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Water Leak Sensor

Scenarios such as power distribution rooms, data centers, communication base stations, industrial warehouses, and underground utility tunnels generally rely on manual periodic inspections, which fail to detect water seepage and ponding hazards around the clock. Rainwater backflow, wall leakage, and pipe dripping will continuously corrode power equipment and cabinets, easily triggering safety accidents including line short circuits, equipment failures, and regional power outages, resulting in severe economic losses such as equipment damage, surging O&M costs, and production suspension.

Specification parameters

Product Model Classification (Customizable)

Note: WIFI and RS485 communication are standard configurations; 4G communication supports on-demand customization; all models support ODM/OEM customized modification.

Product Type

Standard Model (WIFI/RS485)

Customized 4G Model

Detection Features

Application Scenarios

Single-point Probe Type

HS-SJ-WS-O

HS-SJ-GS-O

High-precision single-point detection, small coverage, fast response

Bottom of power distribution cabinets, small industrial equipment rooms, interior monitoring of cabinets

Linear Leak Rope Type

HS-SJ-WR-O

HS-SJ-GR-O

Supports long cable customization, full linear detection without blind spots

Cable trenches, pipeline corridors, long-strip equipment area monitoring

Three-point Fixed Probe

HS-SJ-WP-O

HS-SJ-GP-O

3 independent probes for synchronous monitoring, supporting multi-area partition sensing

Multi-zone workshops, modular data centers, multi-area waterproof monitoring

Extended Three-point Leak Rope

HS-SJ-WO-L-O

HS-SJ-GO-L-O

Multi-point long-distance detection for large-scale sites

Large storage bases, underground utility tunnels, long-distance pipeline areas

Three-point Water Level Gauge

HS-SJ-WA-O

HS-SJ-GA-O

Accurate quantitative monitoring of ponding depth at fixed points

Sump wells, low-lying basement areas, municipal ponding monitoring stations

Technical Specifications

Parameter Item

Standard Specification

Communication Mode

Standard: WIFI, RS485 (Modbus-RTU protocol); Optional: Customized 4G

Main Control Chip

Industrial-grade high-stability main control chip

Power Supply

DC 10-30V wide-voltage industrial power supply

Operating Temperature

-20℃ ~ +60℃

Operating Humidity

0%RH ~ 95%RH (non-condensing)

Detection Object

Tap water, purified water (detection threshold customizable)

Communication Distance

RS485 up to 2000 meters, supporting bus networking

Local Display

Optional OLED high-definition display for local real-time data and alarm status viewing

Alarm Logic

Instant detection and upload when ponding occurs; alarm delay and detection sensitivity adjustable

Output Contact

Normally open relay contact, supporting local linkage alarm

Installation Method

Wall-mounted industrial installation, suitable for fixed deployment in various scenarios

Product Certification

EMC industrial-grade electromagnetic compatibility certification

Customizable Items

Equipment appearance, LOGO, leak rope length, detection sensitivity, communication parameters, software/hardware protocol secondary development, 4G customization

Product Overview

Intelligent Water Immersion Sensor Series

Core Selling Points

  • Standard Modbus-RTU Communication Protocol
  • WIFI & RS485 Dual Communication Standard
  • Optional OLED High-Definition Display
  • EMC Industrial Anti-Interference Certification
  • Full ODM/OEM Customization Service

Product Overview

Scenarios such as power distribution rooms, data centers, communication base stations, industrial warehouses, and underground utility tunnels generally rely on manual periodic inspections, which fail to detect water seepage and ponding hazards around the clock. Rainwater backflow, wall leakage, and pipe dripping will continuously corrode power equipment and cabinets, easily triggering safety accidents including line short circuits, equipment failures, and regional power outages, resulting in severe economic losses such as equipment damage, surging O&M costs, and production suspension.

Haosheng intelligent water immersion sensors adopt patented alternating current detection technology, which can accurately identify ponding of different water qualities (tap water, purified water, etc.), thoroughly solving industry pain points of traditional electrode-type sensors, such as oxidation after long-term immersion, sensitivity attenuation, false alarms and missed alarms. Replacing traditional manual inspection, the device delivers 7×24 uninterrupted real-time ponding monitoring. It converts water resistance change signals into standard digital signals rapidly, and uploads data to third-party platforms via compliant communication protocols to give real-time abnormal feedback, so as to avoid water leakage risks in advance and greatly reduce manual O&M costs and equipment loss risks.

The product features an industrial waterproof wall-mount enclosure with high protection rating, adaptable to complex industrial environments with high humidity, heavy dust and strong electromagnetic interference. Equipped with a standardized industrial communication system, it supports mainstream WIFI and RS485 communication, with 4G available for customized configuration. It is compatible with various third-party industrial control equipment, PLC systems and configuration software. The full product line supports full-dimensional customization covering appearance, parameters, software/hardware interfaces and packaging, to meet customized project requirements across different regions and scenarios.

The HS-SJ series covers multiple mainstream specifications, including single-point probe, linear leak detection rope, multi-point partition monitoring and precise water level detection, fully meeting monitoring demands in data centers, power facilities, municipal engineering and warehousing scenarios. All models have passed industrial EMC electromagnetic compatibility certification, ensuring stable operation under complex industrial working conditions.

Core Product Advantages

1. Patented Alternating Current Detection for Industrial Stability and Accuracy

Equipped with patented alternating current acquisition technology, the sensor can accurately identify ponding of different water qualities, eliminating electrode oxidation and polarization caused by long-term immersion, with no need for dedicated electrodes. It effectively avoids detection sensitivity attenuation, false alarms and missed alarms, delivering stable performance and long service life, suitable for long-term monitoring in various unattended stations.

2. Standardized Communication with Multi-protocol Compatibility

The device comes with standard WIFI and RS485 communication, and 4G is available for customized selection. Adopting the standard Modbus-RTU industrial protocol, it can be seamlessly connected with PLCs, industrial control equipment and third-party IoT platforms, with a maximum communication distance of 2000 meters and stable networking. An optional OLED high-definition display allows on-site staff to view monitoring data and alarm status intuitively.

3. Industrial-grade Hardware Protection for Complex Working Conditions

Adopting an industrial waterproof enclosure structure, the device has excellent dustproof and moisture-proof performance. The whole machine has passed EMC industrial electromagnetic compatibility certification, with strong anti-interference ability, and operates stably in strong electromagnetic environments such as substations and data centers. It supports a wide operating temperature range, adapting to harsh industrial conditions such as extreme temperatures and heavy dust, and supports all-weather stable monitoring.

4. Simple Installation and Deployment with Lower O&M Costs

The integrated wall-mounted design eliminates the need for complex wiring and dedicated gateways, and the device can run on an independent network. With easy accessory laying and installation, ordinary O&M personnel can complete deployment quickly, effectively reducing construction and later maintenance costs. It supports remote custom debugging of parameters such as baud rate, alarm delay and detection sensitivity, adapting to the standards of various projects.

5. Full-dimensional Customization for Diverse Projects

The full series supports comprehensive ODM and OEM customization services. Customers can customize equipment appearance, LOGO, packaging, leak rope length and various operating parameters as needed. It supports secondary development of software and hardware and protocol adaptation, compatible with various third-party industrial control equipment and platforms. It flexibly adapts to different project scenarios and solves the problem of poor adaptability of general equipment, supporting customized production for both small and large batches.

Communication Protocol Description

To meet third-party docking requirements of various projects, the device is natively compatible with the general industrial Modbus-RTU protocol, supports CRC redundancy check, and features stable communication and strong compatibility. It can be directly connected to mainstream PLCs, industrial control systems, configuration software and third-party IoT platforms.

It also supports expansion and adaptation of general IoT protocols such as MQTT. Customized protocol development can be carried out according to platform interface standards, meeting the networking requirements of various intelligent monitoring systems.

The device supports adjustable baud rates (2400/4800/9600bit/s). Parameters such as device address, alarm delay and detection sensitivity can be remotely debugged via configuration software, adapting to the communication networking specifications of different projects.

Application Scenarios

  • Power Industry: Ponding monitoring in power distribution rooms, substations, low-voltage distribution cabinets, cable trenches and underground power utility tunnels
  • Data Communication: Water leakage risk monitoring in data centers, communication base stations, equipment rooms and server cabinets
  • Warehousing & Archives: Waterproof monitoring in industrial warehouses, archives, libraries, commercial basements and hotel equipment rooms
  • Municipal Infrastructure: Urban underground utility tunnels, subway equipment areas, municipal monitoring stations and low-lying area ponding monitoring


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