can be wall mounted or used free standing..
  • Loud siren. 130dB siren loud enough to alert you when motion is detected..
  • 4-digit PIN code. Set your own 4-digit PIN code, suit for Garage and Shed use..
  • Battery operated. Requires 4 x AA batteries (not included).Low battery indicator. Red light warns you when batteries are running low.Shed and garage alarm can be connected to a power supply. Requires 4.5V..
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D-Link Wi-Fi Water Leak Sensor and Alarm, App Notifications, Battery Powered, No Hub Required (DCH-S161-US)

  • Battery powered: 2 AA batteries can last up to 1 and a half years.
  • The water sensor sends you a notification when it's time for a change.
  • Sensor probe: Designed to be sensitive, detecting shallow leaks to give you an early warning.
  • 90dB siren: The water sensor is equipped with a loud siren and triggers a localized alarm to alert you of a leak.
  • Water leak detection alerts: Notifications are sent to your mobile device through the midline app to let you know of a leak, wherever you may be.
  • Easy setup: Works with your WiFi at home.
  • Smart home compatible: Supports IFTTT so you can customize additional actions between the water sensor and other smart devices in your home.
  • Sleep mode: Saves power by limiting connectivity between the Siren and the my link app only when leaks are detected or the siren's button is tapped.
  • Rated for 120 Volt with a maximum power load upto 15 amps and 1800 watts.
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Tenergy Multifunctional Hand Crank Weather Radio with LED Flashlights SOS Alarm Cell Phone Charger AM/FM/NOAA Radio Frequencies Ideal for Emergencies

  • Plan for unforeseen emergencies - Tenergy's multifunctional NOAA weather radio is a must-have tool during disasters such as power outages, hurricanes,....
  • Multiple ways to power - recharge the built-in 2000mAh battery by generating energy with the hand crank or solar panel, or through other power sources....
  • Emergency flash lights and siren - illuminate the dark with the two LED flash lights that can shine up to 120 lumens, or use the SOS light and siren....
  • Backup battery bank - the built-in li-ion battery in this weather alert radio can double as a renewable power source for cell phones and electronics....
  • Tested and certified by CE, PSE, Rohs, and includes Tenergy's 1 year warranty and lifetime support with local support based in California..
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BEMLDY Mini Portable Megaphone Bullhorn with Siren, Voice Recorder and Adjustable Volume. Handheld Mic,Ideal for Fans Cheering of Football, Soccer, Baseball, Hockey, Basketball (Black)

  • NEW IMPROVED DESIGN POWER AMPLIFIER & RANGE: The UZI-MP-PRO 50-Watt Megaphone with Siren offers a range of approx. 500m (1,600 ft), works as an airhorn.
  • GREAT FOR OUTDOOR ACTIVITIES: Ideal for Football, Baseball, Hockey, Cheerleading Fans & Coaches, Referees, Safety Drills, Camping, Boating, schools, Siren for safety calls and getting everybody's attention.
  • FEATURES: Adjustable volume and recording/playback, Internal Memory Record (16 seconds), detachable microphone, repeat play back, led indicator, shoulder strap.
  • BATTERIES & WEIGHT: Rechargeable Battery included with Foldable Prongs to plug into the outlet to charge.
  • also accepts 8 "C" batteries (not included) - The weight of the megaphone increases when (8) C batteries are used instead of the rechargeable battery..
  • COMPATIBILITY: USB, SD Card & AUX Jack for Playback, 110V.
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eufy Security, Entry Sensor, Detects Opened and Closed Doors or Windows, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor-use Only, Requires HomeBase, Optional 24/7 Protection Service

  • 2-year Battery Life: One battery provides 800 days of monitoring..
  • For Doors And Windows: Compact and versatile design fits onto any door or window frame. Requires eufy Security HomeBase..
  • 100-decibel Siren: Enable or disable siren protection, which triggers a 100-decibel siren on HomeBase, and sends an alert to your smartphone when forced entry is detected..
  • Optional 24/7 Protection Service: New optional 24/7 professional monitoring service is now available for 24/7 emergency police, fire and medical response when your alarm system is triggered..
  • What's Included: Entry Sensor, CR123A Battery, Magnet, 3 x Mounting Screws, Owner's Manual, Happy Card..
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Fuers Standalone Home Office & Shop Security Alarm System Kit,Wireless Indoor Strobe Flashing Siren with Remote Key Fob and Door Contact Sensor

  • ①Main function: This is a simple standalone reliable strobe siren alarm system kit without gsm, landline, app control and wifi function, only send....
  • ②Easy operation: Programmed ready before shipment, it is used after receiving, please remove insulating sheet inside door sensors, adjust angle of....
  • ③Power mode: Built in Ni-Hi rechargeable battery 3.7V/600mAh,home seucrity siren can work about 8 hours in case of power failure. It is more....
  • ④Extra features: 1. home siren system can work as a host to add accessories, up to 50pcs sensors and 30pcs remote controls supportable, you can DIY....
  • ⑤Customer Service: 12-month warranty, professional technical support and friendly responsive customer service within 24 hours. If you have any....
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Wireless Home Security Camera Outdoor WiFi with Light Night Vision Rechargeable Battery AI Motion Detection, Surveillance Wireless Camera Outdoor,1080

  • ...ubscription or SD card】Lifetime free cloud service storage. You could have 7-days playback or up to 1 GB storage for each acount. You no need to buy SD card. But this wireless security camera still come with SD card slot. You could have choice to save video in TF card, up to 128G(not included)..
  • 【 Large Capacity Battery & 100% Wire free】Outdoor security camera with battery,equip with large capacity 6000mAh battery, which can be used for 5-7 months (based on different environment) after being fully charged. 100% Wire-free, no need power cord, no need LAN cable, hassle-free. Download the app, scan QR code, done, supper easy to pair camera to your home 2.4Ghz Wi-Fi network (not support 5Ghz)..
  • 【Instant Alerts &Siren & Flashlight】 Home security camera. When a suspicious character outside your home, you want to act immediately. Don’t worry, this smart camera do it for you. Automatic t urn on siren and flash spotlight instant. The best way to scare off any intruder. And you also get an instant alert on your phone with a photo preview right in the notification without opening the the App. And you can see what is happening. Or you could manual open siren and spotlight..
  • 【Two-Way Audio & Weather proof & Multi user】 360°noise-canceling hypersensi....
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Spartan Defense Personal Safety Alarm Keychain for Women, Men, Kids, Elderly - SOS LED Strobe Light - Air Travel/TSA Friendly - Emergency Scream Safe Key Chain Device, Pocket Size - 1 Unit

  • ATTACKERS HATE ATTENTION. This military grade personal alarm for women emits an ear-piercing sound up to 130db & a blinding LED strobe light that disorient & scare off attacker. Highly advised to keep a hold on it, carry it in hand when walking to your car, jogging, or when going out at night in case anything or anyone will come up to you.
  • When activated, the deafening sound and high-intensity light creates diversion, gets attention, and helps you flee in times of emergencies. This self defense siren’s pull-pin feature makes it easy to use. The alarm can be heard from thousand feet away.
  • The slick, modern, lightweight, reusable, battery changeable, and easy to use design makes it a must have personal safety alarm for women. It is small and feisty self defense siren.
  • This personal alarm comes with a carabiner that serves as a keychain. For easy access, the self defense siren can be attached to your belt loop, bags, keychains, the strap of your shirt etc. Be alert and ready at all times.
  • Spartan Defense Sirens are individually tested to meet the highest quality standards. A great gift to give to your loved ones. A personal alarm that gives peace of mind knowing you have a siren device that is great for everyday safety.
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The Original Self Defense Siren Personal Safety Alarm for Women, Men, Kids, Elderly - SOS LED Strobe Light - Air Travel/TSA Friendly - Emergency Safe Key Chain Device, Pocket Size - 2 Units

  • ...fening sound and high-intensity light creates diversion, gets attention, and helps you flee in times of emergencies. This self defense siren’s pull-pin feature makes it easy to use. The alarm can be heard from thousand feet away.
  • The slick, modern, lightweight, reusable, battery changeable, and easy to use design makes it a must have personal safety alarm for women. It is small and feisty self defense siren.
  • This personal alarm comes with a carabiner that serves as a keychain. For easy access, the self defense siren can be attached to your belt loop, bags, keychains, the strap of your shirt etc. Be alert and ready at all times.
  • Spartan Defense Sirens are individually tested to meet the highest quality standards. A great gift to give to your loved ones. A personal alarm that gives peace of mind knowing you have a siren device that is great for everyday safety.
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