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Magnetic Contacts

Magnetic Contacts provide reliable door and window sensing for intrusion detection, access control, and perimeter monitoring. This collection includes wired and wireless door/window sensors, reed switches, and tamper-resistant models that deliver consistent detection, low false alarms, and easy installation. Ideal for residential, commercial, and industrial projects, these security sensors enhance system reliability and simplify integration with alarm panels and monitoring services.

1,828 Items
GRI 4612 Mini Curtain Door Switch Set, up to 2" Gap, Reversible Probe Assembly, Closed Loop and 3' Armored Cable Standard
George Risk Industries
GRI 4612 Mini Curtain Door Switch Set, up to 2" Gap, Reversible Probe Assembly, Closed Loop and 3' Armored Cable Standard
4612
In Stock
$42.94
GRI 4700A Industrial Track Mount Switch Set, 1.75" to 2.75" Track Size, up to 3" Gap, Reversible Probe Assembly, Closed Loop, Reversible Probe Assembly and 3' Armored Cable Standard
George Risk Industries
GRI 4700A Industrial Track Mount Switch Set, 1.75" to 2.75" Track Size, up to 3" Gap, Reversible Probe Assembly, Closed Loop, Reversible Probe Assembly and 3' Armored Cable Standard
4700A
In Stock
$61.82
GRI 4700-AXL Industrial Track Mount Switch Set, 2.5" to 4" Track Size, up to 3" Gap, Reversible Probe Assembly, Closed Loop, Reversible Probe Assembly and 3' Armored Cable Standard,
George Risk Industries
GRI 4700-AXL Industrial Track Mount Switch Set, 2.5" to 4" Track Size, up to 3" Gap, Reversible Probe Assembly, Closed Loop, Reversible Probe Assembly and 3' Armored Cable Standard,
4700-AXL
In Stock
$71.68
GRI 4704-A-72 Surface Mount Pull Apartment 6' Arm Cable with Form Reed
George Risk Industries
GRI 4704-A-72 Surface Mount Pull Apartment 6' Arm Cable with Form Reed
4704-A-72
In Stock
$58.46
GRI 4704-A Special Purpose Surface Mount Pull Apart Switch Set, 5W, 175VDC, 0.25A, SPDT, and 3' Armored Cable
George Risk Industries
GRI 4704-A Special Purpose Surface Mount Pull Apart Switch Set, 5W, 175VDC, 0.25A, SPDT, and 3' Armored Cable
4704-A
In Stock
$35.20
GRI 4714JC Surface Mount Pull Apart Switch Set Jacketed with Chain Lead
George Risk Industries
GRI 4714JC Surface Mount Pull Apart Switch Set Jacketed with Chain Lead
4714JC
In Stock
$46.40
GRI 4834-T-B-GEN 3/8" Recessed Stubby Switch Set, Browm
George Risk Industries
GRI 4834-T-B-GEN 3/8" Recessed Stubby Switch Set, Browm
4834-T-B-GEN
In Stock
$3.34
GRI 500-B Micro Surface Mount Magnetic Contact, Brown
George Risk Industries
GRI 500-B Micro Surface Mount Magnetic Contact, Brown
500-B
In Stock
$4.40
GRI 5065 3/8" One Inch Gap Recessed Switch Set, Closed Loop, Reed Form, 10W
George Risk Industries
GRI 5065 3/8" One Inch Gap Recessed Switch Set, Closed Loop, Reed Form, 10W
5065
In Stock
$2.84
GRI 50F-12WG 1/2" Miniature Surface Mount Switch Set, Wide Gap 3/4"+, Closed Loop, Reed Form, 10W, Breakaway Flanges, White
George Risk Industries
GRI 50F-12WG 1/2" Miniature Surface Mount Switch Set, Wide Gap 3/4"+, Closed Loop, Reed Form, 10W, Breakaway Flanges, White
50F-12WG-W-BA
In Stock
$4.62
GRI 50F-12WG-B-BA 1-1/2" Miniature Surface Mount Switch Set, Wide Gap 3/4"+, Closed Loop, Reed Form, 10W, Breakaway Flanges, Brown
George Risk Industries
GRI 50F-12WG-B-BA 1-1/2" Miniature Surface Mount Switch Set, Wide Gap 3/4"+, Closed Loop, Reed Form, 10W, Breakaway Flanges, Brown
50F-12WG-B-BA
In Stock
$4.63
GRI 50RF-12-W 1/4" Recessed Flanged Switch Sets, 1/2" Standard Gap, 10W, 200VDC, 0.50A, Closed Loop, N/O, and 12" 22AWG Leads, White
George Risk Industries
GRI 50RF-12-W 1/4" Recessed Flanged Switch Sets, 1/2" Standard Gap, 10W, 200VDC, 0.50A, Closed Loop, N/O, and 12" 22AWG Leads, White
50RF-12-W
In Stock
$3.53
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