Shop half moon door contact sensor

Sponsored
$89.99
Ring Alarm Contact Sensor 6-Pack (2Nd Gen)
Amazon.com
26K+
Free shipping
$89.99
Ring Alarm Contact Sensor 6-Pack (2Nd Gen)
Amazon.com
26K+
$237.92
$339.92
Simplisafe Home Security System DIY Starter
SimpliSafe, Inc.
Free shipping
30% off
$237.92
$339.92
Simplisafe Home Security System DIY Starter
SimpliSafe, Inc.
Free shipping
$449.10
$549.99
Alarm Lock Trilogy - DL2700LD - Access Control Lever Set - Remote Release FOB & Classroom Lockdown - Satin Chrome - 26D
UHS Store
Free shipping
18% off
$449.10
$549.99
Alarm Lock Trilogy - DL2700LD - Access Control Lever Set - Remote Release FOB & Classroom Lockdown - Satin Chrome - 26D
UHS Store
Free shipping
$94.00
GE Edwards 1076CH-N Recessed Steel Door Contact With Wire Leads, 3/4" Diameter, Higher Security, Biased For Higher Security Applications, Single
Keyless Access Locks
$94.00
GE Edwards 1076CH-N Recessed Steel Door Contact With Wire Leads, 3/4" Diameter, Higher Security, Biased For Higher Security Applications, Single
Keyless Access Locks
$69.46
2507A-L Edwards Sentrol Magnetic Contact
Valin Process Control Solutions
$69.46
2507A-L Edwards Sentrol Magnetic Contact
Valin Process Control Solutions
$39.99
Ring Alarm Contact Sensor 2-Pack (2Nd Gen)
Amazon.com
26K+
Free shipping
$39.99
Ring Alarm Contact Sensor 2-Pack (2Nd Gen)
Amazon.com
26K+
$25.99
Hxchen RC-35 NC & NO Wired Magnetic Door Window Contact Sensor Switch Contact Sensor Alarm Magnetic Reed Switch White - (5 Sets)
Amazon.com
36
$25.99
Hxchen RC-35 NC & NO Wired Magnetic Door Window Contact Sensor Switch Contact Sensor Alarm Magnetic Reed Switch White - (5 Sets)
Amazon.com
36
$16.39
5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, For DC 5V 12V 24V
Amazon.com
17
$16.39
5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, For DC 5V 12V 24V
Amazon.com
17
$143.90
Remote Door Chime With Infrared Motion Sensor
Cstore1 - Official
$143.90
Remote Door Chime With Infrared Motion Sensor
Cstore1 - Official
$15.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
114
$15.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
114
$31.05
1076CW-N Edwards Sentrol 3/4 in Steel Door Contact W/Wire Leads
Valin Process Control Solutions
$31.05
1076CW-N Edwards Sentrol 3/4 in Steel Door Contact W/Wire Leads
Valin Process Control Solutions
$69.99
Ring Alarm Glass Break Sensor - 2-Pack
Amazon.com
2K+
Free shipping
$69.99
Ring Alarm Glass Break Sensor - 2-Pack
Amazon.com
2K+
$19.99
Ring Alarm Contact Sensor (2Nd Gen)
Amazon.com
27K+
$19.99
Ring Alarm Contact Sensor (2Nd Gen)
Amazon.com
27K+
$43.03
Magnetic Contact: Surface Mount, 2 in Lg, 11/16 in Dp, 3/8 in Ht Model: 2EXU5
Grainger
$43.03
Magnetic Contact: Surface Mount, 2 in Lg, 11/16 in Dp, 3/8 in Ht Model: 2EXU5
Grainger
$20.89
Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-Inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof
Amazon.com
217
$20.89
Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-Inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof
Amazon.com
217
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
58
Free shipping
$78.35
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
58
$22.67
Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap,
Amazon.com
100
$22.67
Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap,
Amazon.com
100
$114.95
Liftmaster CPS-U Commercial Photo Eye System, PR
Amazon.com
21
Free shipping
$114.95
Liftmaster CPS-U Commercial Photo Eye System, PR
Amazon.com
21
$89.99
Ring Alarm Outdoor Contact Sensor - 2-Pack
Amazon.com
1K+
Free shipping
$89.99
Ring Alarm Outdoor Contact Sensor - 2-Pack
Amazon.com
1K+
$15.48
41A5034 Garage Door Safety Sensor Kit Replacement For Liftmaster Sears Craftsman Chamberlain Sensor Beam Eyes (Replace G801CB-P, 801CB-P)
Amazon.com
23
$15.48
41A5034 Garage Door Safety Sensor Kit Replacement For Liftmaster Sears Craftsman Chamberlain Sensor Beam Eyes (Replace G801CB-P, 801CB-P)
Amazon.com
23
$29.99
TREATLIFE Wifi Smart Door Sensor 1 Pack, 2.4Ghz Window Alarm Sensor, Wireless Contact Sensor For Home Security, Smart Home Devices Compatible With
Amazon.com
29
$29.99
TREATLIFE Wifi Smart Door Sensor 1 Pack, 2.4Ghz Window Alarm Sensor, Wireless Contact Sensor For Home Security, Smart Home Devices Compatible With
Amazon.com
29
$297.39
$424.89
Simplisafe DIY Wireless Home Security System
SimpliSafe, Inc.
Free shipping
30% off
$297.39
$424.89
Simplisafe DIY Wireless Home Security System
SimpliSafe, Inc.
Free shipping
$25.97
Door Alarms When Opened, METAK Wireless Door Sensor With 500ft Wider Range LED Indicator, Personalized Door Chime Offers 58 Chimes 5 Volume Levels
Amazon.com
1K+
$25.97
Door Alarms When Opened, METAK Wireless Door Sensor With 500ft Wider Range LED Indicator, Personalized Door Chime Offers 58 Chimes 5 Volume Levels
Amazon.com
1K+
$29.99
Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
Amazon.com
1K+
$29.99
Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
Amazon.com
1K+
$154.00
Bosch Security Systems Ds150i PIR Exit Sensor (White)
Keyless Access Locks
$154.00
Bosch Security Systems Ds150i PIR Exit Sensor (White)
Keyless Access Locks
$5.33
Alarm Contact Sensor
Ring
$5.33
Alarm Contact Sensor
Ring
$29.96
Honeywell Ademco 5816WMWH White Door/Window Transmitter W/Magnet
Amazon.com
1
$29.96
Honeywell Ademco 5816WMWH White Door/Window Transmitter W/Magnet
Amazon.com
1
$25.99
OUVOPO Zigbee Contact Sensor 2 Pack, Mini Smart Door Sensor, Home Automation, Kid Safety, Work With Alexa, Smartthings, Home Assistant, Aeotec,
Amazon.com
116
$25.99
OUVOPO Zigbee Contact Sensor 2 Pack, Mini Smart Door Sensor, Home Automation, Kid Safety, Work With Alexa, Smartthings, Home Assistant, Aeotec,
Amazon.com
116
$114.95
Liftmaster CPS-U Commercial Photo Eyes
Amazon.com
85
Free shipping
$114.95
Liftmaster CPS-U Commercial Photo Eyes
Amazon.com
85
$179.99
Ring Spotlight Cam Pro, Battery | 3D Motion Detection, Two-Way Talk With Audio+, And Dual-Band Wifi (2022 Release) - White
Amazon.com
44
Free shipping
$179.99
Ring Spotlight Cam Pro, Battery | 3D Motion Detection, Two-Way Talk With Audio+, And Dual-Band Wifi (2022 Release) - White
Amazon.com
44
$39.99
Ring Alarm Window And Door Contact Sensor 2-Pack (2Nd Gen) In White | 4SD2SZ-0EN0
Lowe's
26K+
$39.99
Ring Alarm Window And Door Contact Sensor 2-Pack (2Nd Gen) In White | 4SD2SZ-0EN0
Lowe's
26K+
$21.79
Door Chime, METAK Wireless Door Open Contact Sensor Alarm With 500 ft Range, 58 Chimes And 5 Volume Levels For Business/Store/Home/Office When
Amazon.com
105
$21.79
Door Chime, METAK Wireless Door Open Contact Sensor Alarm With 500 ft Range, 58 Chimes And 5 Volume Levels For Business/Store/Home/Office When
Amazon.com
105
$67.29
Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter
Amazon.com
303
Free shipping
$67.29
Optex TD-20U Indoor/Outdoor Wireless Infrared Transmitter
Amazon.com
303
$49.99
Ring Alarm Outdoor Contact Sensor
Amazon.com
1K+
Free shipping
$49.99
Ring Alarm Outdoor Contact Sensor
Amazon.com
1K+
$96.03
Ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings - Smart Home - Compatible With Ecobee Smart Thermostats For Home
Amazon.com
6K+
Free shipping
$96.03
Ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings - Smart Home - Compatible With Ecobee Smart Thermostats For Home
Amazon.com
6K+
$12.99
WESUA Magnetic Switch Alarm Sensor Overhead Garage Door Contacts With L Bracket
Amazon.com
80
$12.99
WESUA Magnetic Switch Alarm Sensor Overhead Garage Door Contacts With L Bracket
Amazon.com
80
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    Shop half moon door contact sensor

    Sponsored
    $89.99
    Ring Alarm Contact Sensor 6-Pack (2Nd Gen)
    Amazon.com
    26K+
    Free shipping
    $89.99
    Ring Alarm Contact Sensor 6-Pack (2Nd Gen)
    Amazon.com
    26K+
    $237.92
    $339.92
    Simplisafe Home Security System DIY Starter
    SimpliSafe, Inc.
    Free shipping
    30% off
    $237.92
    $339.92
    Simplisafe Home Security System DIY Starter
    SimpliSafe, Inc.
    Free shipping
    $449.10
    $549.99
    Alarm Lock Trilogy - DL2700LD - Access Control Lever Set - Remote Release FOB & Classroom Lockdown - Satin Chrome - 26D
    UHS Store
    Free shipping
    18% off
    $449.10
    $549.99
    Alarm Lock Trilogy - DL2700LD - Access Control Lever Set - Remote Release FOB & Classroom Lockdown - Satin Chrome - 26D
    UHS Store
    Free shipping
    $94.00
    GE Edwards 1076CH-N Recessed Steel Door Contact With Wire Leads, 3/4" Diameter, Higher Security, Biased For Higher Security Applications, Single
    Keyless Access Locks
    $94.00
    GE Edwards 1076CH-N Recessed Steel Door Contact With Wire Leads, 3/4" Diameter, Higher Security, Biased For Higher Security Applications, Single
    Keyless Access Locks
    $69.46
    2507A-L Edwards Sentrol Magnetic Contact
    Valin Process Control Solutions
    $69.46
    2507A-L Edwards Sentrol Magnetic Contact
    Valin Process Control Solutions
    $39.99
    Ring Alarm Contact Sensor 2-Pack (2Nd Gen)
    Amazon.com
    26K+
    Free shipping
    $39.99
    Ring Alarm Contact Sensor 2-Pack (2Nd Gen)
    Amazon.com
    26K+
    $25.99
    Hxchen RC-35 NC & NO Wired Magnetic Door Window Contact Sensor Switch Contact Sensor Alarm Magnetic Reed Switch White - (5 Sets)
    Amazon.com
    36
    $25.99
    Hxchen RC-35 NC & NO Wired Magnetic Door Window Contact Sensor Switch Contact Sensor Alarm Magnetic Reed Switch White - (5 Sets)
    Amazon.com
    36
    $16.39
    5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, For DC 5V 12V 24V
    Amazon.com
    17
    $16.39
    5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, For DC 5V 12V 24V
    Amazon.com
    17
    $143.90
    Remote Door Chime With Infrared Motion Sensor
    Cstore1 - Official
    $143.90
    Remote Door Chime With Infrared Motion Sensor
    Cstore1 - Official
    $15.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    114
    $15.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    114
    $31.05
    1076CW-N Edwards Sentrol 3/4 in Steel Door Contact W/Wire Leads
    Valin Process Control Solutions
    $31.05
    1076CW-N Edwards Sentrol 3/4 in Steel Door Contact W/Wire Leads
    Valin Process Control Solutions
    $69.99
    Ring Alarm Glass Break Sensor - 2-Pack
    Amazon.com
    2K+
    Free shipping
    $69.99
    Ring Alarm Glass Break Sensor - 2-Pack
    Amazon.com
    2K+
    $19.99
    Ring Alarm Contact Sensor (2Nd Gen)
    Amazon.com
    27K+
    $19.99
    Ring Alarm Contact Sensor (2Nd Gen)
    Amazon.com
    27K+
    $43.03
    Magnetic Contact: Surface Mount, 2 in Lg, 11/16 in Dp, 3/8 in Ht Model: 2EXU5
    Grainger
    $43.03
    Magnetic Contact: Surface Mount, 2 in Lg, 11/16 in Dp, 3/8 in Ht Model: 2EXU5
    Grainger
    $20.89
    Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-Inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof
    Amazon.com
    217
    $20.89
    Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-Inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof
    Amazon.com
    217
    $78.35
    BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
    Amazon.com
    58
    Free shipping
    $78.35
    BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
    Amazon.com
    58
    $22.67
    Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap,
    Amazon.com
    100
    $22.67
    Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap,
    Amazon.com
    100
    $114.95
    Liftmaster CPS-U Commercial Photo Eye System, PR
    Amazon.com
    21
    Free shipping
    $114.95
    Liftmaster CPS-U Commercial Photo Eye System, PR
    Amazon.com
    21