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 Gas Alarm Controller Shield 8001AB Series - Reliable Gas Detection System from China Suppliers & Factory Supplier, Suppliers

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ODM Gas Alarm Controller Shield 8001AB Series - Reliable Gas Detection System from China Suppliers & Factory Supplier, Suppliers

Product Overview

The SD8001A/SD8001B series gas alarm controllers, along with gas detectors, create an advanced gas safety detection system designed for centralized monitoring of gas detection and alarm functionalities. Our gas detectors are strategically installed in both indoor and outdoor hazardous areas where gas leaks may occur, while the controllers are placed in safe locations, specifically in non-explosion-proof areas such as control rooms.

Application

This leak detector is extensively utilized across various industries, including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading manufacturer and supplier in China, our factory is committed to providing high-quality gas detection solutions that enhance safety and compliance in industrial operations.

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Product Description

Key Highlights

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;

Package Contents

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 types of bus communication does this product support?

This product supports four-wire, three-wire, and two-wire bus communication, offering flexible options to match different installation requirements and budget considerations.

Can this device be monitored remotely via a computer?

Yes. The product supports network monitoring through an upper computer, enabling centralized management and real-time data access from a connected PC or server.

What is included in the installation accessories package?

The package includes a 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 product upon unboxing?

Upon unboxing, please verify that the product appearance is free of scratches or damage, the label is complete and clearly legible, and all listed accessories are present and accounted for.

What advantage does two-wire bus communication offer over other wiring types?

Two-wire bus communication significantly reduces construction costs by minimizing the amount of cabling required, making it an economical choice for large-scale or budget-sensitive installations.

Does the product support large-scale data logging?

Yes. The device features large capacity data logging with simultaneous saving functionality, ensuring that all recorded data is stored reliably and efficiently without data loss during operation.

ODM Gas Alarm Controller Shield 8001AB Series - Reliable Gas Detection System from China Suppliers & Factory Supplier, Suppliers

Product Description

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