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 SD2100E Series - Reliable China Suppliers & Factory Solutions Factory, Factories

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ODM Industrial and Commercial Gas Detector SD2100E Series - Reliable China Suppliers & Factory Solutions Factory, Factories

Product Overview

The GTYQ-SD2100E/GTQ-SD2100E/GQ-SD2100E series point gas detectors are cutting-edge devices designed for intelligent bus systems and split-wire products. These detectors work seamlessly with controllers to establish a comprehensive gas alarm detection system. They provide real-time monitoring of target gases that may exist in various environments, displaying gas concentration levels on-site. When concentrations exceed preset limits, the controller activates acoustic and visual alarm signals. The status of the detector—normal, fault, or alarm—can be easily monitored through the controller, which also allows for the configuration of parameters such as zero calibration, concentration calibration, and high/low limit alarm values using either the controller or an infrared remote control.

Applications

This advanced gas leak detector is extensively utilized across various industries, including petroleum, chemicals, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading product from China, our gas detectors are manufactured by trusted suppliers and factories dedicated to quality and safety.

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Product Description

Product Features

Adapted to bus system and 4-20mA split line system, convenient for system design and expansion.
Sensor modules are replaceable, reducing use and maintenance costs.
Infrared remote control for on-site operation without opening the lid.
Digital tube display, real-time display of gas concentration and equipment status.
With its own linkage control output, it can control the sound and light or fan/valve on site.
Double outlet structure for easy on-site construction.
Built-in temperature detection function, to ensure that the product in a variety of temperature environment detection is accurate and effective.

Unboxing and Inspection

Accessories for the whole machine: product manual (1 pc), factory inspection report (1 pc), certificate of conformity (1 pc), mounting plate (1 pc), mounting fittings (1 pc).
Open the box and check: no scratches on the appearance of the product, the label is complete and clear, and the accessories are complete.

Frequently Asked Questions

What communication interfaces does the 2100E gas detector support?

The 2100E gas detector supports both bus system communication and 4-20mA split line system, making it flexible and convenient for a wide range of system designs and future expansions.

Can the sensor module of the 2100E be replaced on-site?

Yes, the sensor modules of the 2100E are designed to be replaceable. This significantly reduces long-term use and maintenance costs, as users can swap out sensors without replacing the entire unit.

How is the 2100E operated on-site without opening the enclosure?

The 2100E features an infrared remote control function, allowing operators to perform on-site adjustments and operations without needing to open the device lid, which improves safety and convenience in the field.

Does the 2100E support linkage control of external devices?

Yes, the 2100E has a built-in linkage control output that can directly control on-site sound and light alarms, as well as fans or valves, enabling automated responses when gas concentration thresholds are exceeded.

Does the 2100E have temperature compensation for accurate detection?

Yes, the 2100E includes a built-in temperature detection function. This ensures that gas concentration readings remain accurate and reliable across a wide range of operating temperature environments.

What accessories are included in the 2100E package?

The 2100E package includes: a product manual (1 pc), a factory inspection report (1 pc), a certificate of conformity (1 pc), a mounting plate (1 pc), and mounting fittings (1 pc). Users are advised to verify all accessories upon unboxing.

ODM Industrial and Commercial Gas Detector SD2100E Series - Reliable China Suppliers & Factory Solutions Factory, Factories

Product Description

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