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Door Open Alarm In Home Sensors & Motion Detectors
Top rated
See All
Honeywell 5800PIRRES Wireless LED Motion Sensor
(70)
91%
agree - Would recommend
C $38.53 New
C $27.52 Used
Philips Hue Smart Wireless Motion Sensor - White (473389)
(69)
100%
agree - Would recommend
C $75.70 New
C $24.96 Used
SimpliSafe ES3 Entry Sensor
(52)
97%
agree - Would recommend
C $13.77 New
2gig DW10 Thin Door Window Contact ETL Listed
(21)
100%
agree - Would recommend
C $21.97 New
C $9.64 Used
ecobee SmartSensor for Doors and Windows - Pack of 2 (EB-DWSHM2PK-01)
(9)
100%
agree - Good value
C $68.82 New
C $49.50 Used
Best selling
See All
Honeywell 5800PIRRES Wireless LED Motion Sensor
(69)
C $38.53 New
C $27.52 Used
2gig DW10 Thin Door Window Contact ETL Listed
(21)
C $21.97 New
C $9.64 Used
ecobee SmartSensor for Doors and Windows - Pack of 2 (EB-DWSHM2PK-01)
(9)
C $68.82 New
C $49.50 Used
SimpliSafe ES3 Entry Sensor
(51)
C $13.77 New
DSC PG9985 Wireless Flood Detector
C $68.83 New
Samsung FADTDW1 ADT Door and Window Detector
(4)
C $15.68 New
Philips Hue Smart Wireless Motion Sensor - White (473389)
(70)
C $75.70 New
C $24.96 Used
2gig eSeries 2GIG-PIR1e-345 Encrypted Infrared Motion Detector
C $34.42 New
C $34.42 Used
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Door Open Alarm In Home Sensors & Motion Detectors
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376 results
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Filter
Type
Window Sensor
Door Sensor
Door Alarm
Audio Intercom
Door Entry System
Photoelectric Beam
Siren
Power Supply
Transmitter
Not Specified
Features
Battery
Wi-Fi
Waterproof
Wall Mounted
Motion/PIR Activated
Instant Alert
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Open box
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Price
Under C $20
C $20 to C $50
Over C $50
All Filters
Car Door Alarm Door Open Alarm Sensor Car Alert High Sensitivity Sensor Loud
Brand New
·
Unbranded
C $12.99
Was:
C $14.43
was - C $14.43
or Best Offer
Free shipping
Door Sensor Chime Wireless Window Entry Alarm 48 Ringtones Security for Kids Dog
Brand New
C $23.17
Was:
C $27.25
was - C $27.25
or Best Offer
C $20.54 shipping
Normally Open/Close Recessed Magnet Reed Switch Door Contact Entry Alarm Sensor
Brand New
·
Unbranded
C $8.24
to
C $13.74
C $4.11 shipping
LOT Smart WiFi Door Window Sensor SoundSecurity Alarm Door Open Closed Detectors
Brand New
·
Unbranded
C $28.35
to
C $349.00
Was:
C $29.84
was - C $29.84
C $6.87 shipping
Magnetic Reed Switch Normally Open or Closed NC NO Door Alarm Window Security G3
Brand New
C $14.35
C $15.19 shipping
520 sold
Door Open Sensor Chime 2 Magnetic Sensor Wireless Alarm 48 Chime 1300ft for Home
Brand New
C $34.54
Was:
C $39.69
was - C $39.69
or Best Offer
C $21.34 shipping
85 sold
Door Open Sensor Chime Magnetic Sensor Alarm 48 Chime Wireless for Home Security
Brand New
C $26.56
Was:
C $30.54
was - C $30.54
or Best Offer
C $20.64 shipping
78 sold
5PCS Door Window Sensor Magnetic Reed Switch NC / NO for Alarm Systems 100VDC
Brand New
·
Unbranded
C $13.17
to
C $18.40
C $6.19 shipping
5Piece Door Window Sensor Magnetic Reed Switch NC / NO for Alarm Systems DC100V
Brand New
·
Unbranded
C $11.11
to
C $16.68
Was:
C $17.56
was - C $17.56
C $7.55 shipping
Tuya WiFi Window / Door Sensor Remote Control Smart Home Security Alarm Sensor
Brand New
·
Unbranded
C $14.97
to
C $39.86
C $15.95 shipping
33 watching
Wireless Door Open Chime Sensor Bell 48 Melodies 5 Adjustable Volume for Office
Brand New
C $26.11
Was:
C $30.72
was - C $30.72
or Best Offer
C $20.62 shipping
109 sold
Door Chime Wireless Window Open Contact Sensor Alarm 918 FT 36 Chimes for Store
Brand New
C $15.47
to
C $59.88
Was:
C $16.28
was - C $16.28
C $20.31 shipping
2x Magnetic Reed Switch Normally Open or Closed NC NO Door Alarm Window Security
Brand New
C $13.74
C $21.37 shipping
509 sold
NO/NC Zinc Alloy Garage Rolling Gate Door Magnetic Switch Alarm Sensor
Brand New
·
Unbranded
C $23.36
to
C $26.11
C $5.49 shipping
LOT Tuya Smart Zigbee Door Sensor Door Open/Closed Detector Home Alarm Security
Brand New
·
Unbranded
C $31.87
to
C $207.16
Was:
C $33.55
was - C $33.55
C $6.87 shipping
Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Door Sensor New
Brand New
·
Unbranded
C $46.39
Was:
C $51.55
was - C $51.55
C $6.87 shipping
AJAX DOORPROTECT MAGNETIC CONTACT FOR AJAX OPENING (9NA)
Brand New
·
Ajax
C $68.73
5 Sets Magnetic Reed Switch NC NO Door Contact Alarm Window Security Sensor DIY
Brand New
C $15.11
to
C $20.61
C $5.49 shipping
Wireless Door Open Chime Sensor Bell 48 Melodies 5 Adjustable Volume for Office
Brand New
C $28.36
Was:
C $31.51
was - C $31.51
or Best Offer
C $20.69 shipping
9 watching
RC-33 Normally Open/Close Recessed Magnet Switch Door Contact Entry Alarm Sensor
Brand New
·
Unbranded
C $4.48
to
C $12.56
C $2.69 shipping
F06 TUYA APP WiFi Door Window Sensor Open/Close Burglar Alarm Security Detector
Brand New
C $12.36
Was:
C $13.74
was - C $13.74
or Best Offer
Free shipping
5X Magnetic Switch Normally Open Closed NC NO Door Alarm Window Security Sensor
Brand New
C $24.72
or Best Offer
Free shipping
WiFi Wireless Smart Door Window Sensor Detector Safe Alarm for Alexa Google Home
Brand New
·
Unbranded
C $14.64
or Best Offer
C $15.21 shipping
660 sold
Tuya WiFi Smart Door Sensor Window Door Open Closed Detectors Smart Home
Brand New
·
Unbranded
C $15.11
Free shipping
Door Magnetic Sensor Door Window Open Closed Detector Alarm with Alexa Google
Brand New
·
Unbranded
C $24.51
Was:
C $25.81
was - C $25.81
C $6.87 shipping
NO/NC Magnetic Contact Reed Switch Door Window Sensor Entry Security Alarm
Brand New
·
Unbranded
C $6.86
to
C $13.74
C $6.86 shipping
New Listing
DIY TUYA APP WiFi Door Window Sensor Open/Close Burglar Alarm Security Detector
Brand New
C $10.99
or Best Offer
Free shipping
Tuya Smart WiFi Door Sensor Door Open/Closed Detectors Sound Alarm Timed Arming
Brand New
C $17.86
to
C $46.06
Free shipping
Smart Door Sensor Door Open Closed Detectors Security Protection Alarm System
Brand New
·
Unbranded
C $28.94
Was:
C $32.16
was - C $32.16
C $6.87 shipping
Wireless Door Bell Chimes Open Welcome Entry Motion Sensor Alarm Home Security
Brand New
·
KERUI
C $12.91
Was:
C $13.74
was - C $13.74
or Best Offer
C $20.24 shipping
5Piece Door Window Sensor Magnetic Reed Switch NC / NO for Alarm Systems DC100V
Brand New
·
Unbranded
C $11.77
to
C $17.68
C $6.86 shipping
LOT 433Mhz Alarm System Automatic Sensor Smart Wireless Door Window Detectors
Brand New
·
Unbranded
C $20.90
to
C $92.15
Was:
C $31.18
was - C $31.18
C $6.87 shipping
RC-33 Normally Open/Close Recessed Magnet Switch Door Contact Entry Alarm Sensor
Brand New
·
Unbranded
C $6.67
to
C $17.86
C $6.19 shipping
RC-33 Normally Open/Close Recessed Magnet Switch Door Contact Entry Alarm Sensor
Brand New
·
Unbranded
C $3.38
to
C $13.05
C $5.49 shipping
KERUI Wireless Door Bell Open Welcome Entry Motion Sensor Alarm Home Security US
Brand New
·
KERUI
C $17.86
or Best Offer
C $15.30 shipping
Door Window Alarm, 130dB Vibration Alarm Sensor Door Window Security Open Alarms
Brand New
C $12.39
C $2.69 shipping
TUYA APP WiFi Door Window Sensor Open/Close Burglar Alarm Security Detector
Brand New
C $9.18
Was:
C $9.67
was - C $9.67
or Best Offer
Free shipping
2PCS WiFi Smart Window Door Sensor Detector Home Burglar Alarm Fit For Tuya APP
Brand New
·
KERUI
C $24.54
Was:
C $26.11
was - C $26.11
or Best Offer
C $15.50 shipping
LOT Smart WiFi Door Window Sensor SoundSecurity Alarm Door Open Closed Detectors
Brand New
·
Unbranded
C $30.17
to
C $371.10
Was:
C $195.36
was - C $195.36
C $6.87 shipping
Tuya Door Window Sensor Wifi/Zigbee, Open Close Detector Home Security Alarm Sys
Brand New
C $19.31
C $7.18 shipping
1pc Tuya Zigbee/WiFi Smart Door Window Sensor Smart Home Wireless Detector Alarm
Brand New
·
Unbranded
C $17.53
to
C $18.60
Free shipping
New Listing
2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window
Brand New
C $16.11
C $15.25 shipping
Voxon Door Window Security Alarm 2-Pack VX-WA802 White Loud Alert Open Box
New (Other)
C $19.23
C $15.34 shipping
RC-33 Normally Open/Close Recessed Magnet Switch Door Contact Entry Alarm Sensor
Brand New
·
Unbranded
C $3.38
to
C $13.05
C $5.43 shipping
Smart Door Window Sensor Open/Closed Security Alarm Work with Alexa Google Home
Brand New
·
Unbranded
C $21.13
to
C $81.28
Was:
C $22.25
was - C $22.25
C $6.87 shipping
Tuya WiFi Window / Door Sensor Remote Control Smart Home Security Alarm Sensor
Brand New
·
KERUI
C $27.42
to
C $104.70
Was:
C $51.97
was - C $51.97
C $16.22 shipping
Wireless Door Open Chime Sensor Bell 32 Melodies 4 Adjustable Volume for Office
Brand New
·
KERUI
C $18.31
to
C $28.13
Was:
C $29.93
was - C $29.93
C $20.68 shipping
Radio Shack Wireless Door / Window Alarm with Keylock 49-421A NEW Open Box
New (Other)
·
RadioShack
C $24.68
*Vintage Touch Alert Home or Office Door Knob Alarm Model # 973 *NEW-Open Box
New (Other)
C $13.74
Door Open Alert Alarm Door Window Sensor Alarm Adjustable Volume For Business
Brand New
·
Unbranded
C $27.67
or Best Offer
C $1.80 shipping
2PCS WIFI Smart Door Sensor Window Detector Alarm Tuya APP For Alexa Google Home
Brand New
·
Unbranded
C $23.30
or Best Offer
C $15.45 shipping
Door Alarm for Home/Office,Wireless Door Open Chime Range 656 Feet/52 Chimes/4 L
Brand New
C $27.43
or Best Offer
C $20.66 shipping
Door Alarm Vibration Sensor Home Security Alarm Door Open Alert Security Alarm
Brand New
·
Unbranded
C $18.55
Free shipping
Wireless Window/Door Open 32 Chime Entry Security Alarm Doorbell Magnetic Sensor
Brand New
·
KERUI
C $32.08
Was:
C $33.77
was - C $33.77
or Best Offer
C $15.72 shipping
DIY TUYA APP WiFi Door Window Entry Sensor Burglar Home Alarm Security Detector
Brand New
C $9.89
Was:
C $10.99
was - C $10.99
or Best Offer
Free shipping
BLUEbits Open Window Door Detector Kit alarm 500 Feet Home Security
Brand New
C $13.74
C $20.25 shipping
Only 1 left!
Car Door Alarm Sensor Car Alert Wireless Vibration Sensor Anti-theft Warning
Brand New
·
Unbranded
C $25.16
Was:
C $28.58
was - C $28.58
or Best Offer
C $4.11 shipping
2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security
Brand New
C $16.27
C $15.25 shipping
Door Window Sensor Magnetic Open Closed Detector Security Burglar Alarm Sensors
Brand New
·
Unbranded
C $52.09
Was:
C $57.88
was - C $57.88
C $6.87 shipping
2 Pack Wireless Door Bell Chimes Open Welcome Entry Motion Sensor Alarm Security
Brand New
·
KERUI
C $31.18
Was:
C $32.82
was - C $32.82
or Best Offer
C $15.69 shipping
Results Pagination - Page 1
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91% agree - Would recommendC $38.53 NewC $27.52 Used100% agree - Would recommendC $75.70 NewC $24.96 Used100% agree - Would recommendC $21.97 NewC $9.64 Used100% agree - Good valueC $68.82 NewC $49.50 Used