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$15.99
Simplisafe - 1Pack Entry Sensor - White
Best Buy
80
$15.99
Simplisafe - 1Pack Entry Sensor - White
Best Buy
80
$54.99
Simplisafe - 4Pack Entry Sensor - White
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2K+
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Simplisafe - 4Pack Entry Sensor - White
Best Buy
2K+
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EZ-TONE Magnetic Door Chime Model:
Amazon.com
176
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$37.99
EZ-TONE Magnetic Door Chime Model:
Amazon.com
176
$79.99
Door Access Control System Inswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With ZL Bracket Remote Controller Exit Button
Amazon.com
1
Free shipping
$79.99
Door Access Control System Inswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With ZL Bracket Remote Controller Exit Button
Amazon.com
1
$155.53
Detex EAX500 Battery Powered Door Or Wall Mount Exit Alarm, 2.10" W X 2.375" D X 7.70" L
Amazon.com
120
Free shipping
$155.53
Detex EAX500 Battery Powered Door Or Wall Mount Exit Alarm, 2.10" W X 2.375" D X 7.70" L
Amazon.com
120
$99.99
Access Control System 600Lb Electric Magnetic Door Lock Kit: RFID Keypad, Remotes, Exit Button, Close To Entry Keypad & ID Card With 110-240VAC To
Amazon.com
2
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$99.99
Access Control System 600Lb Electric Magnetic Door Lock Kit: RFID Keypad, Remotes, Exit Button, Close To Entry Keypad & ID Card With 110-240VAC To
Amazon.com
2
$216.90
UHPPOTE 2.4Ghz Wifi Remote Access Control System 1200Lb Electric Magnetic Door Lock Kit With Smartphone App Access
Amazon.com
79
Free shipping
$216.90
UHPPOTE 2.4Ghz Wifi Remote Access Control System 1200Lb Electric Magnetic Door Lock Kit With Smartphone App Access
Amazon.com
79
$19.98
HEIMAN Window Door Alarms When Opened, Wifi Door Chime Sensor, Contact Sensor For Home Security, Smart Wireless Magnetic Door Open Detector, APP
Amazon.com
101
$19.98
HEIMAN Window Door Alarms When Opened, Wifi Door Chime Sensor, Contact Sensor For Home Security, Smart Wireless Magnetic Door Open Detector, APP
Amazon.com
101
$169.28
PG21MB MAGNETIC CONTACT DOOR ALARM LOCKNEW IN A BOX
Amazon.com
Free shipping
$169.28
PG21MB MAGNETIC CONTACT DOOR ALARM LOCKNEW IN A BOX
Amazon.com
Free shipping
$12.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
135
$12.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
135
$69.99
Door Access Control System Outswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With Remote Controller Exit Button
Amazon.com
1
Free shipping
$69.99
Door Access Control System Outswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With Remote Controller Exit Button
Amazon.com
1
$20.89
Mengshen Wireless Home Door Window Burglar Alarm DIY Safety Security Alarm System Magnetic Sensor With Remote Control - 2 Alarm 1 Remote Control M642
Amazon.com
869
$20.89
Mengshen Wireless Home Door Window Burglar Alarm DIY Safety Security Alarm System Magnetic Sensor With Remote Control - 2 Alarm 1 Remote Control M642
Amazon.com
869
$18.59
5Sets MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black
Amazon.com
24
$18.59
5Sets MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black
Amazon.com
24
$36.99
Yistech Caregiver Pager Door Alarms For Dementia Patients/Kids Safety/Home Security,Wireless Door Alarm Sensor For Elderly/Business/Home/Store (Three
Amazon.com
4
Free shipping
$36.99
Yistech Caregiver Pager Door Alarms For Dementia Patients/Kids Safety/Home Security,Wireless Door Alarm Sensor For Elderly/Business/Home/Store (Three
Amazon.com
4
$7.99
RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, For Home Security And Burglar Alarm Systems, Sets Of 3, Brown
Amazon.com
11
$7.99
RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, For Home Security And Burglar Alarm Systems, Sets Of 3, Brown
Amazon.com
11
$31.99
RC-36 NC/NO Magnetic Reed Switch Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, For Home Security And Burglar Alarm Systems,
Amazon.com
10
$31.99
RC-36 NC/NO Magnetic Reed Switch Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, For Home Security And Burglar Alarm Systems,
Amazon.com
10
$19.99
Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
Amazon.com
5
$19.99
Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
Amazon.com
5
$139.00
Alarm Controls 600S | Interior Single Door Magnetic Lock | Access Control
Qualified Hardware
4
Free shipping
$139.00
Alarm Controls 600S | Interior Single Door Magnetic Lock | Access Control
Qualified Hardware
4
$11.99
GAGALOR 4 Sets NC Wired Door Alarm Magnetic Contact Sensor With Double Side Tape
Amazon.com
50
$11.99
GAGALOR 4 Sets NC Wired Door Alarm Magnetic Contact Sensor With Double Side Tape
Amazon.com
50
$79.99
Door Access Control System RFID Keypad 600Lb Electric Magnetic Door Lock Kit With Exit Button Doorbell Chime Remote Control
Amazon.com
67
Free shipping
$79.99
Door Access Control System RFID Keypad 600Lb Electric Magnetic Door Lock Kit With Exit Button Doorbell Chime Remote Control
Amazon.com
67
$29.99
Door Window Alarm When Opened For Home Kids Safety With Remote, Door Entry Magnetic Sensor Alarm For Store/Garage,130Db Loud Alarm 4 Working Mode
Amazon.com
445
$29.99
Door Window Alarm When Opened For Home Kids Safety With Remote, Door Entry Magnetic Sensor Alarm For Store/Garage,130Db Loud Alarm 4 Working Mode
Amazon.com
445
$11.99
$13.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (6 Pcs) Home Alarm(Batteries Not I
Walmart
14
14% off
$11.99
$13.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (6 Pcs) Home Alarm(Batteries Not I
Walmart
14
$150.78
Alarm Controls 600S Electromagnetic Lock For Single Door, 600 Lbs Holding Force, Anodized Aluminum
Trudoor
$150.78
Alarm Controls 600S Electromagnetic Lock For Single Door, 600 Lbs Holding Force, Anodized Aluminum
Trudoor
$339.00
Detex EAX-411SK Surface Mount AC/DC Door Prop Alarm Kit, Back Box, Surface Magnetic Switch Contacts And 24VAC Transformer Included
Keyless Access Locks
$339.00
Detex EAX-411SK Surface Mount AC/DC Door Prop Alarm Kit, Back Box, Surface Magnetic Switch Contacts And 24VAC Transformer Included
Keyless Access Locks
$14.99
$29.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (10 Pcs) Home Alarm(Batteries Not
Walmart
50% off
$14.99
$29.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (10 Pcs) Home Alarm(Batteries Not
Walmart
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$11.99
$14.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries Not I
Walmart
17
20% off
$11.99
$14.99
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries Not I
Walmart
17
$58.99
$137.99
KTX-256851 Smart Home Magnetic Wifi Remote Alarm System With Door Reminder
Latomart.com
57% off
$58.99
$137.99
KTX-256851 Smart Home Magnetic Wifi Remote Alarm System With Door Reminder
Latomart.com
$46.99
$65.79
Door Window Alarm 4 Pack New Version With Two Volume Levels NOOPEL Magnet Triggered Burglar Intruder Entry Sensor Alert For Home Security With Batteries Included
fashionbirthfi
Free shipping
28% off
$46.99
$65.79
Door Window Alarm 4 Pack New Version With Two Volume Levels NOOPEL Magnet Triggered Burglar Intruder Entry Sensor Alert For Home Security With Batteries Included
fashionbirthfi
Free shipping
$835.50
Detex EAX-4200SK Surface Mount AC/DC Exit Alarm Door Prop Alarm Kit, Back Box, Surface Magnetic Switch Contacts And 24VAC Transformer And Rim
Keyless Access Locks
$835.50
Detex EAX-4200SK Surface Mount AC/DC Exit Alarm Door Prop Alarm Kit, Back Box, Surface Magnetic Switch Contacts And 24VAC Transformer And Rim
Keyless Access Locks
$34.50
$59.00
Ajax Wireless Doorprotect Magnetic Door Opening Detector White
Shop Ajax Security
41% off
$34.50
$59.00
Ajax Wireless Doorprotect Magnetic Door Opening Detector White
Shop Ajax Security
$301.72
$391.09
Detex - EAX-411SK - Door Prop Alarm Kit With Back Box Surface Magnetic Switch Contacts And 24VAC Transformer
LocksmithKeyless
22% off
$301.72
$391.09
Detex - EAX-411SK - Door Prop Alarm Kit With Back Box Surface Magnetic Switch Contacts And 24VAC Transformer
LocksmithKeyless
$49.19
$67.39
Door Window Alarm 4 Pack New Version With Two Volume Levels NOOPEL Magnet Triggered Burglar Intruder Entry Sensor Alert For Home Security With Batteries Included
jmpropiedadesuk
Free shipping
27% off
$49.19
$67.39
Door Window Alarm 4 Pack New Version With Two Volume Levels NOOPEL Magnet Triggered Burglar Intruder Entry Sensor Alert For Home Security With Batteries Included
jmpropiedadesuk
Free shipping
$329.00
Alarm Controls 600LB Single Magnetic Lock With Bond Sensor, Door Status Sensor And Status LED
Keyless Access Locks
$329.00
Alarm Controls 600LB Single Magnetic Lock With Bond Sensor, Door Status Sensor And Status LED
Keyless Access Locks
$10.18
Wireless Door Window Siren Alarm With Remote & Magnetic Sensor
bigupgadgets.com
$10.18
Wireless Door Window Siren Alarm With Remote & Magnetic Sensor
bigupgadgets.com
$197.00
Detex Eax-300 | Door Propped Alarm | Exit Devices, Alarms & Panic Bars
Qualified Hardware
Free shipping
$197.00
Detex Eax-300 | Door Propped Alarm | Exit Devices, Alarms & Panic Bars
Qualified Hardware
Free shipping
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    Shop Magnetic Door Alarm System

    Sponsored
    About our ads
    $15.99
    Simplisafe - 1Pack Entry Sensor - White
    Best Buy
    80
    $15.99
    Simplisafe - 1Pack Entry Sensor - White
    Best Buy
    80
    $54.99
    Simplisafe - 4Pack Entry Sensor - White
    Best Buy
    2K+
    Free shipping
    $54.99
    Simplisafe - 4Pack Entry Sensor - White
    Best Buy
    2K+
    $37.99
    EZ-TONE Magnetic Door Chime Model:
    Amazon.com
    176
    Free shipping
    $37.99
    EZ-TONE Magnetic Door Chime Model:
    Amazon.com
    176
    $79.99
    Door Access Control System Inswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With ZL Bracket Remote Controller Exit Button
    Amazon.com
    1
    Free shipping
    $79.99
    Door Access Control System Inswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With ZL Bracket Remote Controller Exit Button
    Amazon.com
    1
    $155.53
    Detex EAX500 Battery Powered Door Or Wall Mount Exit Alarm, 2.10" W X 2.375" D X 7.70" L
    Amazon.com
    120
    Free shipping
    $155.53
    Detex EAX500 Battery Powered Door Or Wall Mount Exit Alarm, 2.10" W X 2.375" D X 7.70" L
    Amazon.com
    120
    $99.99
    Access Control System 600Lb Electric Magnetic Door Lock Kit: RFID Keypad, Remotes, Exit Button, Close To Entry Keypad & ID Card With 110-240VAC To
    Amazon.com
    2
    Free shipping
    $99.99
    Access Control System 600Lb Electric Magnetic Door Lock Kit: RFID Keypad, Remotes, Exit Button, Close To Entry Keypad & ID Card With 110-240VAC To
    Amazon.com
    2
    $216.90
    UHPPOTE 2.4Ghz Wifi Remote Access Control System 1200Lb Electric Magnetic Door Lock Kit With Smartphone App Access
    Amazon.com
    79
    Free shipping
    $216.90
    UHPPOTE 2.4Ghz Wifi Remote Access Control System 1200Lb Electric Magnetic Door Lock Kit With Smartphone App Access
    Amazon.com
    79
    $19.98
    HEIMAN Window Door Alarms When Opened, Wifi Door Chime Sensor, Contact Sensor For Home Security, Smart Wireless Magnetic Door Open Detector, APP
    Amazon.com
    101
    $19.98
    HEIMAN Window Door Alarms When Opened, Wifi Door Chime Sensor, Contact Sensor For Home Security, Smart Wireless Magnetic Door Open Detector, APP
    Amazon.com
    101
    $169.28
    PG21MB MAGNETIC CONTACT DOOR ALARM LOCKNEW IN A BOX
    Amazon.com
    Free shipping
    $169.28
    PG21MB MAGNETIC CONTACT DOOR ALARM LOCKNEW IN A BOX
    Amazon.com
    Free shipping
    $12.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    135
    $12.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    135
    $69.99
    Door Access Control System Outswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With Remote Controller Exit Button
    Amazon.com
    1
    Free shipping
    $69.99
    Door Access Control System Outswinging 600Lbs Magnetic Lock Kit Build-In Alarm Beeper With Remote Controller Exit Button
    Amazon.com
    1
    $20.89
    Mengshen Wireless Home Door Window Burglar Alarm DIY Safety Security Alarm System Magnetic Sensor With Remote Control - 2 Alarm 1 Remote Control M642
    Amazon.com
    869
    $20.89
    Mengshen Wireless Home Door Window Burglar Alarm DIY Safety Security Alarm System Magnetic Sensor With Remote Control - 2 Alarm 1 Remote Control M642
    Amazon.com
    869
    $18.59
    5Sets MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black
    Amazon.com
    24
    $18.59
    5Sets MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black
    Amazon.com
    24
    $36.99
    Yistech Caregiver Pager Door Alarms For Dementia Patients/Kids Safety/Home Security,Wireless Door Alarm Sensor For Elderly/Business/Home/Store (Three
    Amazon.com
    4
    Free shipping
    $36.99
    Yistech Caregiver Pager Door Alarms For Dementia Patients/Kids Safety/Home Security,Wireless Door Alarm Sensor For Elderly/Business/Home/Store (Three
    Amazon.com
    4
    $7.99
    RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, For Home Security And Burglar Alarm Systems, Sets Of 3, Brown
    Amazon.com
    11
    $7.99
    RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, For Home Security And Burglar Alarm Systems, Sets Of 3, Brown
    Amazon.com
    11
    $31.99
    RC-36 NC/NO Magnetic Reed Switch Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, For Home Security And Burglar Alarm Systems,
    Amazon.com
    10
    $31.99
    RC-36 NC/NO Magnetic Reed Switch Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, For Home Security And Burglar Alarm Systems,
    Amazon.com
    10
    $19.99
    Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
    Amazon.com
    5
    $19.99
    Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
    Amazon.com
    5
    $139.00
    Alarm Controls 600S | Interior Single Door Magnetic Lock | Access Control
    Qualified Hardware
    4
    Free shipping
    $139.00
    Alarm Controls 600S | Interior Single Door Magnetic Lock | Access Control
    Qualified Hardware
    4