YHSP-SAR is an electronic liquid leak point sensor that quickly detects floor leaks of acids, alkalis, and inorganic solutions. It is designed to reduce unnecessary alarms in water-exposed environments (rain, condensation, etc.), improving operational efficiency. With a structure that can be washed and reused, it helps reduce maintenance burden. When used with a dedicated controller module, it enables real-time monitoring of leak events, making it suitable for chemical spill prevention and building a reliable safety monitoring system.

On-site monitoring solution to help prevent chemical incidents: electronic leak point sensor
YHSP-SAR: Selective detection technology for acids, alkalis & inorganic solutions.
YHSP-SAR is a professional electronic leak point sensor designed to detect even small floor leaks quickly and accurately. It focuses on acids, alkalis, and inorganic solutions, delivering an alarm signal at the earliest stage of leakage to support rapid response and improve safety for equipment, assets, and workplaces.
Differentiated Technology (Key Features)
💧 Nuisance-Alarm Reduction Design
• Designed to reduce unnecessary reactions in typical water environments (rain, condensation, etc.) and respond selectively to leaks of acids, alkalis, and inorganic solutions. (※ Water-detection option can be added depending on site requirements)
⚡️ Real-Time Ultra-Fast Detection
• As soon as liquid enters the bottom area of the sensor, a specially designed conductor reacts, enabling real-time detection without missing even small leaks.
♻️ Washable & Reusable for Better Cost Efficiency
• No immediate disposal or replacement is required after leak detection. The sensor is designed for reuse after washing, helping reduce maintenance cost and improve operational efficiency.
🌐 Complete System Monitoring
• When integrated with a dedicated controller module, the system can monitor not only leak events but also cable breaks and sensor fault status in real time, improving system reliability.
💪 Durability Optimized for Industrial Sites
• Designed to diagnose leaks, cable breaks, and sensor damage in real time through controller-module integration. If an abnormal condition occurs, it automatically generates an alarm signal so operators can act immediately.
View test footage verified under real leak conditions, including sensor response and alarm operation.
| Item | Details |
| Model | YHSP-SAR (Electronic Leak Point Sensor) |
| Power Supply | DC 5V (supplied by controller module) |
| Measurement Range | 0–3000 |
| Output Type | Phase Shift |
| Detection Targets |
Acids/alkalis (sulfuric acid, hydrochloric acid, nitric acid, caustic soda, etc.), inorganic solutions (hydrogen peroxide, etc.), and other conductive liquids |
| Dimensions | Ø68 x 32 (± 0.5)mm |
| Materials |
SUS304 (stainless steel), PP (polypropylene), and other chemical-resistant materials |
| Installation Areas |
Indoor/outdoor hazardous storage, beneath chemical piping, around tanks, trenches, etc. |
| Operating Temperature | -20 to 60˚C |
| Detection Performance | • Alkali solutions: caustic soda (NaOH) 5%–50% (response within 10 sec) • Acid solutions: 7%–98% sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, etc. (response within 10 sec) • Inorganic solutions: hydrogen peroxide, etc. (response within 20 sec) |
| Key Points | • Non-reactive technology: prevents nuisance alarms by not reacting to water (can be configured to react to water if needed) • System integration: works with a dedicated controller module • Cost efficiency: reusable after simple water cleaning • Reliability: real-time alarms for cable breaks and sensor damage |
Explore real industrial leak detection installations and get guidance on a configuration that fits your facility.

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🔹YHSM-01S-AR (1-Channel Controller Module) |
🔹YHSM-04S-AR (4-Channel Controller Module) |
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🔹YHWS-P01 (Base) |
🔹YHBK-P02 (Housing) |
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[Electronic Leak Point Sensor Housing Assembly Example]
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Setting the trusted standard for liquid leak detection in industrial facilities.