YHSM-AR01 is an All-in-One electronic liquid leak point sensor that operates on DC 24 V without a separate control module. It provides chemical-family specific detection of acids, alkalis and inorganic solutions without responding to water. Response time is 2 to 60 seconds, depending on the chemical. Integrated SSR alarm output (N/O) and RS-485 (YH-BUS) communication support equipment integration. The all-in-one design simplifies installation and maintenance.

✨ All-in-One Leak Sensor | YHSM-AR01
Optimized detection by chemical family with a built-in controller for fast equipment integration.
YHSM-AR01 is an All-in-One electronic leak point sensor optimized for the acid, alkali, and inorganic solution chemical family. It operates without a separate control module and provides SSR alarm output (N/O) and RS-485 (YH-BUS) communication. The sensor does not respond to water and can be washed with water, dried and reused after detection.
Unique Selling Points of YHSM-AR01
💡 Smart All-in-One Design
• The all-in-one design integrates power input, alarm output and communication for standalone operation. It uses DC 24 V and requires no separate control module.
🎯 Optimized Detection by Chemical Family
• Designed for chemical-family specific detection of acids, alkalis and inorganic solutions without responding to water. Typical media include sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, sodium hydroxide and hydrogen peroxide.
⚡️ Fast Detection & Response
• Detects leaks within 2 to 60 seconds, depending on the chemical.
♻️ Easy Cleaning, Reusable Operation
• After detection, wash the sensor with water and dry it before reuse. The reusable design reduces replacement requirements and maintenance costs.
🛡️ RS-485 (YH-BUS) Communication
• Provides an RS-485 (YH-BUS) communication interface for a host monitoring system (PLC / DCS / SCADA). Status indicators are RXD, TXD, POWER and LEAK.
The built-in controller simplifies installation and enables quick deployment of a chemical-family specific leak monitoring system for acids, alkalis, and inorganic solutions.
View test footage verified under real leak conditions, including sensor response and alarm operation.
| Item | Details |
| Model | YHSM-AR01 |
| Product Type | All-in-One Electronic Leak Point Sensor |
| Target Liquids | Acids, Alkalis and Inorganic Solutions |
| Power Input | DC 24 V |
| Alarm Output | SSR Alarm Output (N/O) |
| Communication | RS-485 (YH-BUS) |
| System Design | Integrated power input, alarm output and communication |
| Status Indicators | RXD / TXD / POWER / LEAK |
| Dimensions | 68 × 68 × 32 (±0.5) mm |
| Operating Temperature | -20 to +55 °C |
| Operation | Standalone operation without a control module |
| Response Time | 2 to 60 seconds (depending on the chemical) |
| Typical Applications |
Pipes and valves; chemical storage tanks and areas; floors and trays; production lines and equipment |
| Typical Detection Media | Sulfuric Acid, Hydrochloric Acid, Nitric Acid, Hydrofluoric Acid, Sodium Hydroxide, Hydrogen Peroxide, Other Acids, Alkalis and Inorganic Solutions |
| Product Features | • Chemical family detection: acids, alkalis and inorganic solutions • No response to water; response time of 2 to 60 seconds (depending on the chemical) • Standalone operation with SSR alarm output (N/O) and RS-485 (YH-BUS) communication • Wash with water, dry and reuse after detection |
Semiconductors · Petrochemicals · Oil Refining · Batteries · Power Generation · Steel · Warehousing · Wastewater Treatment · Defense
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[Electronic Leak Point Sensor Housing Assembly Photos]
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