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Shenzhen Wanyi Technology Co., LTD

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China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor
China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor

  1. China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor
  2. China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor
  3. China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor
  4. China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor
  5. China Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor

Voice-Prompt Multi-Gas Detector ONETEST-G40 4-in-1 Combustible O2 H2S CO Monitor

  1. MOQ: 1 Piece
  2. Price: USD 150-350 / Piece
  3. Get Latest Price
Supply Ability 5000 Pieces per Month
Operating Humidity 10~95% RH (Non-Condensing)
Dimensions 140 mm × 73 mm × 32 mm
Packaging Details ABS protective carrying case with foam insert, export-grade corrugated carton
Payment Terms T/T
Delivery Time 7-15 working days
Gas Types Monitored Combustible (0-100%LEL), O2 (0-30%VOL), H2S (0-100PPM), CO (0-1000PPM)
Operating Temperature -10℃ ~ +55℃
Housing Material ABS Engineering Plastic
Display Dot-Matrix LCD
Response Time ≤ 30 s
Operating Voltage DC 3.7V
Detection Principle Catalytic Combustion, Electrochemical, Infrared, PID
Alarm Method Real Human-Voice, Vibration, Light Alarm
Weight 205 g
Model Number G40
Place of Origin Guangdong, China
Certification GB 15322.1-2019, GB 12358-2006, GB/T 3836.1-2021
Brand Name ONETEST

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  1. Product Details
  2. Company Details

Product Specification

Supply Ability 5000 Pieces per Month Operating Humidity 10~95% RH (Non-Condensing)
Dimensions 140 mm × 73 mm × 32 mm Packaging Details ABS protective carrying case with foam insert, export-grade corrugated carton
Payment Terms T/T Delivery Time 7-15 working days
Gas Types Monitored Combustible (0-100%LEL), O2 (0-30%VOL), H2S (0-100PPM), CO (0-1000PPM) Operating Temperature -10℃ ~ +55℃
Housing Material ABS Engineering Plastic Display Dot-Matrix LCD
Response Time ≤ 30 s Operating Voltage DC 3.7V
Detection Principle Catalytic Combustion, Electrochemical, Infrared, PID Alarm Method Real Human-Voice, Vibration, Light Alarm
Weight 205 g Model Number G40
Place of Origin Guangdong, China Certification GB 15322.1-2019, GB 12358-2006, GB/T 3836.1-2021
Brand Name ONETEST
High Light Voice-Prompt Multi-Gas Detector4-in-1 Combustible Gas MonitorExplosion-Proof Bilingual Alarm Detector

ONETEST-G40 Voice-Prompt Multi-Gas Detector

The ONETEST-G40 is a professional 4-in-1 gas detector designed for continuous monitoring of combustible gas, oxygen (O2), hydrogen sulfide (H2S), and carbon monoxide (CO) concentrations in hazardous environments. Equipped with high-quality imported sensors and advanced microcomputer control technology, it delivers exceptional sensitivity and outstanding repeatability.

Key Features

  • Real Human-Voice Alarm: Bilingual (Chinese/English) voice prompts clearly announce gas hazards, complemented by vibration and visual light alarms for triple-layer safety notification.
  • 4-in-1 Detection: Simultaneously monitors combustible gas (0-100%LEL), oxygen (0-30%VOL), hydrogen sulfide (0-100PPM), and carbon monoxide (0-1000PPM).
  • Explosion-Proof Certified: Meets GB 15322.1-2019, GB 12358-2006, GB/T 3836.1-2021, and GB/T 3836.4-2021 standards for safe operation in hazardous locations.
  • Dot-Matrix LCD Display: Clear bilingual interface for quick access to gas readings and device status.
  • Rugged ABS Housing: High-strength engineering plastic with excellent impact resistance and premium finish, weighing only 205g.
  • Customizable Gas Sensors: Supports catalytic combustion, electrochemical, infrared, or PID detection principles. Additional gas types available upon request including ozone (O3), chlorine (Cl2), ammonia (NH3), and more.

Applications

Widely deployed in petroleum, chemical, environmental protection, metallurgy, oil refining, gas distribution, biochemical and pharmaceutical, agriculture, fire protection, and archaeology sectors for personnel safety and equipment protection.

Standard Gas Parameters

Gas TypeRangeLow AlarmHigh AlarmResolution
Combustible (EX)0-100%LEL20%LEL50%LEL1%LEL
Oxygen (O2)0-30%VOL19.5%VOL23.5%VOL0.1%VOL
Hydrogen Sulfide (H2S)0-100PPM10PPM35PPM1PPM
Carbon Monoxide (CO)0-1000PPM150PPM300PPM1PPM

Technical Specifications

ItemSpecification
Detection PrincipleCatalytic Combustion, Electrochemical, Infrared, PID
Display Error≤ ±5% F.S.
Response Time≤ 30 s
DisplayDot-Matrix LCD
Detection MethodDiffusion Type
Alarm MethodReal Human-Voice, Vibration, Light Alarm
Housing MaterialABS Engineering Plastic
Operating Temperature-10℃ ~ +55℃
Operating Humidity10~95% RH (Non-Condensing)
Operating VoltageDC 3.7V
Operating Pressure86~106 KPa
Weight205 g
Dimensions140 mm * 73 mm * 32 mm
Applicable StandardsGB 15322.1-2019, GB 12358-2006, GB/T 3836.1-2021, GB/T 3836.4-2021, JJF 1368-2012, JJF 1363-2019, JJF 1421-2013

Note: Standard 4-in-1 gas combination shown above. Custom gas combinations available upon request — contact us for ozone (O3), chlorine (Cl2), ammonia (NH3), and other gas sensor configurations.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2011

  • Employee Number:

    50~100

  • Ecer Certification:

    Verified Supplier

     Shenzhen Wanyi Technology Co., Ltd. is located in Guangming District, Shenzhen, a high-tech city with convenient transportation and beautiful scenery. Wanyi Technology was established in 2011, based on the promulgation of the first "Indoor Air Quality Law" in China. Shenzhen Wany...      Shenzhen Wanyi Technology Co., Ltd. is located in Guangming District, Shenzhen, a high-tech city with convenient transportation and beautiful scenery. Wanyi Technology was established in 2011, based on the promulgation of the first "Indoor Air Quality Law" in China. Shenzhen Wany...

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  • Shenzhen Wanyi Technology Co., LTD
  • Room 601, 6th Floor, Block B, Building 1, Huaqiang Creative Industry Park, Guanshang Road, Guangming Street, Guangming New District, Shenzhen City
  • https://www.cestsen.com/

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