YHSP-SAR-Ex is an intrinsically safe electronic leak point sensor designed for chemical-family specific detection of acids, alkalis, and inorganic solutions. It is certified with the Ex ia intrinsically safe rating (Ex ia IIC T6) for stable operation in hazardous areas. Its selective detection structure is designed not to react to water, reducing nuisance alarms in humid or washdown environments. The sensor is washable and reusable, lowering maintenance burden while improving safety reliability by capturing early-stage leaks.

🛡️ KCs Intrinsically Safe Certification | Ex ia IIC T6
Secure the “golden time” for chemical incident response: an intrinsically safe electronic leak point sensor
YHSP-SAR-Ex: optimized detection by chemical family, fast response, and Ex ia intrinsically safe protection to raise on-site safety standards.
In hazardous chemical facilities, the speed of detection often determines the scale of damage. Yoohantech YHSP-SAR-Ex is purpose-built for chemical-family specific detection of acids, alkalis, and inorganic solutions as an intrinsically safe electronic leak point sensor. It detects even small leaks quickly in hazardous areas (Zone 0) to secure early response time and reduce secondary damage.
💎 Optimized Detection by Chemical Family
• Designed for chemical-family specific detection of acids, alkalis, and inorganic solutions while ignoring rain, condensation, and washdown water. This reduces nuisance alarms and improves operational reliability. (※ Water-detection option available depending on site conditions)
⚡️ Real-Time Ultra-Fast Response (Real-Time Response)
• The sensor electrode reacts immediately upon leak contact and outputs a signal, helping prevent spread, corrosion, and equipment damage by securing early response time.
♻️ Washable & Reusable (Reusable & Cost-Effective)
• Unlike disposable consumables, the sensor is designed for repeated use after cleaning, lowering long-term operating and maintenance costs.
🛡️ Strong Chemical Resistance & Durability (High Durability)
• Built with chemical-resistant materials (SUS304, PP, etc.) to deliver stable durability in harsh chemical environments.
💡 Smart Self-Diagnostics (Smart Self-Check)
• Works with the controller module to monitor cable breaks and sensor faults. If an abnormal condition is detected, it outputs an alarm immediately, reducing downtime and improving safety management efficiency.
⚙️ Safety System Configuration Guide (System Configuration)
• Intrinsically Safe Ex ia Rating
The Ex ia intrinsically safe design reduces spark risk, enabling safe installation and operation even in hazardous zones where explosive gases may be present.
• Required Integration Components
This product must be configured with a dedicated leak detection controller module, Zener barrier, and protective housing. This ensures compliance with installation requirements and stable detection performance.
View test footage verified under real leak conditions, including sensor response and alarm operation.
| Item | Details |
| Model | YHSP-SAR-Ex (Intrinsically Safe Electronic Leak Point Sensor) |
| Power Supply |
DC 5V (supplied by controller module) |
| Measurement Range |
0 – 3000 (sensor output level) |
|
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 32mm (± 0.5) |
| 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˚C – 60˚C |
| Detection Performance | • Alkali: caustic soda (NaOH) 5%–50% (response within 10 sec) • Acids: sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, etc. 7%–98% (response within 10 sec) • Inorganic solutions: hydrogen peroxide, etc. (response within 20 sec) |
| Key Points | • Optimized detection by chemical family: designed for acids, alkalis, and inorganic solutions • Non-reactive to water: prevents nuisance alarms from water (optional water-detection available) • System scalability: integrates with dedicated controller modules for centralized monitoring • Cost efficiency: washable and reusable sensor design reduces maintenance cost • Reliability: immediate alarm output on cable break or sensor fault detection |
Explore real industrial leak detection installations and get guidance on a configuration that fits your facility.

|
🔹YHSM-01S-AR (1-Channel Controller Module) |
🔹YHSM-04S-AR (4-Channel Controller Module) |
|
🔹Zener Barrier |
🔹YHWS-P02 (Base) |
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.