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.

High-Quality China Gas Alarm Controller Shield 8001AB Series - Reliable Suppliers and Factory for Gas Safety Solutions Manufacturers, Supplier

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High-Quality China Gas Alarm Controller Shield 8001AB Series - Reliable Suppliers and Factory for Gas Safety Solutions Manufacturers, Supplier

Product Overview

The SD8001A/SD8001B series gas alarm controllers, along with gas detectors, form a comprehensive gas safety detection system that ensures centralized monitoring for gas detection and alarms. These advanced gas detectors are strategically installed in both indoor and outdoor hazardous areas where gas leaks may occur, while the controllers are situated in safe, non-explosion-proof environments, typically in control rooms.

Application

Our leak detector systems are extensively utilized across various industries, including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading supplier and factory in China, we pride ourselves on providing high-quality gas detection solutions tailored to meet the needs of diverse industrial applications.

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Product Description

Product Features

Four-wire bus communication for easy system design and expansion
Three-wire bus communication reduces construction costs and meets split-wire modifications
Two-wire bus communication for low construction costs
Realize network monitoring with the upper computer
Large capacity data logging with simultaneous saving

Unboxing and Inspection

Installation Accessories

Product manual (1pc), product certification (1pc), mounting plate, factory inspection report, main power fuse, backup fuse, expansion screws, key.

Unpacking and Inspection

The product appearance is free of scratches, the label is complete and clear, and the accessories are complete.

Frequently Asked Questions

What bus communication types does the 8001A support?

The 8001A supports three types of bus communication: four-wire bus, three-wire bus, and two-wire bus. Each option is designed to accommodate different installation scenarios, balancing system complexity and construction costs.

Can the 8001A be monitored remotely via an upper computer?

Yes. The 8001A supports network monitoring through an upper computer, enabling centralized management and real-time status visibility across connected devices.

What is the data logging capability of the 8001A?

The 8001A features large-capacity data logging with simultaneous saving, ensuring that critical operational data is recorded reliably without loss during high-load events.

What accessories are included in the 8001A package?

The package includes: product manual (1pc), product certification (1pc), mounting plate, factory inspection report, main power fuse, backup fuse, expansion screws, and a key.

How should I inspect the 8001A upon delivery?

Upon receiving the product, verify that the appearance is free from scratches or physical damage, confirm that the label is complete and clearly legible, and check that all listed accessories are present in the package.

Is the two-wire bus option suitable for budget-sensitive installations?

Yes. The two-wire bus communication option is specifically designed for low construction cost scenarios, making it an ideal choice for cost-sensitive projects while still maintaining reliable system performance.

High-Quality China Gas Alarm Controller Shield 8001AB Series - Reliable Suppliers and Factory for Gas Safety Solutions Manufacturers, Supplier

Product Description

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