S4A Tuya-GAS Smart Wi-Fi Combustible Gas Leak Detector Sensor
Tuya-GAS, Combustible Gas, Methane/LPG, 8% LEL Alarm, Digital Display, 70dB Siren, Valve Linkage, DC 5V
The S4A Tuya-GAS is a smart Wi-Fi combustible gas detector featuring semiconductor catalytic gas sensing, digital LEL concentration display, 70dB+ alarm buzzer, and external solenoid valve linkage output.
Product Overview
Engineered for kitchen safety and boiler room monitoring, the Tuya-GAS detects combustible gas leaks (Natural Gas / Methane / LPG / Biogas) before flammable concentrations reach hazardous levels. Operating on continuous 5V power with live LEL digital readouts, it delivers immediate multi-tone acoustic warnings, smartphone push alerts, and can trigger emergency solenoid shutoff valves.
Why Buy This Product
Prevents Gas Explosions
Alarms at 8% LEL—long before gas reaches the 100% lower explosive threshold.
Live Digital Display
Shows exact gas concentration on the front digital screen for instant visual verification.
Automatic Valve Shutoff
Triggers an optional solenoid valve to automatically isolate the gas cylinder or main supply.
Best for These Applications
Home & Restaurant Kitchens
Mounted near gas cookers, ovens, and LPG cylinders to catch hose ruptures or unignited burners.
Boiler & Gas Water Heater Rooms
Continuous protection for commercial laundry and residential heating installations.
Key Advantages
- Automatic Emergency Valve Trip:Features dedicated output terminals to physically slam shut connected gas cutoff valves.
- Dual Methane & LPG Calibration:Can be installed high on the wall for rising natural gas or low near the floor for sinking LPG.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 0.15 |
| Shipping Weight | 0.22 |
| Sensor Category | combustible-gas-detector |
| Detection Technology | Catalytic Combustion Gas Sensor |
| Detected Gases | Natural Gas (Methane CH4), LPG (Propane / Butane), Biogas / Coal Gas |
| Gas Alarm Concentration | 8% LEL ± 3% LEL |
| Alarm Buzzer Volume | ≥ 70 dB at 1 meter |
| Optical Alarm Indicator | Digital Display Flashing + Red Strobe LED |
| Alarm Mute Function | Yes |
| Wireless Protocols | Wi-Fi 2.4GHz (IEEE 802.11 b/g/n) |
| App Compatibility | Tuya Smart, Smart Life |
| Notification Methods | Digital Display Warning, Audible Buzzer, App Push Notification, Solenoid Trigger |
| Smart Linkage Automation | Yes |
| Power Supply Type | AC Mains / DC 5V Adapter |
| Standby Current | < 150 mA |
| Alarm Current | < 300 mA |
| Installation Method | Wall Mounted (30-100cm from ceiling for methane, 30cm from floor for LPG) |
| Housing Material | Fire-Resistant ABS Engineering Plastic |
| Sensor Lifespan | 5 Years semiconductor sensor lifespan |
| Operating Temp | -10°C to 55°C |
| Operating Humidity | ≤ 95% RH |
| Dimensions | 85 x 85 x 30 mm |
| Stock | 6 |
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