YHSM-A01 is an All-in-One electronic leak point sensor that can be operated immediately by simply connecting power, without a separate controller module. It is designed to detect organic solvent and oil leaks, and features a selective detection structure that helps reduce unnecessary reactions in water and humidity environments (condensation/washdown). With an SSR contact output, it can directly interface with a beacon light or on-site equipment, allowing you to build a leak monitoring system easily based on your installation conditions.

💧 All-in-One Organic Solvent & Oil Leak Detection Sensor | YHSM-A01
The built-in controller simplifies installation and supports fast integration with on-site equipment.
YHSM-A01 is a high-performance All-in-One electronic leak point sensor designed to detect organic solvent and oil leaks. Without any external controller module, it provides an immediate signal output via SSR (N/O), enabling simple field installation without complex wiring.
Core Technology of YHSM-A01 (Key Technology)
💡 Smart All-in-One Design (All-in-One Design)
• A true All-in-One design eliminates the need for a separate controller module, reducing installation components and simplifying system integration. Designed for direct connection to field equipment.
🔬 Selective Detection Design (Selective Detection)
• Designed to reduce nuisance alarms in water/humidity environments (condensation/washdown) and respond selectively to organic solvent and oil leaks, improving on-site operational efficiency.
⚡️ Fast Detection Based on Surface Tension
• The moment a leak contacts the sensor surface, it outputs a detection signal based on the surface-tension change principle, supporting rapid response at the earliest stage of leakage.
🔧 Replaceable Sensor Head (Replaceable Sensor Head)
• Even if the sensor bottom becomes contaminated or damaged, you can restore operation by removing/replacing only the floor-sensor cartridge. (※ Floor-sensor cartridge sold separately)
🛡️ Strong Durability & Stability
• Designed with physical impact and electrical noise considerations to support stable operation in indoor industrial environments.
With its built-in controller, YHSM-A01 simplifies installation and supports efficient deployment of an organic solvent & oil leak monitoring system.
View test footage verified under real leak conditions, including sensor response and alarm operation.
| Item | Details |
| Model | YHSM-A01 (All-in-One Electronic Leak Point Sensor) |
| Power Supply | DC 24V (ripple voltage 10% max) |
| Measurement Range | A1: 0–100.0 MΩ / A2: 0–60.00 MΩ / A3: 0–6.000 MΩ |
| Target Liquids |
All types of organic solvents, oils, VOCs, etc. (NMP, MEK, toluene, gasoline, benzene, xylene, etc.) |
| Dimensions | Ø68 x 32 (± 0.5)mm |
| Materials |
PP (polypropylene), carbon, and other chemical-resistant materials |
| Power Consumption | 1W (Max) |
| Outputs | SSR output (N/O), RS-485 communication |
| Applications | Indoor use around buildings, tanks, and piping (splash-resistant) |
| Operating Temperature | -20 to 60˚C |
| Detection Performance | Insulating oil, engine oil, tar oil, TDA, TDI, OMCTS, benzene, xylene, toluene, and all organic solvents & oils (response within 10 sec) |
| Product Features | • Selective detection design helps reduce nuisance alarms in water/humidity environments • Provides SSR output (N/O) without an external controller module • Reusable design with removable floor-sensor cartridge |
Explore real industrial leak detection installations and get guidance on a configuration that fits your facility.

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🔹YHSM-PSTG (Calibrator) |
🔹YHWS-P01 (Base) |
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🔹YHS-FS (Floor Sensor Cartridge) |
🔹YHBK-P02 (Housing) |
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[Electronic Leak Point Sensor Housing Assembly Example]
We confirm applicability and recommend solutions based on your target liquid and site conditions.
Setting the trusted standard for liquid leak detection in industrial facilities.