Magnetic Reed Switches | Security Products
George Risk Industries' products are made in the USA. Many GRI switches are available closed loop, open loop, SPDT, DPDT. Standard gap, wide gap and extra wide gap along with built in end of line resistors. See spec sheets for details and part numbers.
Commercial and Industrial Switch Sets | High Security Switch Sets | Home and Commercial Electronic Devices | Liquid Detection Sensors | Low Voltage Raceways | Magnets | Overhead Door Magnetic Switch Sets | Pool Alarms | Pull Apart Magnetic Switch Sets | Recessed Magnetic Contacts | Resistors | Roller/Plunger/Tamper Switches | Special Purpose | Surface Mount Magnetic Contacts | Temperature and Humidity Variation Sensors |Additional Accessories
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Commercial and Industrial Switch Sets
- Industrial Surface Mount Switch Set: 400/410 and 410P Series GO
- Industrial Wide Gap Switch Set: 4400 Series GO
- Industrial Track Mount Switch Set: 4700-A Series GO
- Latch Type Overhead Door Surface Mount Switch Set: 4110 Series GO
- Miniature Aluminum Commercial Switch Set: 4460 Series GO
- Track and Gate Mounting Kits GO
High Security Switch Sets
Home and Commercial Electronic Devices
- Low Voltage Switching Device: LVSD, LEDSD GO
- Current Controller: Automatic AC Voltage Switching System, CC-01 GO
- Current Controller: Automatic DC Voltage Switching System, CC15 GO
- Door Alert Annunciator with Remote Sounders: DA Series GO
- Door Monitor: 290 Series GO
- Garage Door Monitor: DM-1 GO
- Power Transfer Device with Custom Lengths: BA-251 GO
- Programmable Relay Module: PRM-1 GO
- Timed Electronic Shunt; SB-2000 Series GO
Liquid Detection Sensors
- 12 Volt DC Water Sensor: Closed and Open Loop, 2600 Series GO
- 12 Volt DC Under Carpet Water Sensor: Closed and Open Loop, 2600T/2500s GO
- 5 Volt DC Water Sensor: Closed and Open Loop, 2605 and 2505 GO
- 24 Volt DC Water Sensor: Closed and Open Loop, 2624/2524 GO
- 24 Volt AC Water Sensor: SPDT, 2650 GO
- 5 Volt DC Water Sensor: Open Loop, 2800 GO
- Absence Of Water Sensor: 2808 Self Powered, 2800812V External Power GO
- Home Water Leak Alarm System: WS-20 GO
- Liquid Level Sensor for Use with Wireless Transmitters: 2826 and 2826FS GO
- Water Moccasin: 10’ Mesh Strip with extension options: WM2600-10 GO
- Water Valve Shutoff: WVs GO
Low Voltage Raceways
- E-Z Duct Raceway and Connectors: 3/8" x 3/8" mini, 5/8" x 1/2", 5/8" x 1 1/4" GO
- E-Z Duct Raceway Quarter Round and Connectors: 1" GO
Magnets
- Alnico V Bare Magnets GO
- Magnets in Cases GO
- Rare Earth Mighty Magnets GO
- Steel Door Channel Magnet: MC-180 GO
- Switch and Corresponding Magnet GO
- Window Channel Magnet: MC-25 GO
Overhead Door Magnetic Switch Sets
- Concealed Concrete Switch Set: 4510/4510AU Series GO
- Industrial Extended Gap Overhead Door Switch Set: 200WG/250WG Series GO
- Industrial Overhead Door Switch Set: 200 Series GO
- Industrial Track Mount Switch Set: 4700-A Series GO
- Mini Curtain Door Switch Set: 4612 Series GO
- Miniature Overhead Door Switch Set: 4532/4532L Series GO
Pool Alarms
- Child Resistant Pool Alarms: ETL Listed - 289CP Series GO
- DPARM: Closed Loop Pool Alarm, Battery Power and/or External Power Sources GO
- ETL Listed Pool Alarms Closed Loop: 289 Series GO
- ETL Listed Pool Alarms Open Loop: 189 Series GO
- Gate Mount Pool Alarms: GT10 Series GO
- Non-ETL Pool Alarm Closed Loop: 289N Series GO
- Non-ETL Pool Alarms Open Loop: 189N Series GO
- Pool Alarm Kits: Closed Loop, 289-4/DPA-10R GO
- Pool Alarm Remote Sounders, Buttons and Power Supplies GO
- UL Listed Pool Alarms: Closed Loop, DPA Series GO
Pull Apart Magnetic Switch Sets
Recessed Magnetic Contacts
- 1/4" Super Mini Switch Set: 50RS-12 Series GO
- 1/4" Switch Set: 50R-12/50RF-12 Series GO
- 3/8" Short Press Fit Switch Set: 20RS-12/20RS-T Series GO
- 3/8" Press Fit Switch Set: 2020-12/2020-T Series GO
- 3/8" Flanged Switch Set: 20F-12/20OF-12 Series GO
- 3/8" Ribbed Switch Set: 2120-12 Series GO
- 3/8" Wide Gap Switch Set: 5065 Series GO
- 3/8" Press Fit with Flat Magnet Switch Set: 5088/5088-T Series GO
- 1/2" Short Switch Set: 150RS-12/150RS-T Series GO
- 1/2" Switch Set: 150-12/150-T Series GO
- 3/4" Switch with 3/8" magnet Switch Set: 120T-12/4473 Series GO
- 3/4" and 1" Stubby Steel Door Switch Set: 180RS-12/8080RS-T Series GO
- 3/4" and 1" Steel Door Switch Set: 180-12/8080-T Series GO
- 3/4" and 1" Steel Door with Channel Magnet: 180MC-12/8080-TMC Series GO
- Rare Earth Mighty Magnet Series Switch Set GO
- Window Channel Magnet Series Switch Set GO
Resistors
- Magnetic Contacts with Built-in Resistors and Resistor Packs (wire lead and screw terminal) GO
Roller/Plunger/Tamper Switches
- 3/8" Tamper Switch: TS-20/TSC-20 Series GO
- 3/8" Plunger: PB-2020/PBF-2020 and PB-2020-T/PBF-2020-T Series GO
- 9/16" and 3/4" Push Button Plunger: PB-100/PB-100T and PBF-100/PBF-100T Series GO
- 3/4" Short Roller Ball: DS-01/DS-01T Series GO
- 3/4" Roller Ball: RB-01 Series GO
- Box Tamper with Shunt Option: TS-01/TSW-01 Series GO
Special Purpose
- ANSI Recessed Switch Set: 229 Series GO
- Call Button/Panic Switch: CB Series GO
- Concealed Contact Hinged Door Positioning Switch: DPS70R GO
- Current Sensor Series: CS-1, CS Series Switch Set View GO
- Dual Function Reed Switch Set: AA/AC Series GO
- Engraved Wall Plates / Remote Station Plates GO
- Glass Guard: On The Glass Shock Sensor: GB-550, GB-551 GO
- Hold Up Switch: HD-1 GO
- HVAC Kit (Copper Theft) GO
- HVACO Kit: Omni Directional GO
- Junction Boxes GO
- Nurse Call System: NC-20, NC-21 GO
- Power Supplies: GO
- Power Transfer Device: PTD-1 GO
- Power Transfer Device with Custom Lengths: BA-251 GO
- Quick Disconnect Cord: QDC-20 GO
- Remote Station Plates GO
- Service Repair Connector: SRC-12 GO
- Shockgard: Shock Sensor SG-1 GO
- Tilt Sensor: 4561 GO
- Tilt Sensor Omni Directional GO
- Tilt Sensor RoHS Compliant: 4561R GO
- Touch Sensor: CT3 Series GO
- Venting Switch Set; VS Series GO
- Window Bar Alarmed: WB-30-42 GO
- Wire Trip Switch: WT-01 GO
Surface Mount Magnetic Contacts
- 1/4" Miniature Surface Mount Switch Set: 50-12/50F-12/55F-12 Series GO
- Capped Miniature Surface Mount Switch Set: 700CL-12/700EL-12/700-T Series GO
- Micro Surface Mount Switch Set: 500/502 Series GO
- Miniature Surface Mount Switch Set: 110-12/110-T, 100-12/100-T Series GO
- Miniature Surface Mount Switch Set: 129 Series GO
- Super Miniature Brad Switch Set: 505 Series GO
- Surface Mount Switch Set: 1100 Series GO
- Surface Mount Switch Set: 28/29 and 29P Series GO
Temperature and Humidity Variation Sensors
- Humidity Sensor Programmable: H8800 On Board, H8800R Remote GO
- Temperature Sensor Programmable: T8800 On Board, T8800R Remote GO
- Temperature Sensors Fixed: 32F, 41F, 50F, 70F and 140F GO
Additional Accessories
GRI Lifetime Warranty
GRI's standard switches are made in the USA and come with a lifetime warranty against faulty workmanship, material and factory defects.
Our replacement policy is "Two For One" prior to installation. After installation, if the switch fails due to material defect or factory workmanship, we will issue a $10 credit when the switch is returned to the factory with the case intact for examination and determination of cause.
Replacement or the $10.00 credit does not cover failure due to physical abuse or contact freezing resulting from application of high voltage, lightning, transient surges or capacitor discharge through the contact.
We are proud of our products and are happy to answer any questions you may have. Contact Us
Custom Manufacturing and Imprinting Are Available
GRI offers custom manufacturing for situations where a standard product does not meet your needs. Switches with resistors and/or diodes built in and stand alone resistor packs, extra length leads, etc. can all be built to your specifications.
Private logos can be foil and heat stamped on products in white, gold, red, blue or green.
Please contact us online or call us at (800) 445-5218.
Industrial Track Mount Switch Sets
4700-A Series
- Reversible probe assembly
- Left or right installation
- Reversible cable exit
- 3 ft. armored cable standard
- Multi position adjustable magnet bracket
- Closed loop or SPDT
- Hinge design for tighter clamping to track
- Up to 3” gap
- Fits channels from 1.75” up to 4”
- Self drilling screws included for easy installation
- Contacts are on the channel and not where they can get damaged on the floor
- No special tools required for installation
The 4700 Series features contacts on the channel rather than on the floor where they can easily be damaged. This series is designed for commerical/industrial
use.