Home chevron_right Electronic Components & Chips chevron_right Chips chevron_right Sensor Chips chevron_right Water Level Sensor Chips 
Water Leak Detector WLD
Water Leak Sensor

Water Leak Sensor - WLD

Water Leak Detection:
WLD-NC/NO(-Q)/PCBA: Normally Closed (NC)/Normally Open (NO) relay switch output
WLD-485/PCBA: RS485 digital output, can output 0-5 levels of water immersion
Temperature Range: -40°C to +85°C
Supply Voltage: 9V to 30V
Output Interface: Passive dry contact or RS485 interface
Relay Load Capacity: 3A 250VAC/30VDC, 1A 120VAC
Alarm Height: 2±0.5mm water immersion (configurable)
False Alarm Rate: 100ppm
Response Time: ≤1s

Product Models: WLD

Product Introduction

The Water Leak Detector (WLD) is a capacitive, non-contact intelligent water leak sensor.

The WLD water leak sensor uses a proprietary high-frequency differential digital capacitive chip MC11S, combined with a unique capacitive monitoring electrode design. It integrates a microprocessor, power management circuit, and relay drive circuit, with flexible embedded detection algorithms. This allows the sensor to accurately analyze different levels of water immersion and effectively filter out environmental interference such as electromagnetic, vibration, condensation, and temperature through built-in algorithms, greatly improving the accuracy of water leak detection in industrial environments.
The WLD water leak sensor features strong penetration, high measurement accuracy, and strong anti-interference capability of digital interfaces. It is widely applicable in waterproof and leak detection scenarios such as power cabinets, charging piles, subways, underground pipe galleries, tunnels, manhole covers, and computer rooms.

I. Features of Water Leak Sensor - WLD:

Water Leak Detection:
WLD-NC/NO(-Q)/PCBA: Normally Closed (NC)/Normally Open (NO) relay switch output
WLD-485/PCBA: RS485 digital output, can output 0-5 levels of water immersion
Temperature Range: -40°C to +85°C
Supply Voltage: 9V to 30V
Output Interface: Passive dry contact or RS485 interface
Relay Load Capacity: 3A 250VAC/30VDC, 1A 120VAC
Alarm Height: 2±0.5mm water immersion (configurable)
False Alarm Rate: 100ppm
Response Time: ≤1s
Waterproof Rating: IP67
Mounting Screws: M4*12
WLD-NC/NO PCBA Dimensions: φ52mm, thickness 1.6mm, overall height affected by peripherals (relay, buttons, lights, etc.)
WLD-NC/NO(-Q) Dimensions: φ56mm, width 76.3mm, height 22mm
WLD-485 PCBA Dimensions: φ52mm, thickness 1.6mm, overall height 3.3mm
WLD-485 Dimensions: φ56mm, width 72.5mm, height 22mm


II. Applications of Water Leak Sensor - WLD:

Power Cabinets

Charging Piles

Subways

Underground Pipe Galleries

Tunnels

Manhole Covers

Computer Rooms and other waterproof

Leak detection scenarios