Best Door Contact Alarm

Door Stop Alarm Home Security, Travel Security Wedge Door Stoppers for Bottom of Door with 120dB Loud, Anti-Slip Floor Mount Doorstop Stop Door from Opening, Portable Hotel Room Door Security Devices

... Pack/ 2Pack Option: If you need an affordable, easy-to-use, portable safety device, you will never go wrong with the CRANACH door stop alarm security door wedge intruder alert to use at home, travel, and outdoors. CRANACH offers friendly and hassle-free after-service. If you have any questions, please feel free to contact us. Warm Notes: 1) Only works for door seam between 0.39-1.4 inches (10-35mm).
2) This doorstops wedge alarm can't be stacked to use.
NOTE: As soon as turned the button “on” the alarm system will be turned on and the alarm will start when the platen receives pressure, it started sounding..

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Techko Maid Inc S187D Safe Pool Alarm with Magnetic Sensor and Bypass

DESIGNED TO MONITOR: Techko's S187D Safe Pool Alarm is designed to monitor a gate, door, window or other entryway to your pool area.
SIREN SOUND: A high output 110 dB alarm siren sounds when the magnetic contact is broken without pressing the adult bypass button.
ADVANCED SENSORS: Two sensors are included so that you can have your sliding glass door open, with your screen door shut, leaving the alarm active.
PROTECTIVE MODE: This alarm is always in protective mode and will sound the instant a door, window or gate is opened and will continue until the bypass button is triggered.
CERTIFICATIONS: The S187D is ETL listed and approved under UL 2017 standards.

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Entry Alert Chime ERA-DOOR ALARM by Safeguard Supply - Wireless Doorbell with 3/4 Mile Range, 120dB Siren & Flashing Strobe Kit - Multi Function Door Bell Ringer Wireless Push Button & Contact Sensor

Easy To Install Powerful Door Chime For Demanding Residential & Commercial Applications - Duty Cycle weatherproof door bell pushbutton & magnetic contact door alarm sensor that will travel 4000' through concrete, steel metal, brick and stone traversing multiple floors and separate buildings..
Strobe Siren Alarm Module Has Attention Getting 120dB Loud Emergency Safety Alarm Level: Can be used as a hearing impaired doorbell, wireless doorbell for classroom, silent alarm, or door chime for business when entering in noisy or busy locations..
Expandable & Easily Modifiable: Use unlimited number of Safeguard Supply ERA-UTDCR receivers featuring 4 x 12VDC outputs allowing connection of different 12VDC accessories & ERA-VPRX portable receivers. Pair up to 12 Safeguard Supply ERA transmitters (motion, driveway, door contact & push buttons)..
USA Engineered Commercial Grade Wireless Door Bell: Safeguard Supply is a respected name standing out in a market full of low cost under performing imports. Our innovative heavy duty product line is designed to meet the demanding needs of today's largest homes, businesses, and facilities of all types..
Small Business Located In The USA Providing Custom Service & Support: All our products are designed to install yourself. We a....

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DENFOON WiFi Door Alarm Sensor Wireless Real-Time 2 in 1 Door Window Alarm up to 110db, Home Security Door Open Contact Sensors, Work with Alexa and Google Assistant

...ving room, garage, yard, the little store, or office. A high-quality adhesive tap could help you fix the door alarm sensor to any place you want..
【Package Included】DENFOON Door Sensor x1, Magnet Sensor x1, Double-sides Adhesive Tap x2, User Guide x1, Installation Tools x1. And permanent customer support, please contact us freely for any questions, we will always be here for you..

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WiFi Door Sensor Alarm: Smart Door Window Sensor with 90db Real-time Alarm, App Notification,Wireless Door Open Contact Sensor for Home Security Burglar Alert Compatible with Alexa Google Home (4pack)

...t life app via 2.4GHz Wifi. when door/window is opened or closed, the wifi door sensor will make a 90DB sound alarm and push instant App notification to your smartphone. You can check the alarm History on your app.
COMPATIBLE WITH ALEXA AND GOOGLE ASSISTANT: The door alarm contact sensor is compatible with Alexa and Google Assistant, supports voice control. You can detect the status of your doors, windows, cabinets, drawers or anywhere by voice..
A BREEZE TO AUTOMATE YOUR HOME: The alexa door sensor works seamlessly with other Smart Life or Tuya system appliances in your home. Setting custom scenes in your smart home system, for example, Have your lights turn bright when your baby opens a storage area with potentially dangerous objects. Turn off the air conditioner when you open the windows in your room.
UPGRADED WIFI WINDOW DETECTOR: Our window sensors for security meet all your needs. You can disarm or arm the window alarm sensor on your app remotely, also you can set timed arming or disarming as your need.
Set the alarm duration and alarm volume. Get alert notifications when your battery is running low. All the func....

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WSDCAM Refrigerator Alarm When Opened Wireless Fridge Alarm Door Open Alarm - (1 Pack 108dB Freezer Door Alarm with 4 Modes + 2 Pack 90dB Freezer Door Alarm)

Package inlcuding 3 pack alarm (1 Pack 108dB Freezer Door Alarm with 4 Modes + 2 Pack 90dB Freezer Door Alarm ).
108dB Freezer Door Alarm - This alarm with 4 modes, it’s not only a refrigerator alarm, but also a door alarm for home security helps deter intruder/thieves effectively by 108dB loud alarm, and can be door open chime help notify you if children/pet or others are coming/ going. You can easy to set appropriate mode as your need.
4 Modes: 1. Time Delay Alarm (sounds “Di-Di-Di” from 0dB to 108dB if door stays open for 3/15/30/60s) 2. General Alarm (alarm stop if door closed).
3. Constant Alarm (constant alarm even door closed).
4. Door Open Chime (sounds “DingDong” once door opens).
90dB Freezer Door Alarm - Only 60s DELAY Mode. Wireless freezer alarm keeps ringing if the freezer door stays open for 60 seconds. It will only alert you when freezer door has been left open for 60s, it will not annoying you while you want the door open.
0.32" ULTRA-SLIM DESIGN - Ultra-slim door open alarm, save space and suitable for most of freezers/fridges. Size: 3.15" x 1.38" x 0.32". Just ON/Off button, super easy to use.

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Window Door Alarm Sensors for Kids Safety Pool Door Alarms for Home Security

【Upgraded Window Alarms】CHIME/ALARM 2 MODES, Chime mode will sound twice when the door/window is opened,ALARM MODE will keep souding when door or window is opened.
when burglar opens or break-ins the store or home, the sound will scare off the burglar and reminding you.
【Protect Your Kids Safety】This door alarms is a good reminder ,it will send alarms to warn you if your kids who sneak out bedroom or house and also will alert you if someone opens your door/window..
【Easy To Install】 ,Peel and stick the product to door or window with the double-sided tape, No wiring needed! MAKE SURE THE GAP BETWEEN THE ALARM AND MAGNET PART WITHIN 0.6IN.
【 GIFT & WARRANTY】This alert chime is a good gift for relatives and friends to used to remind visitors, family anti-theft,etc. 1-year warranty and please contact us if you have any questions for our door bells chimes.

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tolviviov Home Alarm System(2nd Gen), 12 Pieces Smart Home Alarm Security System DIY No Monthly Fee, Phone Alert, Alarm Siren, Door/Window Sensors, Remotes, Work with Alexa, for House Apartment Office

...within minutes. No professional is required. The wireless connection devices does not damage the wall. The alarm station should ALWAYS CONNECT to AC adapter. The backup battery works for 8 hours, only as an emergency battery..
✅BUY with Confidence - The smart security system comes with a base station, 2 remotes, 9 contact sensors. tolviviov home alarm system can be used not only for your house or apartment, but also for offices, garage, shops, stores, condos. etc. No Monthly Fee. No Contacts..

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jing Magnetic Reed Switch MC-31B NC & NO Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5

Product Name: Magnetic Door Contact Reed Switch.
Product Size: 55 x 12.5 x 11mm / 2.2" x 0.49" x 0.43"(L*W*H).
Mounting Hole Size: 7 x 2.5mm/ 0.28" x 0.1"(L*W)..
Contact Capacity: 500(mA) (Maximum Switch Current), Rated Power: 10W(Maximum Switch Power).
Contact Type: NC/NO/COM,Trigger Range: 15-25mm..
Application: Magnetic door contact reed switch great for door alarm sensor, alarm, LED Switch, Relay, GPS low voltage devices...etc., Effective for Theft Deterrence. Yes ideal wooden door or window use..
Package Content: 5Sets x MC-31B Magnetic Door Switch,Some Mounting Screws. Have our worry-free 90-daywarranty and friendly customer service..

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