FAQs:

1. Can the SR-901CN-DC automatically shut off the gas supply?

Yes. The detector provides a 12V pulse output for connecting a compatible solenoid shut-off valve. When an alarm is triggered, the valve can close the gas supply to help prevent further gas accumulation.

2. Can the detector control an exhaust fan?

Yes. Its relay output can be connected to a compatible exhaust fan, ventilation controller or external contactor. This allows the ventilation system to start when a gas alarm occurs.

3. What happens after the gas concentration returns to a safe level?

The detector automatically resets and returns to normal monitoring after the detected gas concentration falls below the alarm threshold. Manual resetting is generally not required.

4. How is product stability verified before shipment?

Both the PCBA and finished detector undergo 24-hour aging tests. The units are also tested twice with gas after the two aging stages to verify alarm response and operating consistency.

5. Is OEM or ODM customization available for project orders?

OEM and ODM options can be discussed for branding, housing markings, packaging and output configurations. MOQ, lead time and customization costs depend on the required specifications and order quantity.