Magnetic Sensors
- $3.54SKU: SM-407-5TQ/W
Seco-Larm SM-407-5TQ/W 3/8" Screw-Terminal Recessed-Mount Magnetic Contact
- Used for protecting sliding doors and windows where space is limited
- Gold-plated terminals for longer expected life and reliability
- Screw terminals
- High-impact ABS plastic
- Miniature size for easier concealment
$3.54Low Price Guarantee - $121.00SKU: HS-L1.5-121
Magnasphere HS-L1.5-121 Surface Mount, Dual Alarm Contact
- Tested to 9th edition UL 634 Level 1 high security (both in-swing and out-swing doors)
- Made with Magnasphere switch technology
- Single and Dual alarm contacts
- No adjustment required for installation
- No brackets needed for most out-swing door installations
$121.00Low Price Guarantee - $4.13SKU: N25WGB-ST
Nascom N25WGB-ST Mini Stick on Switch / Magnet Set W1/4" x H1/4" x L1-1/4", End Wire Leads, Brown
- 12" 22AWG Wire Leads
- Encapsulated Hermetically Sealed Contacts
- Wide Gap - N35 NdFeB Rare Earth Magnet
- 3M VHB (Very High Bond) Double Sided Tape
- ABS Housings
$4.13Low Price Guarantee - $28.00SKU: BP33-A
United Security Products BP33-A Mini OHD Contact with Adjustable Magnet - 2.25" Gap
- Extra wide 2.25" gap
- Rugged aluminum construction
- Miniature 3.5" x 1.5" size
- Premium rhodium metal contacts
- Alnico 5 magnets
$28.00Low Price Guarantee - $2.93SKU: SM-200Q-BR
Seco-Larm SM-200Q-BR Surface Mount N.C. Magnetic Contact with Screw Terminals, Brown
- Surface-mounted contact for closed loop applications
- Screw terminals for quick installation
- Includes terminal cover (model SM-823Q)
- GAP: 3/4" (19mm)
- Dimensions: 2-1/2"x9/16"x1/2" (63.5x14x13 mm)
$2.93Low Price Guarantee - $4.58SKU: SM-4105-LQ/W
Seco-Larm SM-4105-LQ/W 3/4" Steel Door Recessed-Mount Magnetic Contact Switch, White
- Used for steel framed doors and windows where space is limited or to avoid unsightly installations
- Strong one-piece construction
- 18" (46cm) wire leads
- High-impact ABS plastic
- Switch and magnet have ribs for securing in holes
$4.58Low Price Guarantee - $88.75SKU: MSS-19CL-W
Magnasphere MSS-19CL-W 3/4" Recessed / Concealed Contact Open Loop, White, 10 Pack
- Made with Magnasphere Switch Technology
- Won™t break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$88.75Low Price Guarantee - was $106.95 Special Price $72.00SKU: SD-9773-KNEVQ
Seco-Larm SD-9773-KNEVQ Outdoor Wave-to-Open Sensors, Surface-Mount
- Outdoor Wave-to-Open Sensors
- Surface-Mount
was $106.95 Special Price $72.00Low Price Guarantee - $16.50SKU: MSS-K22-W
Magnasphere MSS-K22-W Surface Mount Contact Open Loop with Terminals, White
- Made with Magnasphere Switch Technology
- Won't break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$16.50Low Price Guarantee - $46.80SKU: 20RS-12-W
GRI 20RS-12-W Miniature Recessed Switch Set, 1/2" Gap Closed Loop, White
- Ideal for thin framed doors and windows
- Recessed magnetic contact
- Press to fit
- 12″ #22AWG leads or screw terminals
- Longer leads, zip cord or jacketed cable upon request
$46.80Low Price Guarantee - $26.22SKU: MSS-301C-WG-GREY
Magnasphere MSS-301C-WG-GREY 1" Recessed with 1 switch, 1 Closed Loop with Extended Reach Magnet (5/8" min gap) - Grey
- Multiple (2 or 3) individual contact outputs
- Available in closed and open loop configurations
- Available in 1" diameter recessed, and surface mount, armored cable version
- Cost competitive
- UL and ULC listed
$26.22Low Price Guarantee - $8.70SKU: NC1175TWUM-ST1KBD
Nascom NC1175TWUM-ST1KBD NC1175TUM White Set with 1K Resistor and A Blue Dot
- Press Fit - No Glue Required
- Encapsulated Hermetically Sealed Contacts
- Polypropylene Switch Housing
- Listed To UL634 Standard
- Wide Gap - N35 NdFeB Rare Earth Magnet
$8.70Low Price Guarantee - $3.36SKU: SM-431-TQ/W
Seco-Larm SM-431-TQ/W Screw-Terminal Surface-Mount Magnetic Contacts, White
- Miniature surface-mount magnetic contacts
- Screw mount using side tabs or break off tabs for adhesive mount
- Gold-plated screw terminals for longer expected life and reliability
- Tape to cover screw terminals included
- 1" (25mm) Gap
$3.36Low Price Guarantee - $16.07SKU: SM-226RQ
Seco-Larm SM-226RQ Overhead Door-Mount N.C. Magnetic Contact
- Switch contained in curved, low-profile, cast-aluminum housing
- Magnet enclosed in round bracket
- 24" (61cm) Wire leads enclosed in stainless-steel cable
- 2-3/4" (70mm) Gap
- Switch dimensions: 4-3/8"x1-3/4"x7/16" (111x44x11 mm)
$16.07Low Price Guarantee - $33.74SKU: ISN-CSD70-W
Radionix by Bosch ISN-CSD70-W 3/4" White Stubby Recessed Contact - 10pk
- Closed loop
- Sensitive non-stick rhodium reed
- Bent long leads keep solder off the glass of the reed
- Two solder points on the wire
- Thick plastic shell resists crushing
$33.74Low Price Guarantee - $15.44SKU: N78B-STSD
Nascom N78B-STSD Recessed 1" PTF SPDT Switch/Magnet Set for Steel/Wood Doors, Wire Leads
- Recessed 1" PTF SPDT Switch/Magnet Set for Steel/Wood Doors
- Wire Leads
$15.44Low Price Guarantee - $10.89SKU: 240-8
United Security Products 240-8 240 Twist LOC with 0.4mm Rare Earth Magnet
- 0.6 Inch Gap
- Size 1/4″ x 1/2″
- Closed Circuit
- 24″ Leads
- 0.4″ diameter disc magnet
$10.89Low Price Guarantee - $10.57SKU: 142-SP
United Security Products 142-SP Wide Gap 3/8" Press Fit Contact, SPDT 0.70" Gap
- Wide gap 3/8" press fit contact
- SPDT - 0.70" gap
$10.57Low Price Guarantee - $7.32SKU: 150-SP
United Security Products 150-SP 3/8" x 3/5" Stubby Press Fit Contact, CC
- 3/8″ x 1/2″ Stubby Press Fit
- 0.50 Inch Gap
- Rhodium Contacts
- Pre-Wired 24″ Inch Leads
- Powerful Rare Earth Magnet
$7.32Low Price Guarantee - $7.18SKU: 130-SP
United Security Products 130-SP Wide Gap Mini Stick-on Contact 1.0' Gap - CC
- 1" SP Wide Gap Performance
- Rhodium Contacts
- Self-Adhesive or Screw Mounting
- Ideal for Sliding Doors and Windows
- Break-away Flange
$7.18Low Price Guarantee - $4.85SKU: N25WGSW-SW1K
Nascom N25WGSW-SW1K Mini Rectangular Stick On Closed Loop Switch Only with 1K Res In Ser, Wire Leads
- Mini Rectangular Stick On Closed Loop Switch Only
- 1K Res In Ser
- Wire Leads
$4.85Low Price Guarantee - $320.00SKU: HS-1452-L1-5-111
Magnasphere HS-1452-L1-5-111 Roll Up Door Bracket with HS L1.5 Pre-Mounted, Right Side
- Roll Up Door Bracket with HS L1.5 Pre-Mounted
- Right Side
- Specify HS L1.5 P/N Required
$320.00Low Price Guarantee - $18.39SKU: MSS-89SL-W
Magnasphere MSS-89SL-W Surface Mount Contact Open Loop with 12" Jacketed Leads, White
- Made with Magnasphere Switch Technology
- Won't break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$18.39Low Price Guarantee - $7.07SKU: A1-D
United Security Products A1-D Arrowhead "Load and Lock" 3/8" Contact with Disc Magnet
- CC
- Up to 3/4″ Gap
- No More Silicone or Glue!
- Self thread into 3/8″ drilled wood
- One Turn Locks in Place, One Turn Removes For Tests
$7.07Low Price Guarantee - $5.39SKU: BP54
United Security Products BP54 3/8" Short Switch - Long Magnet, CC
- .75″ Gap
- 3/8″ x 3/4″ Stubby Press Fit
- With Long Magnet 3/8″ x 1-3/8″
- Rhodium Metal Contacts
- Rare Earth Magnets
$5.39Low Price Guarantee - $49.89SKU: MSS-312C-GREY
Magnasphere MSS-312C-GREY 1" Recessed with 3 Switches, 2 Closed Loop, 1 Open Loop - Grey
- Multiple (2 or 3) individual contact outputs
- Available in closed and open loop configurations
- Available in 1" diameter recessed, and surface mount, armored cable version
- Cost competitive
- UL and ULC listed
$49.89Low Price Guarantee - $46.24SKU: B200-36
GRI B200-36 Biased High Security Switch Sets Overview
- Biased high security in a variety of switch case styles
- 12″ leads #22AWG
- Jacketed or armored cable on industrial switches
- Longer leads, zip cord or jacketed cable upon request
- Mounting hardware included
$46.24Low Price Guarantee - $4.71SKU: N75B-ST
Nascom N75B-ST Recessed 3/8" Press Fit Switch / Magnet Set, Wire Leads, Brown
- Press Fit - No Glue Required
- Encapsulated Hermetically Sealed Contacts
- 12" 22AWG Wire Lead
- Polypropylene housings
- Wide Gap - N35 NdFeB Rare Earth Magnet
$4.71Low Price Guarantee - $3.90SKU: SM-200Q-W
Seco-Larm SM-200Q-W Surface-Mount N.C. Magnetic Contact with Screw Terminals, White
- Surface-mounted contact for closed loop applications
- Screw terminals for quick installation
- Includes terminal cover (model SM-823Q)
- GAP: 3/4" (19mm)
- Dimensions: 2-1/2"x9/16"x1/2" (63.5x14x13 mm)
$3.90Low Price Guarantee - $187.00SKU: HS-OHD-111
Magnasphere HS-OHD-111 HS-L1.5-111 Mounted to HS-1271 OHD Rail Mount Bracket
- HS-L1.5-111 ( 2 closed Loop contacts (N.C, no resistors) with pry tamper closed loop)
- Mounted to HS-1271 OHD rail mount bracket
$187.00Low Price Guarantee - $511.00SKU: HSS-1450-L2S-000
Magnasphere HSS-1450-L2S-000 Roll Up Door Bracket with HSS L2 Pre-Mounted, Right Side
- Intrinsically Safe, Simple Apparatus (see page 3)
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$511.00Low Price Guarantee - $511.00SKU: HSS-1451-L2S-000
Magnasphere HSS-1451-L2S-000 Roll Up Door Bracket with HSS L2 Pre-Mounted, Left Side
- Intrinsically Safe, Simple Apparatus (see page 3)
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$511.00Low Price Guarantee - $412.30SKU: HSS-1671-L2S-001
Magnasphere HSS-1671-L2S-001 Overhead Door Bracket with HSS L2 Pre-Mounted, Left Side
- Overhead Door Bracket with HSS L2 Pre-Mounted
- Left Side
- Specify HSS P/N Required with Embedded EOL Resistors
$412.30Low Price Guarantee - $398.00SKU: HSS-1671-L2S-000
Magnasphere HSS-1671-L2S-000 Overhead Door Bracket with HSS L2 Pre-Mounted, Left Side
- Overhead Door Bracket with HSS L2 Pre-Mounted
- Left Side
- Specify HSS P/N Required without Embedded EOL Resistors
$398.00Low Price Guarantee - $398.00SKU: HSS-1670-L2S-000
Magnasphere HSS-1670-L2S-000 Overhead Door Bracket with HSS L2 Pre-Mounted, Right Side
- Overhead Door Bracket with HSS L2 Pre-Mounted
- Right Side
- Specify HSS P/N Required without Embedded EOL Resistors
$398.00Low Price Guarantee - $382.48SKU: MSS-20CL-RS1P1-W
Magnasphere MSS-20CL-RS1P1-W 3/4" Recessed / Concealed Magnetic Door Contact Closed Loop, White, 10 Pack
- Made with Magnasphere Switch Technology
- Won't break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$382.48Low Price Guarantee - $369.00SKU: HSS-L2D-802
Magnasphere HSS-L2D-802 Dual Alarm Contacts with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$369.00Low Price Guarantee - $369.00SKU: HSS-L2D-803
Magnasphere HSS-L2D-803 Dual Alarm Contacts with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$369.00Low Price Guarantee - $363.00SKU: HSS-L2S-801
Magnasphere HSS-L2S-801 Single Alarm Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$363.00Low Price Guarantee - $363.00SKU: HSS-L2S-817
Magnasphere HSS-L2S-817 Single Alarm Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation
$363.00Low Price Guarantee - $345.78SKU: 110-T-B-GEN
GRI 110-T-B-GEN Miniature Surface Mount Switch Set, 1" Gap Closed Loop, Brown
- Miniature profile series is perfect for residential and light commercial applications
- Surface mount magnetic contact
- Screw down flange or self stick
- 12″ #22AWG leads or screw terminals
- Longer leads, zip cord or jacketed cable upon request
$345.78Low Price Guarantee - $337.00SKU: HSS-L2D-001
Magnasphere HSS-L2D-001 Dual Alarm, Surface Mount Contact Both Closed Loop with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $337.00SKU: HSS-L2D-003
Magnasphere HSS-L2D-003 Dual Alarm, Surface Mount Contact Both Closed Loop with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $337.00SKU: HSS-L2D-014
Magnasphere HSS-L2D-014 Dual Alarm, Surface Mount Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $337.00SKU: HSS-L2D-011
Magnasphere HSS-L2D-011 Dual Alarm, Surface Mount Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $337.00SKU: HSS-L2D-012
Magnasphere HSS-L2D-012 Dual Alarm, Surface Mount Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $337.00SKU: HSS-L2D-015
Magnasphere HSS-L2D-015 Dual Alarm, Surface Mount Contact with Tamper Circuit, Closed Loop
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Replacement for existing BMS devices
- No adjustment required for installation
- Industry's most secure removal tamper sensor/circuit
$337.00Low Price Guarantee - $336.00SKU: HS-1453-L1-5-111
Magnasphere HS-1453-L1-5-111 Roll Up Door Bracket with HS L1.5 Pre-Mounted, Left Side
- Roll Up Door Bracket with HS L1.5 Pre-Mounted
- Left Side
- Specify HS L1.5 P/N Required
$336.00Low Price Guarantee - $331.00SKU: HSS-L2S-001
Magnasphere HSS-L2S-001 Single Alarm Contact With Tamper Circuit, Closed Loop
- Resistant to External and Internal magnetic defeat
- Built-in EOL resistors available
- Unique cross hole mounting feature eliminates need for L and Z brackets on most installations
- Retro-fit for existing BMS devices
- No adjustment required for installation
$331.00Low Price Guarantee - $331.00SKU: HSS-L2S-003
Magnasphere HSS-L2S-003 Single Alarm Contact With Tamper Circuit, Closed Loop
- Resistant to External and Internal magnetic defeat
- Built-in EOL resistors available
- Unique cross hole mounting feature eliminates need for L and Z brackets on most installations
- Retro-fit for existing BMS devices
- No adjustment required for installation
$331.00Low Price Guarantee
Filter
Shopping Options
