Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
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28
Aug
2026
Four Non‑Negligible Notes for Gas Detectors
Four Non‑Negligible Notes for Gas Detectors Compact‑sized and easy‑to‑operate, gas detectors can deliver optimal performance only when operated properly. The following four points
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27
Aug
2026
Troubleshooting Methods for Combustible‑Gas Detectors
Troubleshooting Methods for Combustible‑Gas Detectors Combustible‑gas detectors respond to the concentration of single or multiple combustible gases. Two main types are available:
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27
Aug
2026
Several Main Advantages for Hydrogen Sulfide Detectors
Several Main Advantages for Hydrogen Sulfide Detectors Hydrogen sulfide gas detectors have numerous advantages that provide important guarantees for their application, which mainly
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27
Aug
2026
Special Points for Attention When Using Portable Gas Detectors
Special Points for Attention When Using Portable Gas Detectors With continuous improvement of living standards, consumers are paying increasing attention to ambient air quality, an
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27
Aug
2026
What Does “PPM” Mean in Gas Detectors and Equipment Maintenance
What Does "PPM" Mean in Gas Detectors and Equipment Maintenance What does "PPM" stand for in gas detectors? PPM refers to volume‑ratio concentration, meaning one part per million.
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27
Aug
2026
Important Notes on Operation of Toxic Gas Detectors
Important Notes on Operation of Toxic Gas Detectors ① Applicability Professional property‑management personnel shall identify and evaluate hazardous gases in confined domestic spac
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27
Aug
2026
Working Principle and Measuring Ranges of Toxic Gas Detectors
Working Principle and Measuring Ranges of Toxic Gas Detectors With the development of industrial society, a large quantity of toxic gases may be generated during production in many
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27
Aug
2026
Gas Types and Measuring Ranges of Four‑in‑One Gas Detectors
Gas Types and Measuring Ranges of Four‑in‑One Gas Detectors The four‑in‑one gas detector can simultaneously measure oxygen, hydrogen sulfide, carbon monoxide and combustible gases.
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27
Aug
2026
Measuring Ranges of Toxic and Hazardous Gas Detectors
Measuring Ranges of Toxic and Hazardous Gas Detectors Toxic and hazardous gas detectors are critical instruments used to monitor and measure the concentration of harmful gases in t
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27
Aug
2026
Classifications and Typical Products of Gas Detection Instruments
Classifications and Typical Products of Gas Detection Instruments Gas‑detection instruments form a broad product category referring to instruments for measuring gas‑leak concentrat
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27
Aug
2026
Six Selection Criteria for Gas Detectors
Six Selection Criteria for Gas Detectors ① Stability Stability is an essential and primary consideration. Check the values of zero‑point offset and full‑scale offset; the smaller t
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26
Aug
2026
What Is the Measuring Range of Toxic and Hazardous Gas Detectors
What Is the Measuring Range of Toxic and Hazardous Gas Detectors Toxic and hazardous gas detectors are critical instruments for monitoring and measuring the concentration of harmfu
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26
Aug
2026
Aspects to Note When Using a Combustible Gas Detector
Aspects to Note When Using a Combustible Gas Detector ① Before using a combustible gas detector, identify all potential leakage points of the equipment. Analyze factors such as lea
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26
Aug
2026
Reasons for Malfunctions of Combustible Gas Detectors
Reasons for Malfunctions of Combustible Gas Detectors Fault causes occurring during the installation and operation of combustible gas detectors are rather complicated. Main contrib
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26
Aug
2026
Features and Functions of Four‑in‑One Gas Detectors
Features and Functions of Four‑in‑One Gas Detectors A combustible gas detector is a device that senses hazardous gases and alerts personnel to potential hazards, providing preventi
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26
Aug
2026
How to Ensure the Operational Stability of Multi‑Gas Detectors
How to Ensure the Operational Stability of Multi‑Gas Detectors For multi‑gas detectors, service life is mainly determined by their sensors. As is known, no single sensor can detect
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26
Aug
2026
Differences Between Multi‑Gas Detectors and Toxic‑Gas Alarms
Differences Between Multi‑Gas Detectors and Toxic‑Gas Alarms ① Multi‑Gas Detector Multi‑gas detectors are applied for concentration measurement of various mixed gases in diverse in
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26
Aug
2026
Definition of LEL%, VOL% and ppm for Gas Detectors
Definition of LEL%, VOL% and ppm for Gas Detectors Ⅰ. VOL% (Gas Volume Percentage) VOL is a physical unit used to describe gas volume in percentage terms. It refers to the volume p
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26
Aug
2026
What Is the Service Life of Gas Detector Sensors
What Is the Service Life of Gas Detector Sensors Many users are unaware of the service life of gas detectors after purchase, and some even assume that the device can work permanent
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26
Aug
2026
Three Important Notes on Operation of Portable Gas Detectors
Three Important Notes on Operation of Portable Gas Detectors Portable gas detectors are widely applied in petrochemical industry, industrial production, flue‑gas and exhaust‑gas en
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