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 leak Detector Shield JLY-CP100 Series Manufacturers, Supplier

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Wholesale Portable Gas leak Detector Shield JLY-CP100 Series Manufacturers, Supplier

Product Overview

The JLY-CP100 combustible gas leak detector (hereinafter referred to as the leak detector) adopts advanced large-scale integrated circuit technology, international standard intelligent design technology, and proprietary digital-analog hybrid communication technology to design a fully intelligent gas leak detector. The leak detector uses a free diffusion method to detect gases, with high-quality gas sensors as the sensitive components. It has excellent sensitivity and outstanding repeatability, making it easy to use and maintain. This greatly meets the reliability requirements of industrial on-site safety monitoring equipment. The casing is made of high-strength engineering plastic, which is strong, has a good feel, and is waterproof, dustproof, and explosion-proof.

Application

This leak detector is widely used in the petroleum, chemical, environmental protection, metallurgy, refining, gas distribution, biochemical medicine, and agriculture industries.

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Product Description

Product Description & Structure

Structure and Function Overview

Five-Button Interface: Includes dedicated buttons for Lighting, Left Navigation, Right Navigation, Menu, and Power.
3 Status Indicators: Equipped with LED lights for Normal Operation, Fault Warning, and Alarm Status notifications.
Component Architecture: Constructed with a durable outer casing, main circuit board, high-capacity battery, LCD display screen, gas sensor, and integrated charger assembly.

Technical Parameters

Detection Gas Type Combustible Gas

Measurement Range 0 ~ 10,000 PPM

Response Time ≤ 30 Seconds

Explosion-Proof Mark Exib IIB T3 Gb

Indication Method Real-time LCD, LED, Sound & Vibration

Operating Voltage / Battery DC 3.7V (Lithium 2000mAh)

Standby Duration ≥ 8 Hours

Sensor Lifespan 3 Years

Shell Material ABS Housing

Working Environment -10℃ ~ 55℃; <95% RH (Non-condensing)

Dimensions 161.4 × 69 × 31 mm (Excl. probe)

Weight Approx. 270g

Precautions for Use

Prevent device drops from height and protect against severe mechanical shocks.

Extreme high concentrations of gas may temporarily affect device operation functionality.

Strictly follow manual instructions to avoid inaccurate test readings or hardware damage.

Do not store/use in corrosive gas environments (e.g., high chlorine) or extreme temperature/magnetic fields.

Clean surface with a soft, damp cloth. Avoid corrosive solvents or hard tools that scratch casing.

Calibrate regularly to ensure detection accuracy; calibration interval must not exceed 1 year.

Do not disassemble, charge, or replace battery packs in explosive gas environments.

Non-certified external plug-in devices and non-certified sensors must not be used in hazardous gas zones.

Storage & Package Accessories

Storage Requirements

Store the detector in a well-ventilated room with temperatures between -10℃ and 55℃ and relative humidity ≤85%RH. Ensure the air is free from corrosive gases or impurities.

Package Accessories

Standard delivery comes complete with: 1× Color Box, 1× Toolbox, 1× Charging Cable, 1× Charging Head, 1× User Manual, 1× Factory Test Report, 1× Explosion-proof Certificate, and 1× Certificate of Conformity & Warranty Card.

Custom Instrument Appendix

No.	Detecting Gas	Normal Range	Low Alarm	High Alarm
1	Flammable Gas	0 - 10000 PPM	500 PPM	2000 PPM

Frequently Asked Questions (FAQ)

1. What gases can the JLY-CP100 leak detector measure?

The standard JLY-CP100 detector is designed for combustible and flammable gases with a measuring range of 0 to 10,000 PPM. Custom gas configurations are also available upon request.

2. How long does the battery last on a full charge?

Equipped with a 2000mAh DC3.7V rechargeable lithium battery, the device offers a continuous standby time of 8 hours or more under normal operating conditions.

3. How often should the gas leak detector be calibrated?

To maintain high measurement accuracy and reliable performance, the detector must be calibrated regularly, with calibration intervals not exceeding one year.

4. Can I charge or replace the battery in hazardous environments?

No. For safety reasons, you must never disassemble, replace, or charge the battery pack within explosive gas environments. Always conduct charging in safe locations using the provided adapter.

5. What warning signals does the detector give during gas detection?

The device features multi-alarm methods: real-time readings on the LCD display, LED light indicators, audible sound alerts, and physical vibration alarms for gas detection, low voltage, or system fault warnings.