Nascom - N505AUTM/ST - Overhead Door Rail (2-1/4") Mount Magnet/Switch Set Featuring No Dead Spot

$27.29

Nascom - N205AU/ST - Overhead Door Standard Switch with Universal Magnet Featuring No Dead Spot Technology

$30

GAGALOR 2 Sets NO&NC Magnetic Switch Door Contact Sensor Surface Mounted

$90.16

weideer 2pcs MC-31B Magnetic Reed Switch Wired Surface Mount Normally Open Closed NC NO Door Contact Sensor Alarm Magnetic Door Switch Black

$14.94

MC-32 NC Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White (5 Sets)

$21.99

BNYZWOT MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 10pcs

$15.59

Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 10pcs

$15.69

BNYZWOT MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 10 Pair

$11.99

Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair

$7.59

QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 5 with 20 Screws

$19.79

Flair Electronics Overhead Door Contact, L-Bracket Magnet, VIP1000-98L

$8.39

PATIKIL Magnetic Reed Switch, 4 Pack NO Wired Surface-Mounted Magnetic Contact Switch for Door Window, Black

$7.99

bnafes MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch 2 Sets

$14.99

Magnetic Reed Switch MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - (6 Sets)

$7.59

Seco-Larm SM-4601-L3Q Industrial Wide-Gap Magnetic Contact Switches, 3" Operation Gap NO/NC, Open/Closed Loop (3 Wires)

$8.89

Augiimor 2PCS RC-35 NC & NO Wired Magnetic Door Window Contact Sensor Security Alarm Door Window Contact Sensor Magnetic Reed Switch (White)

$7.99

GDQLCNXB 2 Sets MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch

$12.99

Nascom - N707AU/ST - Ul2 High Security BMS Contact and Standard Magnet Set

$20

Seco-Larm SM-4601-L3Q Pack of 2 Industrial Wide-Gap Magnetic Contact Switches, 3" Operation Gap NO/NC, Open/Closed Loop (3 Wires)

$14.94

Hxchen MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch - (5 Sets)

$17.59

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

$9.99

Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System

$9.99

Crispaire 36'' Air Curtain Magnetic Door Switch Included 2 Speeds 2559FPM/1527CFM Uncooled & Unheated Super Power Commercial Indoor Easy-Install Industrial 110V (36''-Door Switch)

$254.99

YXQ 3 Sets MC-31B Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security

$15.99

bnafes 4Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device

$9.99

Magnetic Reed Switch MC-31 NC Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 2

$9.99

MC-31B NC/NO Magnetic Reed Switch Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Systems, Sets of 10, Black

$9.99

Hardware Essentials 852742 Aluminum Non-Magnetic, Screw-in, Door Kick Plate 6" x 30" Satin Nickel Finish ​​

$38.95

Magnetic Reed Switch MC-32 NC Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 2

$14.94

PATIKIL Magnetic Reed Switch, 10 Pack NC Wired Recessed Door Sensor Window Contact Switch for Alarm System, Black

$9.99

VictorsHome Magnetic Reed Switch NC NO COM Surface Mount Wired Door Window Contact Sensor with Cover for Home Security and Burglar Alarm Systems MC-31 5pcs

$7.99

XtremeAmazing Rear Door Side Panel Check Magnet for W906 Sprinter 2500 3500

$49.9

3X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V Light

$19.87

10 Sets MC-31B Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security

$9.99

Rectorseal 96100 Magnetic Float Switch, Tan

$228.79

Door Supply 1Kxs Keyswitch,Surface Mount,Nema Rating 4

$317.03

Hoshizaki 3A1826-01 Door Switch

$482.49

WEN Magnetic Base for Dial Indicators, Three Segment, Industrial Strength with Quick Release (10714)

$90.12

Hardware Essentials 852745 Aluminum Non-Magnetic, Screw-In, Door Kick Plate 8" x 34" Satin Nickel Finish

$11.69

Rectorseal 96106 Magnetic Float Switch, One Size, Tan

$15.61

BokWin 5 Pcs Mico Magnetic Reed Switch Magnetic Door Window Sensor Switch Magnetic Contact Switch (Normally Close)

$7.89

MC-32 NC Magnetic Reed Switch Surface Mount Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Systems, Sets of 10, White

$8.99

2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch, DC 5Vto12V Light (Black)

$9.99

Magnetic Reed Switch RC-35 NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 6

$7.89

DKARDU 2 pcs DC5-30V NJK-5002C Hall Sensor Hall Effect Switch Proximity Sensor NPN 3-Wires Normally Open with Magnet Proximity Switch Bracket M12

$8.99

Edwards Signaling 1504-AQN5 Electromagnetic Door Holder Flush Wall Mount

$25.99

Mpmedo Magnetic Screen Door Upgraded-Model Full Strip Magnets,Heavy Duty Mesh,Retractable Door Screen Magnetic Closure for Single Front Sliding Door

$9.99

Bettomshin Key Switch Lock On/Off Exit Switch Stainless Steel Emergency Door Release SPST Access Control Panel Mount with 2 Keys for S40K Silver Model 1Pcs

$46.13

Magnetic Reed Switch RC-36 NC Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 2

$5.99

Hardware Essentials 852737 Aluminum Non-Magnetic, Screw-in, Door Kick Plate 8" x 34" Anodized Aluminum Finish ​​

$27.85

Noga NF6150 | Combo NF61003 Magnetic Base 70lb Hold & Metric Test Indicator Set

$13.9

Fielect S70K Key Switch Lock On/Off Exit Switch Emergency Door Release SPST for Access Control Panel Mount with 2 Keys 52 * 36mm 1pcs

$13.44

Keenkee 4 Pack Magnetic Cabinet Door Catch with Neodymium Magnet Cabinet Latch Magnetic Closure Hardware for Kitchen Cupboard and Closet Door Closing, Black Tone Gun Metal

$6.99

2PCS DC5-30V NJK-5002C 10mm Hall Effect Switch Proximity Sensor Inductive Switch NPN NO (Normally Open)

$9.99

CZMAG Magnets Reed Switch,10pcs Plastic Contact Normally Closed Magnetic Reed Switch Drop-Proof and Anti-Interference(N/C)

$8.99

Magnetic Reed Switch RC-36 NC Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5 (White)

$8.29

VictorsHome Magnetic Reed Switch NC NO COM Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs

$17.99

HFS(R) Magnetic Base Indicator Back Holder for AGD2 1"Dial Indicator - Easy to Install and Use

$84.95

Red Cast Alnico 5 Bridge Magnet With Keeper, 1.57" Wide, 1" High, 1" Thick, 0.20" Hole On Top (Pack of 1)

$12.59

Twidec/10mm Hall Effect Proximity Sensor Inductive Switch NPN NO（Normally Open) with Magnet DC5-30V NJK-5002C

$11.99