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.

ODM Industrial and Commercial Gas Detector SD2100A Series - Reliable Solutions by China Suppliers and Factory Manufacturers, Factories

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ODM Industrial and Commercial Gas Detector SD2100A Series - Reliable Solutions by China Suppliers and Factory Manufacturers, Factories

Product Overview

The GTYQ-SD2100A series point-type gas detector is a state-of-the-art gas monitoring solution designed for intelligent bus and branch line applications. This reliable detector, produced by leading China suppliers, integrates seamlessly with compatible controllers to create an efficient gas alarm detection system. It enables real-time monitoring of hazardous gases in the working environment, displaying the current gas concentration directly on-site. When gas levels exceed predetermined limits, the controller activates audible and visual alarm signals to ensure prompt action. Additionally, users can monitor the detector's status—normal, fault, or alarm—while having the ability to perform essential calibrations and set parameters such as high and low alarm thresholds through the controller or remote control.

Application

This advanced leak detector is extensively utilized across various industries, including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a premium gas detection solution from a reputable factory in China, it guarantees safety and compliance for businesses worldwide.

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Product Description

Product Features

Compatible with bus systems and 4-20mA distributed systems, facilitating system design and expansion.
Infrared remote control operation, no need to open the cover for on-site operation.
Three independent indicator lights, indicating normal operation / fault / alarm of the device.
Comes with linkage control output, capable of controlling on-site sound and light or fan/valve.
Dual outlet structure, convenient for on-site construction.
Built-in temperature detection function ensures accurate and effective detection of the product in various temperature environments.

Unboxing and Inspection

Standard accessories: Product manual (1 piece), factory inspection report (1 piece), product certificate (1 piece), mounting bracket (1 piece), installation accessories (1 piece).
Unboxing inspection: The product appearance has no scratches, the label is intact and clear, and the accessories are complete.

Frequently Asked Questions

Q What communication systems are compatible with this gas detector?

This gas detector is compatible with both bus systems and 4-20mA distributed systems, making it easy to integrate into existing infrastructure and support future system expansion.

Q Can the device be operated without opening the enclosure?

Yes. The device supports infrared remote control operation, so there is no need to open the cover for on-site configuration or adjustments, improving convenience and safety.

Q What do the three indicator lights represent?

The three independent indicator lights correspond to three different device states: normal operation, fault condition, and alarm status — allowing users to quickly assess the device's working condition at a glance.

Q Does the device support linkage control for external equipment?

Yes. The device comes with a built-in linkage control output that can trigger on-site sound and light alarms, or control external equipment such as fans and valves when a gas alarm is detected.

Q How does the built-in temperature detection function benefit the device?

The built-in temperature detection function allows the device to self-calibrate and compensate for temperature variations in the environment, ensuring accurate and reliable gas detection across a wide range of operating conditions.

Q What accessories are included in the standard package?

The standard package includes: a product manual (1 piece), factory inspection report (1 piece), product certificate (1 piece), mounting bracket (1 piece), and installation accessories (1 piece). Upon unboxing, please verify that the appearance is scratch-free, the label is intact and legible, and all accessories are present.

ODM Industrial and Commercial Gas Detector SD2100A Series - Reliable Solutions by China Suppliers and Factory Manufacturers, Factories

Product Description

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