Is the Lower Explosive Limit (LEL) the same as the alarm setpoint?

No. LEL is the minimum concentration at which a gas can ignite; for methane it is about 5% by volume, which equals 100% LEL on the detector scale. Alarm setpoints are set well below it, typically at or below 25% LEL for the first-level alarm, according to the local code that governs the project.

Where should a household combustible gas detector be installed?

Mount according to gas density: for natural gas (methane, lighter than air) install high, close to the ceiling; for LPG (heavier than air) install low, close to the floor. Keep the detector within a few metres of the appliance and away from extractor hoods, steam and direct airflow.

Why do oxygen detectors use %VOL instead of ppm?

Normal air contains about 20.9% oxygen by volume, so oxygen deficiency and enrichment are tracked as volume percentages. Common reference alarm points are 19.5% VOL for deficiency and 23.5% VOL for enrichment, which are far easier to read and configure in %VOL than in hundreds of thousands of ppm.

Can a Shield gas detector shut off the gas supply automatically?

Yes. Shield household detectors drive a solenoid valve when the alarm setpoint is reached, and the JYFJS-011 emergency shut-off valve can be triggered by gas alarm systems, fire-protection panels or smart terminals. The valve must be reopened manually so gas cannot return before the hazard is cleared.

What is the difference between a stand-alone and a bus-type point gas detector?

A stand-alone detector such as the SD2130 series alarms locally and drives linkage outputs without a controller, ideal for single zones. Bus or branch-line detectors such as the SD2100A series report to a gas alarm controller (SD8001A/B) installed in a non-hazardous control room for centralized multi-point monitoring.

Does Shield offer OEM and ODM gas detectors?

Yes. With 80+ marketable product models and in-house R&D, Shield supports private labelling, housing and packaging customization and configuration changes for distributors and brand owners. Request the catalog to review available platforms.

High-Quality China SD6200 Series Household Combustible Gas Detector: Reliable Suppliers and Factory Solutions for Safety Monitoring Manufacturer, Factory

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High-Quality China SD6200 Series Household Combustible Gas Detector: Reliable Suppliers and Factory Solutions for Safety Monitoring Manufacturer, Factory

The SD6200 series household combustible gas detector is an essential gas safety prevention device designed for residential applications. This advanced detector continuously monitors the concentration of combustible gases within your home. When gas levels reach or exceed the predetermined alarm threshold, it activates audible and visual alarms and triggers a solenoid valve to halt the gas supply. This innovative feature effectively prevents serious incidents such as explosions, fires, poisoning, and suffocation that can result from gas leaks or incomplete combustion. As a leading product from a trusted China supplier and factory, the SD6200 series ensures peace of mind for families by enhancing safety in domestic environments.

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Product Description

Main Features

Optical sensor, good stability, long service life
High sensitivity, anti-interference, resistance to humidity and heat
Sound and light alarm with automatic output
Automatic reminder for sensor end-of-life
Built-in alarm history function
Easy to install and use

Scope of Application

Residential household indoor use

Use of The Environment

Temperature: -10℃ ~ +55℃
Relative humidity: ≤93%RH
Ambient atmospheric pressure: 86KPa ~ 106KPa

Storage Environment

Temperature: -25℃ ~ +55℃

Frequently Asked Questions

Q What type of sensor does the SD6200 smoke detector use?

The SD6200 uses an optical sensor, which provides excellent stability, long service life, and high sensitivity to smoke particles.

Q What is the operating temperature range of the SD6200?

The SD6200 is designed to operate in temperatures ranging from -10℃ to +55℃, making it suitable for a wide range of indoor environments.

Q Does the SD6200 have an alarm history function?

Yes, the SD6200 features a built-in alarm history function, allowing users to review past alarm events for reference and safety monitoring.

Q Where is the SD6200 smoke detector suitable for use?

The SD6200 is designed for residential household indoor use, providing reliable smoke detection for home environments.

Q Does the SD6200 notify users when the sensor is nearing end-of-life?

Yes, the SD6200 includes an automatic reminder feature that alerts users when the sensor is approaching the end of its service life, ensuring continuous protection.

Q What humidity conditions can the SD6200 withstand?

The SD6200 can operate in relative humidity conditions up to ≤93%RH, and its design provides strong resistance to humidity and heat for reliable performance.

High-Quality China SD6200 Series Household Combustible Gas Detector: Reliable Suppliers and Factory Solutions for Safety Monitoring Manufacturer, Factory

Product Description

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