Description
The ControlByWeb® GRI-4402-A is an industrial-grade, wide-gap magnetic sensor engineered for reliable position and status monitoring in demanding applications. Designed to monitor chain link gates, overhead doors, walk-in freezers, safes, and industrial equipment, this rugged contact sensor provides dependable open/closed detection even on doors and gates with wide or irregular alignment gaps.
Featuring a Form C contact (SPDT), the GRI-4402-A supports both Normally Open (NO) and Normally Closed (NC) loop configurations, offering versatile integration options for any digital monitoring or access control system. The sensor is enclosed in a weather-resistant housing built to endure extreme temperatures ranging from -40°F to 257°F. For maximum durability, it comes equipped with a 3-foot flexible armored cable that protects wiring from vandalism, physical wear, and harsh outdoor environments. Supplied complete with a matching magnet and mounting hardware, the GRI-4402-A seamlessly pairs with any ControlByWeb controller equipped with digital inputs.
Key Features
- Wide 2.5 in Operating Gap: Mounts up to 2 1/2 inches apart, ensuring reliable contact operation even on misaligned or shifting doors and gates.
- Form C SPDT Switch: Features both Normally Open (NO) and Normally Closed (NC) contacts to accommodate various monitoring and alarm circuit logic.
- 3 ft Armored Cable: Protective 3-foot armored lead shield guards internal wiring against mechanical damage, abrasion, and vandalism.
- Extreme Temperature Operating Range: Operates reliably from -40°F to 257°F (-40°C to +125°C), making it ideal for walk-in freezers and outdoor installations.
- Weather-Resistant Housing: Industrial-grade construction engineered to withstand exposure to rain, snow, dust, and temperature swings.
- Versatile Mounting Options: Can be installed on either the left or right side of access points for flexible setup.
- Complete Installation Kit: Includes matching magnet and hardware for straightforward mounting out of the box.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | GRI-4402-A |
| Product Type | Industrial Wide-Gap Magnetic Contact Sensor |
| Contact Form | Form C (SPDT – Normally Open / Normally Closed) |
| Max Operating Gap | 2.5 in (63.5 mm) |
| Cable Length & Type | 3 ft (0.91 m) Armored Cable |
| Circuit Types | Open and Closed Circuit |
| Operating Temperature Range | -40°F to 257°F (-40°C to +125°C) |
| Weather Resistance | Weather Resistant (Suitable for Indoor, Outdoor, & Cold Storage) |
| Mounting Orientation | Left or Right Hand Side |
| Included Components | Magnetic Contact Sensor, Matching Magnet, Mounting Hardware |
| Applications | Gates, Overhead Doors, Safes, Walk-In Freezers, Industrial Enclosures |
| ControlByWeb Compatibility | WebRelay™, WebRelay Wireless™, X-408™, X-410™, X-420™, WebSwitch Plus™, WebRelay-10 Plus™, X-15s™, X-17s™, X-19s™, X-20s™, XW-111™, and all models with Digital Inputs |
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