购买 Door Detection Using Reed Switch

赞助
$251.00
RFID Safety Sensor Schmersal RSS36-D-ST - 101213954, Safety Sensor, RFID, Output: 2 X NC, Standard Coding, Diagnostic Output
Automation24, Inc.
$251.00
RFID Safety Sensor Schmersal RSS36-D-ST - 101213954, Safety Sensor, RFID, Output: 2 X NC, Standard Coding, Diagnostic Output
Automation24, Inc.
$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
$15.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
$15.99
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
Amazon.com
$81.60
GE Security 1076H-N Recessed Steel Door Contact (White)
Keyless Access Locks
$81.60
GE Security 1076H-N Recessed Steel Door Contact (White)
Keyless Access Locks
$14.99
Victorshome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor For Home Security And Burglar Alarm Systems 5 Pcs
Amazon.com
$14.99
Victorshome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor For Home Security And Burglar Alarm Systems 5 Pcs
Amazon.com
$275.00
$302.50
BEA Falcon Gate And Garage Door Motion Detector 10FALCON
North Shore Commercial Door
$275.00
$302.50
BEA Falcon Gate And Garage Door Motion Detector 10FALCON
North Shore Commercial Door
$14.99
Simplisafe Entry Sensor - Window And Door Protection - Compatible With Gen 3 Home Security System
Amazon.com
3 千+
$14.99
Simplisafe Entry Sensor - Window And Door Protection - Compatible With Gen 3 Home Security System
Amazon.com
$86.00
Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits Or Entries Through Emergency
Amazon.com
Free shipping
$86.00
Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits Or Entries Through Emergency
Amazon.com
$16.99
EPLZON Magnetic Reed Switch Normally Open And Normally Closed NC NO Magnetic Proximity Switch For Door Alarm, Window Safety, DC 5V 12V 24V Light GPS
Amazon.com
30
$16.99
EPLZON Magnetic Reed Switch Normally Open And Normally Closed NC NO Magnetic Proximity Switch For Door Alarm, Window Safety, DC 5V 12V 24V Light GPS
Amazon.com
$99.00
Gas Leak Detector | Natural Gas & Propane
Forensics Detectors
$99.00
Gas Leak Detector | Natural Gas & Propane
Forensics Detectors
$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
$10.25
Honeywell Ademco 7939WG-BR Surface Mount Contact, Brown
JMAC
90-day returns (most items)
$10.25
Honeywell Ademco 7939WG-BR Surface Mount Contact, Brown
JMAC
$7.32
Uxcell 2Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$7.32
Uxcell 2Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$13.49
3Pcs Mc-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White
Walmart
Free shipping
$13.49
3Pcs Mc-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White
Walmart
$13.54
3Pcs Rc-33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
Walmart
Free shipping
$13.54
3Pcs Rc-33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
Walmart
$10.94
Uxcell 5Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
30-day returns (most items)
$10.94
Uxcell 5Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$6.59
Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
harfington
$6.59
Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
harfington
$19.99
GAGALOR NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor For Roller Shutter With Adjustable Bracket
Amazon.com
$19.99
GAGALOR NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor For Roller Shutter With Adjustable Bracket
Amazon.com
$27.79
Door Chime, Door Sensor Chime For Door Opens - Door Ringer With 500ft Operating Range 52 Chime Adjustable Volume Mute Mode LED Indicators -Entry
Amazon.com
155
$27.79
Door Chime, Door Sensor Chime For Door Opens - Door Ringer With 500ft Operating Range 52 Chime Adjustable Volume Mute Mode LED Indicators -Entry
Amazon.com
$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
1 千+
$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
$6.19
Uxcell RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
harfington
$6.19
Uxcell RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
harfington
$15.69
10Pcs Rc-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch
Walmart
Free shipping
$15.69
10Pcs Rc-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch
Walmart
$7.13
Mc-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White
Walmart
Free shipping
30-day returns
$7.13
Mc-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White
Walmart
$9.79
Magnetic Reed Switch, 2 Pack NO NC Door Sensor Window Contact Switch, White | Harfington
harfington
$9.79
Magnetic Reed Switch, 2 Pack NO NC Door Sensor Window Contact Switch, White | Harfington
harfington
$12.57
1078CT-N Edwards Sentrol 3/4 in Steel Door Contact W/Terminals
Valin Process Control Solutions
$12.57
1078CT-N Edwards Sentrol 3/4 in Steel Door Contact W/Terminals
Valin Process Control Solutions
$79.87
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
Free shipping
$79.87
BOSCH SECURITY VIDEO DS150I Motion Sensor (NA)
Amazon.com
$9.57
Mc-31 Surface Mount Wired No+Nc Door Sensor Alarm Magnetic Reed Switch White
Walmart
Free shipping
30-day returns
$9.57
Mc-31 Surface Mount Wired No+Nc Door Sensor Alarm Magnetic Reed Switch White
Walmart
$194.00
Detex EAX-300 Gray EAX-300 Exit Alarm Battery Powered Door Propped Alarm
Amazon.com
18
Free shipping
$194.00
Detex EAX-300 Gray EAX-300 Exit Alarm Battery Powered Door Propped Alarm
Amazon.com
$16.76
Magnetic Reed Switch, 10 Pack NC Door Sensor Window Contact Switch, White | Harfington
harfington
$16.76
Magnetic Reed Switch, 10 Pack NC Door Sensor Window Contact Switch, White | Harfington
harfington
$6.18
Uxcell RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$6.18
Uxcell RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$7.27
Magnetic Reed Switch, 1 Set NO NC Wired Door Window Contact Switch For Home | Harfington
harfington
$7.27
Magnetic Reed Switch, 1 Set NO NC Wired Door Window Contact Switch For Home | Harfington
harfington
$7.93
Uxcell RC-36 NO Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$7.93
Uxcell RC-36 NO Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$6.29
Uxcell Home Wired Alarm Security Magnetic Door Contact Reed Sensor Switch White 2 Sets | Harfington
harfington
$6.29
Uxcell Home Wired Alarm Security Magnetic Door Contact Reed Sensor Switch White 2 Sets | Harfington
harfington
$6.94
Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
20
$6.94
Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
harfington
$7.99
Uxcell Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Black | Harfington
harfington
30-day returns (most items)
$7.99
Uxcell Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Black | Harfington
harfington
$88.94
Honeywell Ademco 6151
JMAC
$88.94
Honeywell Ademco 6151
JMAC
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    购买 Door Detection Using Reed Switch

    赞助
    $251.00
    RFID Safety Sensor Schmersal RSS36-D-ST - 101213954, Safety Sensor, RFID, Output: 2 X NC, Standard Coding, Diagnostic Output
    Automation24, Inc.
    $251.00
    RFID Safety Sensor Schmersal RSS36-D-ST - 101213954, Safety Sensor, RFID, Output: 2 X NC, Standard Coding, Diagnostic Output
    Automation24, Inc.
    $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
    $15.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    $15.99
    Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC With Adjustable Bracket
    Amazon.com
    $81.60
    GE Security 1076H-N Recessed Steel Door Contact (White)
    Keyless Access Locks
    $81.60
    GE Security 1076H-N Recessed Steel Door Contact (White)
    Keyless Access Locks
    $14.99
    Victorshome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor For Home Security And Burglar Alarm Systems 5 Pcs
    Amazon.com
    $14.99
    Victorshome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor For Home Security And Burglar Alarm Systems 5 Pcs
    Amazon.com
    $275.00
    $302.50
    BEA Falcon Gate And Garage Door Motion Detector 10FALCON
    North Shore Commercial Door
    $275.00
    $302.50
    BEA Falcon Gate And Garage Door Motion Detector 10FALCON
    North Shore Commercial Door
    $14.99
    Simplisafe Entry Sensor - Window And Door Protection - Compatible With Gen 3 Home Security System
    Amazon.com
    3 千+
    $14.99
    Simplisafe Entry Sensor - Window And Door Protection - Compatible With Gen 3 Home Security System
    Amazon.com
    $86.00
    Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits Or Entries Through Emergency
    Amazon.com
    Free shipping
    $86.00
    Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits Or Entries Through Emergency
    Amazon.com
    $16.99
    EPLZON Magnetic Reed Switch Normally Open And Normally Closed NC NO Magnetic Proximity Switch For Door Alarm, Window Safety, DC 5V 12V 24V Light GPS
    Amazon.com
    30
    $16.99
    EPLZON Magnetic Reed Switch Normally Open And Normally Closed NC NO Magnetic Proximity Switch For Door Alarm, Window Safety, DC 5V 12V 24V Light GPS
    Amazon.com
    $99.00
    Gas Leak Detector | Natural Gas & Propane
    Forensics Detectors
    $99.00
    Gas Leak Detector | Natural Gas & Propane
    Forensics Detectors
    $10.25
    Honeywell Ademco 7939WG-BR Surface Mount Contact, Brown
    JMAC
    15
    90-day returns (most items)
    $10.25
    Honeywell Ademco 7939WG-BR Surface Mount Contact, Brown
    JMAC
    $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
    $7.32
    Uxcell 2Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
    harfington
    $7.32
    Uxcell 2Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
    harfington
    $13.49
    3Pcs Mc-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White
    Walmart
    Free shipping
    $13.49
    3Pcs Mc-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White
    Walmart
    $13.54
    3Pcs Rc-33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
    Walmart
    Free shipping
    $13.54
    3Pcs Rc-33 NO Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
    Walmart
    $10.94
    Uxcell 5Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
    harfington
    30-day returns (most items)
    $10.94
    Uxcell 5Pcs RC-36 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch Brown | Harfington
    harfington
    $6.59
    Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
    harfington
    $6.59
    Uxcell 2Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White | Harfington
    harfington
    $19.99
    GAGALOR NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor For Roller Shutter With Adjustable Bracket
    Amazon.com
    $19.99
    GAGALOR NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor For Roller Shutter With Adjustable Bracket
    Amazon.com