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.

OEM Portable Gas Detector Pen JLY-50A Series - China Suppliers & Factory for Industrial Safety Monitoring Manufacturer, Factories

1 / 4

OEM Portable Gas Detector Pen JLY-50A Series - China Suppliers & Factory for Industrial Safety Monitoring Manufacturer, Factories

Product Overview

The JYL-50A portable gas detector is a cutting-edge device designed and manufactured in China, utilizing advanced large-scale integrated circuit technology and intelligent design principles. This fully intelligent gas detector boasts proprietary digital-analog hybrid communication technology, making it an indispensable tool for safety monitoring in industrial environments. Equipped with high-quality gas sensors, it employs a free diffusion method for gas detection, ensuring exceptional sensitivity and remarkable repeatability. Its user-friendly design and low maintenance needs meet the reliability standards required for industrial safety. The robust casing, made from high-strength engineering plastic, provides waterproof, dustproof, and explosion-proof protection, ensuring durability in demanding conditions.

Application

This gas detector is an essential device for various industries including petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture. As a leading supplier and factory for gas detection solutions in China, we adhere to national standards for design, manufacturing, and inspection, ensuring quality and safety for all users.

Send Inquiry

Product Description

Special Functions

Powered by 3V batteries (two AA batteries)
The sensor unit is equipped with built-in temperature compensation and calibration coefficients, featuring high precision and good linearity
It can provide outstanding stability and response recovery speed
The LCD displays the measured value of gas concentration, accompanied by two-pole alarm color prompts
It is equipped with simple calibration, automatic verification and zeroing, as well as automatic compensation programs
Anti-radiation/electromagnetic interference, reducing false alarms
The buzzer alarm indicates two levels of concentration alarm
The LCD indicates that the battery status needs to be replaced
Miniaturized design, economical and practical, convenient for use and maintenance

Leak Detector Structure

The device mainly consists of components such as the casing, circuit board, battery, display screen, and sensors.

Working Principle

Catalytic combustion type.

Frequently Asked Questions

Q1 What type of batteries does this gas leak detector use?

The detector is powered by 3V batteries, specifically two AA batteries. The LCD screen will also display a battery replacement reminder when the battery level is low, ensuring you are always informed.

Q2 What is the working principle of this gas leak detector?

This gas leak detector operates on the catalytic combustion principle. This method is widely recognized for its reliability and accuracy in detecting combustible gas concentrations in the surrounding environment.

Q3 How does the alarm system work on this detector?

The detector features a dual-level alarm system. The buzzer provides audible alerts at two different concentration levels, and the LCD screen displays corresponding two-pole color prompts, allowing users to quickly assess the severity of a gas leak situation.

Q4 Does this detector require manual calibration?

The device is equipped with a simple calibration process along with automatic verification, zeroing, and compensation programs. This minimizes the need for complex manual adjustments while maintaining measurement accuracy over time.

Q5 Can this detector be affected by electromagnetic interference?

The detector is designed with anti-radiation and anti-electromagnetic interference capabilities. This feature significantly reduces the occurrence of false alarms caused by external electrical or radio-frequency interference in industrial or home environments.

Q6 What are the main components of this gas leak detector?

The device is composed of several key components including the casing, circuit board, battery compartment, LCD display screen, and gas sensors. Its miniaturized design makes it economical, practical, and easy to use and maintain in everyday applications.

OEM Portable Gas Detector Pen JLY-50A Series - China Suppliers & Factory for Industrial Safety Monitoring Manufacturer, Factories

Product Description

Related Products

ODM Portable Gas Leak Detector JLY-CP100 Series - Reliable China Suppliers & Factory for Industrial Safety Solutions Manufacturers, Supplier

High-Quality China JYFJS-011 Aluminum Alloy Electromagnetic Gas Emergency Shut-off Valve - Top Suppliers & Factory Manufacturers, Factories

High-Quality Household Combustible Gas Detector SD6103K Series - Safety Solution from China Suppliers and Factory Manufacturer, Suppliers

OEM China SD6101 Series Household Combustible Gas Detectors - Reliable Safety Solutions from Trusted Suppliers and Factory Manufacturers, Factories

OEM China SD6200 Series Household Combustible Gas Detector: Reliable Suppliers and Factory Solutions for Safety Monitoring Manufacturer, Suppliers

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

ODM China Industrial and Commercial Gas Detector SD2100E Series - Suppliers & Factory for Real-Time Gas Monitoring Suppliers, Factories

High-Quality 4 in 1 Portable Gas Detector Shield BTYQ-Z4 Series - Reliable China Suppliers and Factory Solution for Safety Monitoring Supplier, Suppliers

High-Quality China SD2100A Series Industrial and Commercial Gas Detectors - Reliable Suppliers and Factory Quality Solutions Manufacturers, Suppliers

OEM Portable Gas Detector Pen JLY-50A Series - High-Quality Equipment from China Suppliers & Factory Factory, Factories