Reviews Co2 Alarm Doorbell Chime

Wireless Door Chime,600Ft Range 5 Adjustable Volume 1 Magnetic Door open Contact Sensor with 62 Chimes Mute Mode Door Bell Plugin Receiver for Home/Office/Store STECHRO (Black)

  • ...y cover your ideal detection range when you use it on your house or store, it will alarm immediately when the chime sensor separate over 0.4inch, so notes that the door sensor chime should be installed within 0.4inch gab.
  • UP TO 62 RINGTONES CHOICE: it includes the pop songs in us, like” sugar”,” Billie Jean”,doorbell Dingdon ,Dog Barking etc., just chose your favorite one by the doorbell ring receiver,the led will flash when the music alarm, the ring volume has 5 levels to meet your needs at different time&places. smart memory: the door alarm receiver will keep the previous setting while plug in again.
  • 20 DOORCHIME SENSOR EXPANDABLE: either the receiver can be paired up to 20 chime sensors, or 1 door sensors can be paired up to 20 receivers.It is an adorable choice setting for the kids’ door, pets’ gate, roof window. (by adding new sensors, you can also pair different ringtone to each sensor, so that you can realize exactly which door is triggered).
  • EASY TO INSTALL: the doorbell chime kits have been paired before leaving the factory. just plug receive in an outlet, remove the sensor insulator, you can either use the double sides adhesive tape to stick or use the screw mounted to install on the door or window.
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Arlo Chime 2 - Built-in Siren, Audible Alerts, Customizable Melodies, Wi-Fi Connected, Compatible with Arlo Wired and Wireless Doorbell Camera, Security Camera, and Smart Home Devices (AC2001)

  • Stay connected - Receive instant audible notifications for a doorbell ring from your Arlo doorbell or motion alert from any of your Arlo surveillance cameras.
  • Deter unwanted guests - Use the 80 plus decibel smart siren to automatically sound when motion or audio is detected, or trigger it manually from the Arlo app to make the Chime 2 into a door alarm.
  • Customize alerts - Personalize the door chime by selecting from a variety of melodies, adjusting the volume, or setting the door chime into silent mode to stay notified the way you want.
  • Wire-free setup- Easily plugs into an outlet and connects directly to Wi-Fi to make your doorbell a smart doorbell. No base station required..
  • Complete your smart home - Compatible with Arlo Essential Video Doorbell Wire-Free (AVD2001), Video Doorbell Wired (AVD1001), Audio Doorbell (AAD1001), and all Arlo security cameras (excluding Go).
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Wireless Doorbell, SECRUI Door bell Over 1000ft Coverage with 2 Plug-In Receivers, 1 Waterproof Push button, 52 Chimes, 110dB loud Sound Colorful LED Flash

  • Doorbell for Large Homes: 1 push button simultaneously trigger 2 chime units. The range of wireless doorbells for home extends over 1000ft in open space. Great for large homes, apartments, offices & classrooms. You’ll never miss a chime!.
  • Multiple Optional Ringtone & Mute Mode: SECRUI wireless doorbell receiver features 58 chimes and 5 levels of adjustable volume(0 dB to 110 dB) to meet your needs for different occasions. LED flash is suitable for the elderly and hearing impaired. The indoor chime can remember your last melody and volume level after closing it.
  • No need to reset the previous settings, really saves your time..
  • Hassle-Free Installation: This battery wireless doorbell ringer requires no additional wires or tools, all you had to do was plug in the adapter to an outlet and adhere the transmitter to the wall via Double-sided tape or Screws-in. Each transmitter can be paired with up to 20 doorbell receivers..
  • Multifunctional Doorbell: The wireless doorbell can be installed on the front door of your apartment, house, villa, flat, office, or workshop to welcome your guests, it can also be used as a pager, which makes it suitable for children, nursery, or elderly care, and it also applies to teachers seeking helpful classroom organization and ma....
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Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Window Alarm Operate Range 600ft With 58 Chimes 5 Volume Level,3 Door Sensor+3 Plug-in Receiver

  • Wide Working Range: The wireless door chime offer up to 600 feet detection range. Far enough to cover every window and door in your house and store.....
  • 110dB Loud Audible Alarm: Wireless Door Open Sensor is loud enough to detects entry, prevent kids, babies or pets going out the house, protecting your....
  • Customized Alarm Chime: The chime choices include a doorbell, barking dog, siren and various snippets of well known songs. and 5 adjustable....
  • Easy Setup and Installation: The doorbell chime has already been paired out of box, simply plug in the receiver and choose the ringtones and volume....
  • 1 year quality service: Any problems about door open chime,pls contact with our customer service team to get a full refund or replacement..
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ChunHee Solar Driveway Alarm Wireless Long Range Weatherproof Outside Wireless Home Security System PIR Motion Sensor/Detector Alarm Siren Alert Protect Indoor/Outdoor Property IP65

  • ✔【4 WORKING MODES】 – ①24 hours – Sensor flash and perimeter alarm + wireless doorbell alert②At night 12 hours – Sensor flash and perimeter alarm + wireless doorbell alert ③24 hours – Sensor no flash and no alarm + wireless doorbell alert ④At night 12hours – Sensor no flash and no alarm + wireless doorbell alert. Working modes can switch by remote control or power button..
  • ✔【WORKING RANGE】 – The wireless driveway sensor alert alarm can detect any movement within 5-8 meter, 30° up and down & 70° left and right detection angle. The siren sound is 129db which can be heard from 200m away. The doorbell receiver’s wireless transmission range around 130ft/40m in open air. The remote control range is 100m(The distance will affected by obstacles and interference signals)..
  • ✔【SOLAR POWER ALARM】 – The PIR motion sensor alarm system is powered by a built-in rechargeable lithium-ion battery which will be charged by the solar panel, It can work day and night, even in cloudy and rainy days. IP65 weatherproof design enables the motion detector alarm to work perfectly outdoor..
  • ✔【FULLY EXPANDABLE ALARM SYSTEM】 – One remote control can be pair to multiple solar driveway sensor alarms,....
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Driveway Alarm Wireless Outside Weatherproof, Motion Sensor, Intruder Alarm, Long Range 600ft, Outdoor Weather Resistant Motion Detector (Batteries NOT Included)

  • [ Reliable & Expandable for Home Security ] 1800 ft long range tested in real-world settings with trees, buildings, walls, and vehicles for an accurate measure of wireless range. Weatherproof Motion sensors and doorbell—works well in rain or snow! Expandable to 8 units and extra receivers can be added to this wireless doorbell and driveway alarm system to improve your home security coefficient..
  • [ Enjoy Better Features ] Many common issues in other similar items have been optimized well in the doorbell chime and driveway sensor by our professional factory, includes the solar panel, adjustable sensitivity, ON/ Off button, low power indicator, rechargeable battery. The receiver also works as a clock and alarm with completely adjustable chimes! Customize your chimes, sounds, volumes, and more! NO Wifi, NO APP..
  • [ Easy to Use & Install ] Install this wireless outdoor motion alert and doorbell button in just a few minutes! Simply place your sensor(s) (expands up to 8) anywhere on your property, and get a customized in-home chime when the second a person, vehicle or large animal moves within 30 feet of your detection zone, or the person ring the bell! For m....
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SECRUI Doorbell–Doorbell Wireless Kits for Front Door – Battery Operated Doorbell with 52 Chimes, Flash Lights, 5 Volume Levels – Waterproof Modern Doorbell (2 Push Buttons 2 Receivers)

  • Doorbell for Large Homes: 2 push buttons simultaneously trigger 2 receivers. The range of wireless doorbells for home extends over 1000ft in open space. Great for large homes, apartments, offices & classrooms. You’ll never miss a chime!.
  • Multiple Optional Ringtone & Mute Mode: SECRUI wireless doorbell receiver features 58 chimes and 5 levels of adjustable volume(0 dB to 110 dB) to meet your needs for different occasions. LED flash is suitable for the elderly and hearing impaired. The indoor chime can remember your last melody and volume level after closing it.
  • No need to reset the previous settings, really saves your time..
  • Hassle-Free Installation: This battery wireless doorbell ringer requires no additional wires or tools, all you had to do was plug in the adapter to an outlet and adhere the transmitter to the wall via Double-sided tape or Screws-in. Each transmitter can be paired with up to 20 doorbell receivers..
  • Multifunctional Doorbell: The wireless doorbell can be installed on the front door of your apartment, house, villa, flat, office, or workshop to welcome your guests, it can also be used as a pager, which makes it suitable for children, nursery, or elderly care, and it also applies to teachers seeking helpful classroom organization and man....
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Door Chime, Wireless Door Window Contact Sensor Alarm, 500ft Range 32 Chimes 5 Volume Level LED Indicators, 1 Plug-in Receiver Door Sensor for Business/Home/Store (1 Receiver +1 Sensor)

  • ...elderly and the hearing impaired. Different ringtones are set for different doors so you can know which door you have a visitor to come in. Our door alert can remember your last melody and volume level after a power outage, no need to reset to your previous settings..
  • [500ft Wide Detection Range & 20 Expandable] The doorbell chime kit can reach out up to 500 feet wide enough range where it is open area. And it is expandable up to 20 ones, either the receiver can be paired up to 20 chime sensors, or 1 door sensors can be paired up to 20 receivers. You can install them in your dining room, bedroom, living room, garage, yard, or your store and office..
  • [Easy to Install] The doorbell chime kits have been paired before leaving the factory. Just plug the receiver in an outlet, remove the sensor insulator, you can either use the double-sided adhesive tapes to stick or use the screws mount on to the door or window..
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Door Chime, PHYSEN Wireless Door Open Sensor Window Alarm with 600 FT Range 58 Melodies & 5 Volume Levels with Mute Mode, Bright LED Indicator, Door Alert Kit for Business/Home/Office/Stores

  • 58 MELODIES & 5 VOLUME: Doorbell features 58 chimes and 5 levels adjustable volume(0 dB to 110 dB) to meet your needs for different occasions. LED indicators of the doorbell chime are suitable for the elderly and hearing impaired. Remembers your last melody and volume level after a power outage.
  • no need to reset to your previous settings..
  • 150 M/600 FT OPEN AREA RANGE: Door chime signal can easily cross through doors or walls, ensures you will never miss a visitor, even if you are a few rooms away or on another floor. Note: The battery level will affect the signal receiving range. It is recommended to change it once every 12 months..
  • EXPANSION SYSTEM: Door/window door sensor will detect every entry and send alarm warning to the doorbell chime receiver to better protect your place. You will hear the door bell chime to remind you when someone opening your door/window or your pet coming home. Each door sensor or receiver can be expandable for business, home, apartment, classroom, office, basement and more..
  • EASY TO INSTALL: Plug the wireless doorbell into socket, tear off the tape behind door sensor chime then paste on the....
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Solar Wireless Driveway Alarm with Extra Doorbell Part, Multifunctional Wireless Home Security System, Rechargeable Battery/Weatherproof/Mute Mode/Clock and Alarm (1 Receiver 2 Sensors 1 Doorbell)

  • [ Reliable & Expandable for Home Security ] 1600 ft long range (1760 ft.
  • 536m) tested in real-world settings with trees, buildings, walls, and vehicles for an accurate measure of wireless range. Weatherproof Motion sensors and doorbell—works well in rain or snow! Expandable to 8 units and extra receivers can be added to this wireless doorbell and driveway alarm system to improve your home security coefficient..
  • [ Enjoy Better Features ] Many common issues in other similar items have been optimized well in the doorbell chime and driveway sensor by our professional factory, includes the solar panel, adjustable sensitivity, ON/ Off button, low power indicator, rechargeable battery. The receiver also works as a clock and alarm with completely adjustable chimes! Customize your chimes, sounds, volumes, and more! NO Wifi, NO APP..
  • [ Easy to Use & Install ] Install this wireless outdoor motion alert and doorbell button in just a few minutes! Simply place your sensor(s) (expands up to 8) anywhere on your property, and get a customized in-home chime when the second a person, vehicle or large animal moves within 30 feet of your detection zone, or the person ring the bell! For more information, please read the included instructions and Quick Start Guide car....
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