
Quality Manufacturer of Home and Commercial Security Devices
George Risk Industries designs and manufactures magnetic reed switches as well as keyboards, keypads, push button and keyboard switches, proximity sensors and engraved keycaps. Our products are sold through a network distributors worldwide.
The security industry recognizes George Risk Industries as a quality manufacturer of door and window contact switches, environmental products, proximity switches and custom keyboards for the security industry. GRI's security products are used in alarm system installations in the residential, commercial, industrial, and government sectors.
GRI's other products such as keyboards, keypads, push button and keyboard switches, proximity sensors and engraved keycaps have industrial, manufacturing, transportation and agricultural applications.


Commercial and Industrial
Switch Sets
GRI's standard switches are made in the USA and come with a lifetime warranty against faulty workmanship, material and factory defects.
Primus Cable Part # | Top Seller | Description |
400 | 400 Series Industrial Surface Mount Switch Set, Standard Gap Up To 1 1/2”, Wide gap up to 3" | |
4400 | 4400 Series Industrial Surface Mount Switch Sets, Standard Gap Up To 2 1/2"+, DPDT Gap Up To 2 1/2" | |
4700-A | 4700-A Series Industrial Track Mount Switch Set, Track Size: 1.75"-2.75", Up to 3" Gap | |
4110 | 4110/4482 Series Commercial Overhead Door Surface Mount Switch Set, | |
4460 | 4460 Series Miniature Aluminum Commercial Surface Mount Switch Set, Standard Gap 1” or 3/4”+ |

High Security
Switch Sets
These switches were manufactured to provide a higer security supporting a range of industries such as automotive, aviation, medical equipment, communications, beauty appliances and domestic appliances but are not limited to just these industries.
Primus Cable Part # | Top Seller | Description |
B200-36 | Biased for High Security Switch Set, Supervisory Loops Upon Request | |
MS20RS-12 | MS20RS-12/MS20RS-T Series Magnasphere Miniature 3/8” Recessed Switch Set, Longer Leads, Zip Cord or Jacketed Cable Upon Request, Closed Loop | |
MS2020S-12 | MS2020-12/MS2020-T Series Magnasphere 3/8” Recessed Switch Set, Longer Leads, Zip Cord or Jacketed Cable Upon Request, Closed Loop | |
MS20F-12 | MS20F/MS20-OF Series Magnasphere Recessed 3/8” Flanged Switch Set, Round/Oval Screw Down Flange, CLosed Loop | |
MS150-12 | MS150-12 Series Magnasphere Recessed 1/2” Switch Set with Magnasphere Technology, Standard Gap 3/8”, Press Or Snap Fit, Closed Loop | |
MS180-12 | MS180-12/MS184-12/MS8080-T Series Magnasphere Recessed 3/4” and 1" Steel Door Switch Set, Standard 1/2"+ Gap on Steel Wide Gap 1"+ Gap on Steel | |
MS28 | MS28/MS29 & MS29P Series Magnasphere Surface Mount Switch Set, Standard Gap 3/8” | |
MS4400 | MMS4400 Series Magnasphere Magnasphere Aluminum Industrial Switch Set, Standard Gap Up to 3/8”, 36" Armored/Jacketed Cables | |
MS4702 | MS4702 Series Magnasphere Special Purpose Pull Apart Switch Set, 36" Armored/Jacketed Cable |

Overhead Door Magnetic
Switch Sets
These switches provide the best way to protect overhead door contacts from industrial motorized traffic like forklifts and large trucks is to recess or bury them into the concrete floor, allowing vehicles of this type to safely pass over them totally unaffected.
Primus Cable Part # | Top Seller | Description |
4510A | 4510/4510AU Series Concealed Concrete Switch Sets | |
200-36WG | 200WG/250WG Series Extended Gap Surface Mount Switch Sets | |
200-36 | 200/250 Series Industrial Overhead Aluminum Door Switch Set | |
4612 | 4612 Series Mini Curtain Door Switch Sets | |
4532 | 4532/4532L Series Miniature Overhead Door Switch Set |

Pull Apart Magnetic
Switch Sets
These switches are used in applications where cables will be exposed to mechanical or environmental damage under normal operating conditions.
Primus Cable Part # | Top Seller | Description |
8235-3 | Armored Disconnect Cable Extensions With Connectors Switch Set | |
4704 | 4704 Series Special Purpose Pull Apart Surface Mount Reed Switch Set |

Recessed Magnetic Contacts
Switch Sets
These switches make the set desirable in residential installations where no sign of an alarm system should be seen or where there is not room to install a larger diameter switch set.
Primus Cable Part # | Top Seller | Description |
50RS-12 | 50RS Series Super Miniature 1/4" Recessed Reed Switch Set | |
50R-12 | 50R/50RF Series Miniature 1/4" Recessed Reed Switch Set | |
20RS-12 | 20RS/20RS-T Series Miniature 3/8” Recessed Switch Set | |
2020-12 | 2020-12/2020-T Series 3/8” Diameter Recessed Switch Set | |
20F-12 | 20F/20OF Series Recessed 3/8” Flanged Switch Set | |
2120-12 | 2120 Series Recessed 3/8” Ribbed Switch Set | |
5065-12 | 5065 Series Recessed 3/8" Wide Gap Press Fit Switch Sets | |
5088-12 | 5088/5088-T Series 3/8" Press Fit With Flat Magnet Switch Sets | |
150RS-12 | 150RS/150RS-T Series Recessed 1/2” Short Switch Sets | |
150-12 | 150/150-T Series Recessed 1/2” Short Switch Sets | |
120T-12 | 120T/4473 Series Recessed 3/4" Switch 3/8" Magnet Switch Sets | |
180RS-12 | 180RS/8080RS-T Series Recessed 3/4” & 1” Stubby Steel Door Switch Set | |
180-12 | 180-12/184-12/8080-T Series Recessed 3/4” and 1" Steel Door Switch Set | |
N120T-12 | N120T Series Rare Earth Mighty Mag Series Switch Sets | |
N150-12 | N150 Series Rare Earth Mighty Mag Series Switch Sets | |
N2020-12 | N2020 Series Rare Earth Mighty Mag Series Switch Sets | |
N20RS-12 | N20RS Series Rare Earth Mighty Mag Series Switch Sets | |
N2120-12 | N2120 Series Rare Earth Mighty Mag Series Switch Sets | |
N50RF-12 | N50RF Series Rare Earth Mighty Mag Series Switch Sets | |
N5065-12 |
N5065 Series Rare Earth Mighty Mag Series Switch Sets |
|
5065 |
5065 Series 3/8" One Inch Gap Recessed Switch Sets |

Roller/Plunger/Tamper
Switch Sets
To allow the detection of people tampering with security equipment, devices known as “tamper switches” are often used. ... Mechanical micro switch or plunger type tamper switches are most commonly used, but optical or magnetic types of switches may also be used.
Primus Cable Part # | Top Seller | Description |
TS-20-12 | TS-20 Series Tamper/Plunger Switch | |
PB-2020-12 | PB-2020/PBF-2020 Series Plunger Switch 3/8” Diameter | |
PB-100-12 | PB-100/PBF-100 Series Push Button/Plunger Switch | |
DS-01-12 | DS Series Short Roller Ball | |
RB-01-12 | RB Series Roller Ball Plunger Contact | |
TS-01S | TS-01 Series Box Tamper Switch |

Surface Mount Magnetic Contacts
Switch Sets
Magnetic contacts are low-current devices that send a signal to an alarm or a supervised monitoring system when an armed door is opened.
Primus Cable Part # | Top Seller | Description |
50-12 | 50/50F/55F Series Miniature Surface Mount Switch Sets | |
700-T | 700 Series Capped Miniature Surface Mount Switch Set | |
500-12 | 500 Series Micro Surface Mount Switch Set | |
100-12 | 100/110 Series Miniature Surface Mounted Switch Sets With Leads | |
129A | 129 Series Miniature Surface Mount Switch Set | |
505-12 | 505 Series Super Miniature Surface Mount Switch Sets | |
1100A | 1100 Series Miniature Surface Mount Switch Sets | |
28A | 28/29 Series Standard Surface Mount Switch Sets | |
29PA-12 | 29P Series Standard Surface Mount Switch Sets |


Liquid Detection
Sensors
These sensors can be used to identify the point at which a liquid falls below a minimum or rises above a maximum level.
Primus Cable Part # | Top Seller | Description |
2500 | 2500/2600 Series Water Sensor With Relay Con, 5 VDC, 12 VDC And 24 VDC, 6 Foot Jacketed Lead Standard, Closed or Open Loop | |
2500T | 2500T/2600T Series Water Sensor With Relay Con, 5 VDC, 12 VDC And 24 VDC, 6 Foot Jacketed Lead Standard, Closed or Open Loop | |
2800 | 2800 Series Absence Of Water Detector, Form C Relay | |
2826 | 2826/2826FS Series Liquid Level Sensor, Form C Relay | |
WVS | Water Valve Shutoff, Form C Relay |

Temperature & Humidity Variation
Sensors
Temperature sensors measure air temperature, while humidity sensors measure air humidity. Both sensors are often applied in combination to reduce cost.
Primus Cable Part # | Top Seller | Description |
H8800 | H8800 Series Humidity Sensor | |
T8800 | T8800 Series Temperature Sensor | |
T8000 | T8000 Series Fixed Temperature Sensor |


E-Z Duct
Raceway & Connectors
There are enclosed conduit that forms a physical pathway for electrical wiring. Raceways and connectors protect wires and cables from heat, humidity, corrosion, water intrusion and general physical threats.
Primus Cable Part # | Top Seller | Description |
E-Z38-W | E-Z Duct Raceway & Connectors, 6 Foot Lengths | |
E-Z58SG | E-Z Duct Junction Box, 3.50” x 5.20” x 2” | |
E-ZQR6-W | EE-Z Duct Raceway Quarter Round & Connectors, 6 Foot Lengths |


Magnets
Magnetic Switch
Simple magnetic switches are used to detect the opening of doors and windows.
Primus Cable Part # | Top Seller | Description |
M-12 | Alnico V Bare Magnets, Multiple size available | |
MF-875 | Alnico V Bare Magnets, 1/8" x 3/8" x 7/8" w/ Adhesive Tape | |
M-4400 | Magnets In Cases, Multiple size available | |
M4532 | Industrial Aluminum Housing Magnets In Cases - 3.10" x 2.14" - 100 Pack | |
MM-375 | Mighty Mag Rare Earth Magnets (Round) - 10 Pack | |
MM-45 | Mighty Mag Rare Earth Magnets (Flat) - 10 Pack |


Special Purpose
Custom Items
Use these items for projects that involve custom specifications.
Primus Cable Part # | Top Seller | Description |
DPS70R | Concealed Contact Hinged Door Positioning Switch | |
CS-1 | CS Current Sensor Series Switch Sets | |
AA29P | AA Dual Function Series Switch | |
AC180 | AC Dual Function Series Switch | |
PP-30 | Engraved Wall Plate | |
HD-1 | Hold-Up Switch - Latching/Non-Latching Indicator | |
HVAC-Kit | HVAC Kit | |
HVACO-Kit | HVACO Omni-Directional Kit | |
6600 | Junction Box | |
NC-20 | Home Nurse Call System - Signaling Device | |
6973 | Plug-In Power Supply 9VDC 50 mA Output (Non-Regulated) | |
2930 | 2930/2933 Series 12V/24V - 5V DC-DC Converter 350 mA Output (Regulated) | |
8065 | Power Supply 12V 500mA | |
PTD-1 | PTD-1 Power Transfer Device | |
QDC-20 | Quick Disconnect Cord | |
SRC-12 | Service Repair Connector | |
SG-2 | ShockTec Electric Sensor | |
4561 | 4561/4561R Series Tilt Sensor | |
CT3-2-1 | CT3 Series Touch Sensor | |
VS-06 | VS Series Venting Switch Set | |
WB-30-42 | Alarmed Window Bar - Fits Windows 30"-42" | |
WT-01 | Wire Trip Switch |


Track and Gate
Mounting Kits
These mounting kits are used for Industrial/Econony fence gate posts.
Primus Cable Part # | Top Seller | Description |
8450-1 | 8450 Series Track and Gate Mounting Kits | |
8297 | 8297/8297-Kit Series Industrial Track Mount Overhead Kits | |
8299-G | 8299-G/8299-G-Kit Series Economy Track Mount Overhead Kits | |
S-10 | "L" & "Z" Brackets | |
4175 | 410 "L" Mounting Bracket - 10 Pack |

Home and Commercial
Electronic Devices
These items are compatible to use with our other home and commercial products.
Primus Cable Part # | Top Seller | Description |
LVSD | LVSD/LEDSD Series Low Voltage/LED Switching Device | |
CC-01 | Current Controller - Automatic AC Voltage Switching System | |
DA-1 | DA Series Door Alert Annunciator | |
290-1 | 290 Series Door Monitor | |
DM-1 | Door?Man Garage Door Kit | |
PTDC | PTDC/PTDCL Series Power Transfer Device With Custom Lengths | |
SB-2000 | SB-2000/SB-2001 Series Timed Electronic Shunt |

Pool Alarms
Accessories
Used to alert you when a person makes contact with your pool. Using electronic sensors, these alarms can detect when something enters into your swimming pool, including pets, kids, and other items.
Primus Cable Part # | Top Seller | Description |
289CP-1 | 289 CP Series Child Resistant Pool Alarm - ETL Listed | |
DPARM | DPARM - Closed Loop Pool Alarm | |
289-1 | 289 Series Pool Alarm Door Alert - ETL Listed | |
189-1 | 189 Series Pool Alarm Door Alert - ETL Listed | |
GT10-2 | GT10 Series Gate Mount Pool Alarms | |
289N-1 | 289N Series Pool Alarm Door Alert | |
189N-1 | 189N Series Pool Alarm Door Alert | |
084-1 | 084/184 Series Pool Alarm Remote - All Weather |

Additional
Accessories
Finish up your new installations with the use of our accessories such as our armored cable extensions which are generally used to transfer power across gates and overhead doors where a standard switch will not work.
Primus Cable Part # | Top Seller | Description |
6644T | Resistor Pack, Terminal Block, Dual, 2-1K - 10 Pack | |
5702/8449/8296 | 5702/8449/8296 Series Bulk Stainless Steel Armored Cable | |
8235-3 | Armored Disconnect Cable Extensions With Connectors | |
DP-20RS | Dummy Plugs - 100 Pack | |
PW-50RF | Pre-Wire Plugs - 10 Pack | |
CB-1.0 | Wire Run Plugs - 10 Pack | |
7834 | Bushings - 10 Pack | |
6726 | Knockout Plugs or Seals for Electrical Box - 10 Pack |
Have Questions about GRI or would like to place an order?
If you have further questions about any GRI products or would like to place and order with us please leave us a message using the form below. Someone from our team will respond to your message as soon as possible. We look forward to fulfilling your requests.