PRODUCTS
SR-909 4-in-1 Carbon Monoxide & Natural Gas Detector with Large Digital Real-Time Display
SR-909 monitors CO, natural gas, temperature and humidity with a large real-time display and ≥85dB alarm.
Main Feature
4-in-1 Real-Time Safety Monitoring: Monitors carbon monoxide, natural gas, temperature and humidity in one compact detector for convenient indoor safety monitoring.
Large Digital Real-Time Display: The clear color screen displays CO concentration, gas level, temperature and humidity, allowing users to check environmental conditions at a glance.
Sensitive CO & Natural Gas Detection: Built with a reliable electrochemical sensor and intelligent microprocessor for stable detection and fast response to gas concentration changes.
≥85dB Audible & Visual Alarm: Provides a loud ≥85dB warning together with flashing red indicator lights to help alert occupants when abnormal gas levels are detected.
Compact Plug-In Design: Approx. 75 × 79 × 35 mm compact housing with direct plug-in power, low power consumption and easy installation for kitchens, apartments and residential projects.
Technical Specification
| Model No. | SR-909 | Product Name | 4-in-1 Detector |
|---|---|---|---|
| Supply Voltage | AC 110–220V | Static Power Consumption | ≤2W |
| Alarm Power Consumption | ≤3W | CO Alarm Concentration | 150 ppm |
| CO Range | 0–2000 ppm | Gas for Alarm | Carbon Monoxide |
| Minimum Display Concentration | >0 ppm | GAS Detection Concentration Range | 0–10% LEL |
| GAS Alarm Concentration | 5% LEL | Operating Environment | -10°C to +55°C, RH ≤95%, No Condensation |
| Storage Environment | -25°C to +55°C, RH ≤95%, No Condensation | Alarm Indication | Red Light Flashes + Audible Alarm |
| Self-Inspection Button | Press the button; red light flashes and alarm sounds normally | Dimension | 75 × 79 × 53 mm |
| Preheating Countdown | 180 s | Temperature Display Range | 1–176°F (±4°F) |
| Humidity Display Range | 0–99% (±5%) |
FAQs
1. What does the SR-909 4-in-1 detector monitor?
The SR-909 combines carbon monoxide, natural gas, temperature and humidity monitoring in one unit. Its large digital screen provides real-time information for residential and light commercial applications.
2. What are the detection ranges of the SR-909?
The CO detection range is 0–2000 ppm, while the combustible gas display range is 0–10% LEL. The CO warning concentration is specified at 150 ppm, and the natural gas alarm activates at approximately 5% LEL.
3. How is the SR-909 installed and powered?
The SR-909 uses a direct plug-in design with an AC110–220V power supply. No separate battery installation or complicated wiring is required, making it suitable for bulk residential and retrofit projects.
4. How does the SR-909 alert users to dangerous gas levels?
When an alarm condition is detected, the detector provides an audible alarm of ≥85dB together with flashing red indicator lights and a digital concentration display for clear visual confirmation.
5. Is the SR-909 suitable for OEM/ODM and wholesale projects?
Yes. The SR-909 is suitable for distributors, wholesalers, private-label brands and project customers. OEM/ODM requirements such as branding, packaging and project-specific configurations can be discussed according to order requirements.