PRODUCTS
SR-903-2 Kitchen Cooking DC9-24V Natural Gas & LPG Leak Detector
DC 9–24V natural gas and LPG detector with relay output, ≥85dB sound alarm, LED warning and MCU self-check.
Main Features:
Dual-Gas Detection for Natural Gas and LPG
Designed to detect both natural gas and liquefied petroleum gas, making it suitable for residential buildings, commercial kitchens, boiler rooms and gas safety projects.
Wide DC 9–24V Operating Voltage
The wide-voltage design supports flexible integration with different fire alarm panels, security systems and low-voltage power supplies.
Relay Output for Safety System Integration
Built-in relay output enables connection to control panels, solenoid shut-off valves, exhaust fans and other external gas safety equipment.
Intelligent MCU Processing with Self-Check
MCU-based signal processing provides stable detection, automatic reset and malfunction self-check indication for easier system maintenance.
Loud Audible and Visual Alarm
When the gas concentration reaches 10% ±5% LEL, the detector activates an ≥85dB audible alarm and flashing LED warning for rapid on-site notification.
Technical Specification:
| Model Number | SR-903-2 |
| Operating voltage | DC9-24V |
| Gas species | Natural gas &LPG |
| Standby current | less than 90mA |
| Alarm current | less than 100mA |
| Alarm output | Relay output &Sound &LED flash alarm |
| Alarm level | 10%±5% LEL |
| Sound level | ≥85dB/m |
| Installation | Ceiling mounted |
| Working environment | -10℃~+50℃(≤95%RH No congelation) |
| Dimension | 104*51mm |
FAQs：
1. What gases can the SR-903-2 detector detect?
The SR-903-2 is designed to detect both natural gas and LPG. It is suitable for residential buildings, commercial kitchens, boiler rooms, utility areas and gas safety projects.
2. Can the SR-903-2 connect to external safety equipment?
Yes. The built-in relay output can be integrated with fire alarm panels, solenoid shut-off valves, exhaust fans and other gas safety control equipment.
3. What power supply does this gas leak detector require?
The detector supports a wide DC 9–24V operating voltage, allowing flexible integration with different low-voltage alarm systems and project power supplies.
4. What happens when a gas leak is detected?
When the gas concentration reaches the specified alarm level of 10% ±5% LEL, the detector activates an audible alarm of at least 85dB, a flashing LED warning and the relay output.
5. Do you support OEM, ODM and bulk orders?
Yes. OEM and ODM services are available for overseas wholesalers, distributors and project contractors. Custom branding, packaging, specifications and bulk-order support can be discussed according to project requirements.