GRI 2800-W Surface Mount Water Contact Sensor

Overview

The GRI 2800-W is a surface-mounted water contact sensor designed for detection and monitoring of water presence in security and building management applications. The unit mounts directly to surfaces where water intrusion or leak detection is required, providing reliable alert signaling when moisture contact is detected.

Compatibility

Suitable for integration into security systems, HVAC monitoring, and facility management platforms that support discrete sensor inputs. Compatible with control panels accepting dry contact or alarm circuit inputs from environmental detection devices.

Ted Perry

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I'm Ted Perry, and while my focus is typically on NVR storage and retention strategies, water detection sensors like the GRI 2800-W have become essential in equipment rooms where I spec deployments. This surface-mount sensor provides a straightforward dry contact closure when moisture is detected—crucial for server closets, telco rooms, or anywhere you're housing recording infrastructure that can't afford water damage.

The 2800-W works well when you're integrating environmental monitoring into an existing alarm panel or building management system that accepts discrete inputs. I've seen it deployed under raised floors near CRTAC units and along perimeter walls in basement equipment spaces. One watch-out: verify your control panel can properly supervise and report the sensor's state. Some older panels treat water contacts as simple zone triggers without distinguishing between alarm and trouble conditions, which can complicate diagnostics. Also confirm mounting location—you want the contacts where water will actually pool during a leak, not just where it's convenient to run wire.