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Ring Alarm Contact Sensor (2nd Gen) – 2-pack

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Table of Contents

1 What is the best alarm contact sensor to buy?
2 Best Alarm Contact Sensor Reviews
3 Offers and Discounts
4 Cheap Alarm Contact Sensor
5 Buy Alarm Contact Sensor Online
6 Best Alarm Contact Sensor 2022

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What is the best alarm contact sensor to buy?

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Best Alarm Contact Sensor Reviews

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Offers and Discounts

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Buy Alarm Contact Sensor Online

Best Occupancy Sensor Switch

Ring Alarm Contact Sensor 6-pack (2nd Gen)

Get instant mobile alerts when doors and windows open in your home
Now smaller to enable increased placement options
Easy installation with no tools required
Mounts to door and window frames
Includes two 3V CR2032 batteries
Requires the Ring Alarm Base Station

Ring Alarm Outdoor Contact Sensor

Help secure outdoor gates, sheds, guesthouses, and windows with Ring Alarm Outdoor Contact Sensor.
Get mobile alerts when your outdoor gate opens, or set the sensor to automatically trigger your Ring Alarm siren when armed in Home or Away mode.
With its weather-resistant design, the Ring Alarm Outdoor Contact Sensor can withstand outdoor use in most climates.
Outdoor Contact Sensor comes with mounting tape and screws for easy installation on most surfaces.
Requires Ring Alarm or Ring Alarm Pro.
Ring Alarm and the professional monitoring service are available and ship only within the U.S. (excluding territories) and Canada.

QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 5 with 20 Screws

Product Information: Product name: Surface-mounted Magnetic Door Switch, Type: MC-31, Color: White, Material: Plastic
Specification: Contact Type: NC, Hole Dia.: 5.8mm, Actuation Distance: 8mm±18mm
Sizes: 64*12.*12mm and 64*20*12mm（L * W * H）
NC Type: NC means normally closed. If the magnet is closed to this switch, the signal is conductive, otherwise, if the magnet is far away from this switch, the signal is disconnected.
Applications: It is suitable for magnetic windows, doors, cabinets etc. Ideal for door, window security.

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353 Reviews

UHPPOTE Normal Closed Wired Screw-Terminal Surface-Mount Magnetic Contact for Window Door Security (Pack of 5)

Switch Type: NC (Normal closed type)
This Contact Works with Any Access Control or Burglar Alarm System Available
This contact can't connect directly to power, it works with your alarm system provide a switch signal. Working current under 12V
Great for use in family and factory window, door. etc.
NC means Normally Closed: When the magnet together, the circuit is conductive (light on); When the magnet separate, the circuit is not conductive (light off).

Seco-Larm SM-4601-L3Q Industrial Wide-Gap Magnetic Contact Switches, 3” Operation Gap NO/NC

Rugged aluminum housing
Weatherproof and sealed for outdoor use
Iridium-plated to have a high melting point and Vickers hardness, for higher power handling and long life
3" (76mm) Gap, 36" (91cm) wire leads enclosed in armored cable
Mounting bracket included

Hxchen MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch - (5 Sets)

☀️【Package Included】: 5 Sets x MC-33C Door Contact Sensors
☀️【Application】: The door contact sensors work as an anti-theft alarm, ideal for metal door and window.
☀️【Easy To Install】: Have small screw terminals which makes it much easier to wire. Closed loop magnetic contact that features a terminal block style connection for accepting wire. Mounting hole diameter is about 3/8 inch (9.5mm)
☀️【Contact Type】: NC (Normally Closed); NC means Normally Closed: When the magnet together, the circuit is conductive( light on ); When the magnet separate, the circuit is not conductive ( light off )
☀️【Hassle-Free Warranty】: Hxchen guarantee high quality and good service. Here with our 90-day money back risk-free purchase guarantee, order now! If you are not satisfied in any way, Refund or Replacement for any quality problem.

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,1 Door Sensor+1 Plug-in Receiver

🔔【Door Window Open Alarm】BITIWEND door chime can be used as an alarm, or as a way to remind businesses on the front door when a customer’s coming in. Alerting you when someone opens the door or a window, perfect for have children or senior family members.
🔔【Up to 58 Ringtones Choice】Door sensor offer 58 pop chimes and 5 level adjustable(0-110 dB), different chimes set for different doors so you can know which door you have a visitor come in. LED indicators are suitable for the elderly and hearing impaired.
🔔【Up to 600 FT Working Rang】Wireless door chime working rang up to 600ft in open area, completely cover your house or store, ensures you will never miss a visitor. Note: The battery level will affect the signal receiving range.
🔔【Expandable】Each door sensor or receiver can be expandable,you can use them with additional BITIWEND door sensors or doorbells. You can install them in your dining room, bedroom, living room, garage, yard, or your store and office.
🔔【Easy to install】Just plug the doorbell receiver into any standard outlet and tear the double- sided adhesive tape which on the back of door sensor( or screw mounted) and stick them to the door or window is fine, please take the insulating paper away before using the sensor.

1,689 Reviews

Door Chime BISTEE Wireless Door Alarm Contact Sensor Door Open Bell 600 FT Range with 58 Chimes 5 Volume Levels LED Indicator for Business/Home/Office/Stores (2 Plug-in Receiver & 3 Door Sensor)

🔔 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 door. The wireless door chime has been matched before shipment. If you need to replace music or add a transmitter, please re-match (Hold Receiver's music button over 3 seconds to 5 seconds, it will trigger clean pairing function).
✨ LIFETIME CUSTOMER SERVICE: BISTEE doorbell wireless is a brand after years of independent R&D and approved by FCC, CE, RoHS and other certificates; our customers can be provided with 30-day money-back and passionate after-sales service team from the date of purchase; can contact us at any time in case of any problem.

Smart Door Sensor 2 Pack, TESSAN WiFi Window Contact Sensor Work with Amazon Alexa, Google Assistant, No Hub Required, Trigger Phone Notification, Phone Alarm, Programmable with Smart Life Devices

Smart Security Sensor: TESSAN door and window alarm sensor is designed to monitor the open or close status of any entrance; An alert notification will automatic send to you in 10 seconds once the sensor triggered; Ideal for front door, window, baby room, garage and more; Door status and battery power can be check in app; No hub required; No extra cost; A must have security system accessories
Programmable Sensor: Extend your smart home automation with TESSAN wifi door sensor; Set up your smart routines in app; Automatically turn on your smart wall switches or lights when door opened; Automatically turn off your air-condition when window opened; More smart devices can be sync as long as they compatible with Smart Life app; Support 2.4Ghz Wifi only, dual-band (2.4G and 5G) WiFf need to set a separate 2.4G channel
Hand-Free Voice Control: TESSAN wifi garage sensor is compatible with Amazon Alexa and Google Assistant; Simply give a voice command to check the open or close status instead of going down or picking up your phone; Your voice device will work as chime, siren or alarm when the sensor triggered; Saving your operation time and make your smart home life more convenient and easier
Peace of Mind: All alarm record history can be check in app; The smart window sensor is built-in low consumption module, 2*AAA Alkaline battery provide 1-year monitoring; All the statuses of doors and windows will be displayed simultaneously in the app; Share the device to your families, they can check the status and get notified at the same time
Note: The door sensor itself does not include a chime; However, you can program it to some smart voice devices via Smart Life app; When the sensor triggered open or close, the voice devices will perform as an alarm or bell in 10 seconds

Eve Door & Window - Apple HomeKit Smart Home Wireless Contact Sensor for Windows & Doors, Automatically Trigger Accessories & Scenes, App Notifications, Bluetooth, Thread

Check your door or window: See the current open/closed state at a glance
Get activity notifications and automatically activate other HomeKit-enabled accessories courtesy of your home hub (HomePod mini, HomePod, or Apple TV)
HomeKit-enabled for unparalleled ease of use and advanced security; get up and running in a flash with quick & easy set up and no need for a bridge or gateway
Supports Bluetooth and Thread, and joins your Thread network automatically. Thread requires a HomePod mini as a border router
100% Privacy: No Eve cloud, no registration, no tracking. Local intelligence and direct communication without bridge or cloud dependency. Our highly professional, multilingual product support team is also based in Germany and ready to assist

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Last update 2021-11-26. Price and product availability may change.