GRI products
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Save $43.93
GRI T8800 Temperature Sensor
Industrial temperature sensor for HVAC control and facility automation
- Industrial temperature sensor for factory floor and server rooms
- 10VDC operation drops into standard environmental monitoring loops
- US-made 1 lb housing for outdoor equipment enclosure deployments
Usually Ships in 2-3 Weeks Free shipping over $499$156.92 $112.99 Save $43.93 -
Save $20.07
GRI SG-2 ShockTec Vibration Sensor
Ground vibration sensor with 5–500 Hz detection for perimeter breach warning
- ShockTec vibration sensor detects climbing, cutting, and impact
- Standoff warning before intruder reaches the fence or barrier
- 12V DC or battery operation - relay contact closure to panel
Usually Ships in 2-3 Weeks Free shipping over $499$88.06 $67.99 Save $20.07 -
Save $0.49
GRI PAA Pool Access Alarm
Standalone pool perimeter alarm with instant visual and audible alert
- Closed-loop pool access alarm tuned for pool perimeter coverage
- Ultralife 9V lithium battery for multi-year unattended operation
- Filters wind, animals, and vegetation movement false alarms
Usually Ships in 2-3 Weeks Free shipping over $499$176.48 $175.99 Save $0.49 -
Save $5.93
GRI GR3045 Panic Switch
Hardwired panic switch with 80A relay capacity for emergency response
- Finger-tip panic switch handles up to 80A direct alarm relay loads
- Deliberate-actuation lever prevents accidental triggering
- Operates 32 to 140 degrees F for unconditioned panic-button placement
Usually Ships in 2-3 Weeks Free shipping over $499$34.92 $28.99 Save $5.93 -
Save $0.43
GRI DPARM Closed Loop Pool Access Alarm
Closed-loop pool perimeter alarm with integrated access control
- Closed-loop pool access alarm with continuous circuit monitoring
- Detects tampering or line cuts immediately - no silent failures
- 9V battery operation - drop-in for residential pool perimeter
Usually Ships in 2-3 Weeks Free shipping over $499$120.42 $119.99 Save $0.43 -
Save $0.63
GRI 5065 Series 3/8" Recessed Magnetic Reed Contact
3/8" recessed magnetic reed contact for concealed door detection
- 3/8-inch recessed magnetic reed contact for standard door frames
- Matches 95% of commercial door-to-frame clearance configurations
- Lifetime US-made warranty - 1 lb sealed reed switch assembly
Usually Ships in 2-3 Weeks Free shipping over $499$3.62 $2.99 Save $0.63 -
Save $14.73
GRI 4612 Mini Curtain Door Contact Sensor
Mini contact sensor for curtain doors and cabinet enclosures
- Mini curtain door contact for thin-wall and cabinet installations
- Contact closure signaling to standard alarm zone inputs
- Lifetime US-made warranty - 0.15 lb compact housing
Usually Ships in 2-3 Weeks Free shipping over $499$54.72 $39.99 Save $14.73 -
Save $0.25
GRI 4561R Tilt Sensor with Relay
Tilt sensor with relay output for door and window monitoring
- Tilt sensor with integrated N.O./N.C. relay output to panel
- Switches clean contact closure - no software parsing needed
- 5VA max switching capacity for direct alarm zone integration
Usually Ships in 2-3 Weeks Free shipping over $499$17.24 $16.99 Save $0.25 -
Save $0.89
GRI 4561 Tilt Sensor
Miniature tilt sensor detects 13.3mm displacement for tamper detection
- Compact 2.0 x 0.75 inch tilt sensor for covert equipment monitoring
- Detects panel, cabinet, or display rotation away from secured position
- 25A switching capacity, 5VA max for direct alarm zone wiring
Usually Ships in 2-3 Weeks Free shipping over $499$14.88 $13.99 Save $0.89 -
Save $5.19
GRI 4532L Mini Overhead Door Contact with Lead Wire
Mini overhead door contact with hardwired lead—no power needed
- Mini overhead door contact with pre-attached lead wire
- Lead-wire termination cuts on-site wire pulls and conduit
- Lifetime US-made warranty for retrofit overhead door installs
Usually Ships in 2-3 Weeks Free shipping over $499$27.18 $21.99 Save $5.19 -
Save $0.43
GRI 4473 Series 3/4" Recessed Contact for Wood/Aluminum/Vinyl
3/4" recessed magnetic reed contact for wood, aluminum, vinyl doors
- 3/4-inch recessed door contact for wood, aluminum, and vinyl frames
- Recessed mounting hides hardware - low visual impact at the frame
- Lifetime US-made magnetic reed switch (N.O.) for door monitoring
Usually Ships in 2-3 Weeks Free shipping over $499$5.42 $4.99 Save $0.43 -
Save $20.17
GRI 4402AB Biased Aluminum Industrial High Security Contact
Industrial aluminum high-security contact for access control readers
- Biased aluminum high-security industrial contact resists tampering
- Engineered bias mechanism for consistent contact engagement
- Lifetime US-made warranty for industrial access control deployments
Usually Ships in 2-3 Weeks Free shipping over $499$71.16 $50.99 Save $20.17 -
Save $12.17
GRI 4402 Series Aluminum Industrial Contact
Aluminum industrial contact for access control door monitoring
- Aluminum industrial contact for door position monitoring
- Built-in EOL resistors and diodes available on request
- Lifetime US-made warranty - rack-mountable for control cabinets
Usually Ships in 2-3 Weeks Free shipping over $499$45.16 $32.99 Save $12.17 -
Save $8.05
GRI 4400 Aluminum Industrial Wide Gap Contact
Aluminum contact for wide-gap door frames in commercial access control
- Aluminum wide-gap industrial contact resists oxidation in damp sites
- Lifetime warranty - US-made 2.0 x 0.6 x 0.72 in housing
- Secures chain-link gates, overhead doors, and outbuildings
Usually Ships in 2-3 Weeks Free shipping over $499$43.04 $34.99 Save $8.05 -
Save $15.01
GRI 2600 Water Sensor with Relay
Passive water sensor with relay for 12V/24V alarm systems, no power needed
- Water sensor with built-in N.O. relay - no intermediate switching
- Conductive moisture probe distinguishes water from humidity
- 12V/24V alarm system compatible for direct panel zone wiring
Usually Ships in 2-3 Weeks Free shipping over $499$44.00 $28.99 Save $15.01 -
Save $0.84
GRI 4700A Industrial Track Mount Overhead Door Contact
Track-mounted overhead door contact for industrial loading docks
- Industrial track-mount overhead door contact for warehouse doors
- Track mounting protects sensor from door cycle impact and debris
- Lifetime US-made warranty for high-cycle commercial deployments
Usually Ships in 2-3 Weeks Free shipping over $499$79.83 $78.99 Save $0.84 -
Save $2.07
GRI 400-W 4" Surface Mount Contact
4" surface mount contact for TCP/IP networked door access control
- 4-inch surface-mount door contact fits standard frame cutouts
- Built-in EOL resistors and diodes available on request
- Drops onto existing door hardware with no frame modification
Usually Ships in 2-3 Weeks Free shipping over $499$12.06 $9.99 Save $2.07 -
Save $8.13
GRI 2800-W Surface Mount Water Contact Sensor
Surface-mount water sensor for leak detection in facilities
- Surface-mount water contact closes dry contact when bridged
- 5-24 VDC operation with 10 uA standby current - very low power
- Drops into computer rooms, sub-floors, and telecom equipment areas
Usually Ships in 2-3 Weeks Free shipping over $499$31.12 $22.99 Save $8.13 -
Save $3.83
GRI 2800 Surface Mount Water Contact Sensor
Surface-mount water sensor with direct contact detection, no drilling
- Surface-mount water contact sensor reacts only to liquid presence
- 5VDC operation drops into standard ELK low-voltage zone wiring
- Filters out humidity false alarms for sub-floor and server rooms
Usually Ships in 2-3 Weeks Free shipping over $499$29.82 $25.99 Save $3.83 -
Save $0.17
GRI Industrial Track Mount Closed Loop - 4700-A
In stock · Ships same business day Free shipping over $499$79.16 $78.99 Save $0.17