The isolation type water leakage sensor is available with a controller, relay NO NC output, RS485 communication method and sound & light alarm, mainly used for detecting water leakage in communication base stations, hotels, restaurants, precision computer rooms, libraries, warehouses, and basement or monitoring computer rooms.
Sensor Specifications
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Model: CCHN-JRWI424P
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Power Supply: 5V (White) /12V/24V/7-36V DC (Optional)
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Working Temperature: -20℃~60℃
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Working Humidity: 0%RH~100%RH
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False Alarm Rate: <100ppm
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Static Power Consumption: <0.008W
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Alarm Power Consumption: Max 0.6W@18V
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Output Form: Relay Output, NO and NC
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Load Capacity: Relay Output, ≤1A
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Waterproof Level: IP68
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Detection Cable: The sensor cable detection points are evenly distributed about 10cm apart.
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Dimension: 48x48x30mm
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Configuration: Standard 1.5m detection cable, the detection cable length can be customized.
RS485 Controller Specifications
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Working Power Supply: 7-36V DC (Non-polarity)
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Working Power: <0.4W
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Detection Method: Water Immersion Electrode
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Number of Detection Channels: 1 Channel
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Response Time: <3s
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On-Site Alarm: Sound + Indicator Light
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Relay Output: 1 Channel
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Relay Output Form: Dry Node
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Water Quality Detection: Ordinary Tap Water, Air Conditioning Water, Fire Water
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Alarm Current: <50mA
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Working Temperature: -20~70℃
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Working Humidity: 5~95%RH (Non-condensing)
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False Alarm Rate: <100ppm
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Communication Method: RS 485
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Installation Method: Standard DIN Rail installation
Sensor Dimension (Unit: mm)

Line Definition
| Color |
Line Definition |
| Red |
Power Supply Positive |
| Black |
Power Supply Negative |
| Yellow |
Normally Open Contact Output, No Polarity Difference |
| Blue |
Signal Common Terminal, No Polarity Difference |
| Green |
Normally Closed Contact Output, No Polarity Difference |
Controller Dimension (Unit: mm)

Applications

Tips: Why is a water leakage sensor equipped with a controller?
A water leakage sensor typically needs a controller to process the sensor's signal and take appropriate action when a leak is detected. The sensor alone can only identify the presence of water, but the controller is responsible for interpreting that signal, determining whether it meets a predefined threshold, and triggering a response, such as an alarm, shutting off water valves, or sending notifications.
Additionally, the controller provides a centralized interface for managing multiple sensors, adjusting sensitivity, and monitoring the system status in real-time. In advanced systems, controllers can also integrate with smart home or industrial automation systems, allowing for remote monitoring and control. Without a controller, the sensor would not be able to communicate or execute these vital actions, limiting its effectiveness in preventing damage from leaks.