Description
The ControlByWeb® GRI-2605 is a reliable 5 VDC water sensor engineered for early leak detection to prevent costly water damage from leaking pipes, water heaters, HVAC condensation pans, and sump basins. Designed with solid-state electronics and no moving mechanical parts, this sensor delivers long-term dependability and continuous leak monitoring in residential, commercial, and industrial settings.
Operating via a moisture bridge across its contacts, the GRI-2605 detects standing conductive liquids as shallow as 1/16 in. Once moisture is detected, the sensor outputs a 5 VDC signal to a connected ControlByWeb digital input, instantly triggering automated actions such as sending email or text alerts, logging event data, or switching relays to close shutoff valves or activate pumps. The unit features an automatic reset function that returns the system to normal once the sensor dries, and comes equipped with a 6 ft jacketed lead for flexible installation in tight or hard-to-reach areas.
Key Features
- Ultra-Sensitive Detection: Detects standing conductive, non-flammable liquids at depths as low as 1/16 in (1.6 mm) for immediate leak warnings.
- Solid-State Architecture: Contains no mechanical moving parts, offering superior reliability and reduced risk of mechanical wear or failure.
- Automatic Reset: Resets automatically after the moisture clears, restoring normal monitoring status without requiring manual intervention.
- 6 ft Jacketed Cable: Standard 6 ft lead wire allows versatile placement under water heaters, along pipes, or inside drain pans.
- 5 VDC Trigger Output: Sends a 5 VDC active signal to digital inputs to trigger local relay control and remote network notifications.
- Wide Device Compatibility: Seamlessly integrates with ControlByWeb® controllers equipped with digital inputs for centralized monitoring.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | GRI-2605 |
| Product Type | 5 VDC Water & Conductive Liquid Detection Sensor |
| Operating Voltage | 5 VDC |
| Detection Principle | Solid-state moisture bridge (no mechanical parts) |
| Detection Sensitivity | 1/16 in (1.6 mm) liquid depth |
| Detectable Media | Conductive, non-flammable liquids |
| Output Signal | 5 VDC signal when wet (“On”) |
| Reset Type | Automatic (resets upon drying) |
| Cable Length & Type | 6 ft (1.83 m) jacketed lead |
| Primary Applications | Water heater drip monitoring, pipe leaks, HVAC drain pans, flood detection |
| 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™, XW-112™, and all digital input models |





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