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.

Wholesale Portable Gas Detector Shield SD3001 Series - Reliable Safety Monitoring from China Suppliers and Factory Manufacturer, Supplier

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Wholesale Portable Gas Detector Shield SD3001 Series - Reliable Safety Monitoring from China Suppliers and Factory Manufacturer, Supplier

Product Overview

Introducing the SD3001 Portable Gas Detector, a state-of-the-art device engineered in China by leading suppliers and manufacturers. This advanced gas detector utilizes cutting-edge integrated circuit technology, adhering to international standards with smart design principles and proprietary digital-analog hybrid communication technology. Designed for utmost efficiency, the detector employs natural diffusion for gas detection, integrating high-quality gas sensors that ensure exceptional sensitivity and remarkable repeatability. User-friendly and low maintenance, the SD3001 meets the stringent reliability standards required for industrial safety monitoring. Crafted from high-strength engineering plastic, it boasts a robust and ergonomic design while being waterproof, dustproof, and explosion-proof.

Application

This reliable gas detector is ideal for a wide range of applications across various industries, including petroleum, chemical processing, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. Partner with a trusted factory in China to enhance safety and monitoring in your industrial operations.

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Product Description

Structure and Function Comparison Table

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

What are the main structural components of the BTYQ-SD3001 detector?

The BTYQ-SD3001 detector is composed of several key components: the outer shell, circuit board, battery, LCD display screen, gas sensor, and a charging port. These elements work together to ensure reliable gas detection performance.

What working principles does the BTYQ-SD3001 detector use?

The detector operates using two working principles: electrochemical type and catalytic combustion type. These technologies allow it to accurately detect a wide range of gas types in various environments.

What do the alarm indicator light windows (areas 1, 2, 3) indicate?

The alarm indicator light windows are located in areas 1, 2, and 3 of the device. They provide visual alerts when the gas concentration reaches a warning or danger threshold, helping users respond quickly to potential hazards.

What is the function of the gas sensing hole (area 7)?

The gas sensing hole in area 7 is the entry point where ambient air or gas samples are drawn into the detector. The internal sensor then analyzes the gas composition and concentration to deliver accurate readings on the LCD screen.

How is the BTYQ-SD3001 detector charged?

The BTYQ-SD3001 is equipped with a dedicated charging port located in area 8. Users can connect the appropriate charger to recharge the internal battery, ensuring the device is always ready for use in the field.

What information is displayed on the LCD screen (area 9)?

The LCD screen in area 9 displays real-time gas concentration readings, alarm status, battery level, and other relevant operational data. It provides users with clear and immediate feedback during gas detection activities.

Wholesale Portable Gas Detector Shield SD3001 Series - Reliable Safety Monitoring from China Suppliers and Factory Manufacturer, Supplier

Product Description

Structure and Function Comparison Table

Structure of the Detector

Working Principle

Frequently Asked Questions

What are the main structural components of the BTYQ-SD3001 detector?

What working principles does the BTYQ-SD3001 detector use?

What do the alarm indicator light windows (areas 1, 2, 3) indicate?

What is the function of the gas sensing hole (area 7)?

How is the BTYQ-SD3001 detector charged?

What information is displayed on the LCD screen (area 9)?

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