What gas safety products does Shield manufacture?

Shield designs and manufactures household combustible gas detectors, industrial and commercial point-type combustible gas detectors, gas alarm controllers, portable and 4-in-1 multi-gas detectors, and solenoid gas shut-off valves. The portfolio covers more than 80 marketable models that can be combined into complete detect-alarm-shut-off systems.

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

No. The LEL is the lowest gas concentration in air that can ignite. Combustible gas detectors read in %LEL and trigger alarms well below that limit. Alarm set points are commonly configured in the range of about 20-25% LEL for the first alarm and up to about 50% LEL for the second alarm, but the final values must follow the standard that applies in your country and project.

Why do oxygen detectors display %VOL instead of ppm?

Normal air contains about 20.9% oxygen by volume, so oxygen deficiency or enrichment is measured in percentage by volume (%VOL). A ppm scale is designed for trace-level toxic gases and would be impractical for oxygen monitoring during pipe welding or confined-space work.

How does a gas detector work with a solenoid shut-off valve?

When the detector or gas alarm controller registers a concentration above the alarm value, it emits an audible and visual alarm and sends a linkage signal that closes the solenoid gas shut-off valve. Shield shut-off valves such as the JYFJS-011 series require manual reopening, so gas supply is only restored after the cause of the leak has been checked.

Does Shield support OEM and ODM orders for distributors?

Yes. Shield supports OEM and ODM cooperation. Branding, packaging, documentation and project-specific configuration such as target gas, alarm values and linkage outputs are reviewed and confirmed with our engineering team before sampling and mass production.

Which certifications do Shield products hold?

Applicable Shield products have been awarded China's mandatory 3C certification, and the company holds more than 40 patents. For export projects, our sales engineers confirm the test reports and compliance documents required in the destination market before an order is placed.

OEM Household Combustible Gas Detector Shield SD6103K Series Manufacturer, Factory

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OEM Household Combustible Gas Detector Shield SD6103K Series Manufacturer, Factory

The JT-SD6103k household combustible gas detector (hereinafter referred to as "detector") is a kind of safety precautionary product suitable for the use of residential households, which is used for continuously detecting the concentration of indoor combustible gases, and when the concentration of combustible gases in the environment reaches or exceeds the alarm value, it will send out acoustic and visual alarm signals, and activate the solenoid valve to cut off the gas source, so as to avoid explosions, fires, poisonings, suffocations, and other vicious accidents due to the leakage or incomplete combustion of the gas, and other reasons.

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Product Description

Main Features

Semiconductor and electrochemical sensors, good stability and long service life.
High sensitivity, anti-interference, resistance to humidity and heat.
Audio-visual alarm and automatic output.
Automatic reminder of sensor life expiration.
Built-in alarm history function.
Easy to install and use.

Application & Environment

Scope of Application:

Indoor use in residential homes

Use of The Environment:

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

Storage Environment:

Temperature: -25℃ ~ +55℃

Technical Parameters

Detection principle	Semiconductor + electrochemical
Gas type detected	Methane (natural gas) + Carbon monoxide (artificial gas)
Alarm setpoint	Methane
Detection range	Methane
Carbon monoxide	0 ~ 1000*10-6 (volume fraction)
Alarm mode	Sound and light alarm
Power supply	AC220V ± 15% (50Hz)
Power	< 3W
Response time (T90)	Methane ≤ 30s \| Carbon monoxide ≤ 60s
Detector life	Five years (typical)
Installation	Wall-mounted or ceiling-mounted
Product size	φ 100 × 42mm
Product weight	About 112g

More Details & Installation

Unpacking and Inspection

Machine accessories: Product manual (1 piece), product certification (1 piece), mounting plate (1 piece), mounting screws accessories (1 piece).
Open the box and check: No scratches on the appearance of the product, the label is complete and clear, and the accessories are complete.

Installation Instructions

Place of Origin	Sichuan, China
Brand Name	SHIELD
Model Number	SD6200
Feature	Sound and light alarm & communication & self-check
Material	ABS
Alarm Type	Sound-Light alarm
Detection Range	/
Sensor Type	Laser sensor
App Support	Mobile phone communication alarm
Detect Gas	Methane
Detection Range	Methane: 3-100%LEL
Alarm Point	Methane: 10%LEL
Service Life	5 Years (typical)
Power Supply	AC220V + 15% (50Hz)
Installation	Wall-mounted
Alarm Mode	Sound and Light Alarm
Communication Mode	NB-IoT / 4G
Optional Plug	EU / US / UK / AU / Other
Size	(Diameter) 90 × 39mm

Frequently Asked Questions (FAQ)

What types of gas can this detector detect?

This unit is designed to detect both Methane (natural gas) and Carbon Monoxide (artificial gas) using high-precision semiconductor and electrochemical sensors.

How long is the service life of the gas detector?

The typical service life of the detector is 5 years. It features an automatic built-in reminder system when the sensor life is expiring.

What type of alarm does the device trigger during gas leaks?

The device alerts users through an audio-visual (sound and light) alarm mode alongside automatic signal output and mobile phone communication alarms (supported on NB-IoT/4G models).

How is the product installed in residential areas?

The product can be easily wall-mounted or ceiling-mounted using the included mounting plate and screw accessories.

What are the operating environment requirements?

It operates reliably in temperatures ranging from -10℃ to +55℃, relative humidity levels ≤ 93%RH, and atmospheric pressure between 86KPa and 106Kpa.

What is included in the package upon unpacking?

The package includes 1 product manual, 1 product certification, 1 mounting plate, and 1 set of mounting screw accessories.

OEM Household Combustible Gas Detector Shield SD6103K Series Manufacturer, Factory

Product Description

Product Description

Main Features

Application & Environment

Technical Parameters

More Details & Installation

Unpacking and Inspection

Installation Instructions

Frequently Asked Questions (FAQ)

What types of gas can this detector detect?

How long is the service life of the gas detector?

What type of alarm does the device trigger during gas leaks?

How is the product installed in residential areas?

What are the operating environment requirements?

What is included in the package upon unpacking?

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