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 China SD3001 Portable Gas Detector - Reliable Suppliers & Factory for Industrial Safety Monitoring Suppliers, Factories

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ODM China SD3001 Portable Gas Detector - Reliable Suppliers & Factory for Industrial Safety Monitoring Suppliers, Factories

Product Overview

Introducing the SD3001 Portable Gas Detector, a cutting-edge solution designed with advanced large-scale integrated circuit technology. This fully intelligent gas detector features international standard intelligent design and proprietary digital-analog hybrid communication technology. Utilizing natural diffusion for gas detection, it incorporates high-quality gas sensors for exceptional sensitivity and repeatability. User-friendly and low-maintenance, it perfectly meets the reliability standards of industrial safety monitoring equipment. The robust shell is crafted from high-strength engineering plastic, ensuring durability while being waterproof, dustproof, and explosion-proof.

Applications

The SD3001 Portable Gas Detector is an essential tool for various industries, including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. Sourced from trusted China suppliers and manufactured in our state-of-the-art factory, this detector guarantees top-quality performance for safety monitoring in diverse industrial settings.

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Product Description

Structure and Function Comparison Table

BTYQ-SD3001 Gas Detector Structure Diagram

Serial Number	Area Name
1, 2, 3	Alarm indicator light window
4	Left click
5	Middle button
6	Right-click
7	Gas sensing hole
8	Charging port
9	LCD screen

Structure of the Detector

The main components are the shell, circuit board, battery, display screen, sensor, and charger.

Working Principle

Electrochemical type and catalytic combustion type.

Frequently Asked Questions (FAQ)

What are the main components of this detector's structure?

The main components of the detector include the shell, circuit board, battery, display screen, sensor, and charger.

What are the working principles of the detector?

The detector operates using two primary detection methods: the Electrochemical type and the Catalytic Combustion type.

What is the purpose of the alarm indicator light window?

The alarm indicator light window (indicated by Serial Numbers 1, 2, and 3) serves to visually alert users when hazardous gas levels are detected.

Where is the gas sensing hole located on the BTYQ-SD3001?

The gas sensing hole is designated as Serial Number 7, positioned to allow ambient air to reach the internal sensor effectively.

Does the device feature a display screen for real-time readings?

Yes, the detector is equipped with an LCD screen (Serial Number 9) to display gas concentration levels and system status.

ODM China SD3001 Portable Gas Detector - Reliable Suppliers & Factory for Industrial Safety Monitoring Suppliers, Factories

Product Description

Structure of the Detector

Working Principle

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