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GRI products

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  • Save $43.93
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    GRI T8800

    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
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  • Save $20.07
    GRI SG-2 ShockTec Vibration Sensor (view 2)
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    GRI SG-2

    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
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  • Save $0.49
    GRI PAA Pool Access Alarm (view 2)
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    GRI PAA

    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
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  • Save $5.93
    GRI GR3045 Panic Switch
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    GRI GR3045

    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
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  • Save $0.43
    GRI DPARM Closed Loop Pool Access Alarm (view 2)
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    GRI DPARM

    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
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  • Save $0.63
    GRI 5065 Series 3/8" Recessed Magnetic Reed Contact (view 2)
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    GRI 5065

    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
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  • Save $14.73
    GRI 4612 Mini Curtain Door Contact Sensor
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    GRI 4612

    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
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  • Save $0.25
    GRI 4561R Tilt Sensor with Relay - Image 2
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    GRI 4561R

    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
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  • Save $0.89
    GRI 4561 tilt sensor for security monitoring and surveillance systems
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    GRI 4561

    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
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  • Save $5.19
    GRI 4532L Mini Overhead Door Contact with Lead Wire
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    GRI 4532L

    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
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  • Save $0.43
    GRI 4473 Series 3/4" Recessed Contact for Wood/Aluminum/Vinyl
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    GRI 4473-W

    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
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  • Save $20.17
    GRI 4402AB Biased Aluminum Industrial High Security Contact (view 2)
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    GRI 4402AB

    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
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  • Save $12.17
    GRI 4402 Series Aluminum Industrial Contact (view 2)
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    GRI 4402

    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
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  • Save $8.05
    GRI 4400 Aluminum Industrial Wide Gap Contact (view 2)
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    GRI 4400

    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
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  • Save $15.01
    GRI 2600 Water Sensor with Relay (view 3)
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    GRI 2600

    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
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  • Save $0.84
    GRI 4700A Industrial Track Mount Overhead Door Contact (view 2)
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    GRI 4700A

    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
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  • Save $2.07
    GRI 400-W 4" Surface Mount Contact (view 3)
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    GRI 400-W

    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
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  • Save $8.13
    GRI 2800-W Surface Mount Water Contact Sensor
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    GRI 2800-W

    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
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  • Save $3.83
    GRI 2800 Surface Mount Water Contact Sensor (view 3)
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    GRI 2800

    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
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