Diffusion 4 in 1 Gas Detector Portable Multi Gas Detector Co H2s Oxygen Ex Meter

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: None
• Brand: Juge
• Customized: Customized
• Portable: Portable
• Certification: CE
• Gas: OEM
• Type: Electrochemical Gas Analyzer
• Measured Gas: O2, Co, H2s, Ex
• Principle: Electrochemical
• Detection Range: Ppm, %Vol
• Detection Method: Diffusion
• Display: TFT Color LCD Screen
• Transport Package: Carton
• Specification: 119.6 x 60 x 44 mm (L x W x H)
• Origin: Nanjing
• Production Capacity: 5000piece/Month

Product Description

Product Description

Diffusion 4 in 1 Gas Detector Portable Multi Gas Detector CO H2S Oxygen Ex Meter
 

>>Overview

The Portable Gas Detector is equipped with original imported sensors and a new 32-bit low-power ARM processor, it features a 1.77-inch TFT LCD screen that delivers clear, intuitive, and aesthetically pleasing displays. With three-button control, it offers excellent human-machine interaction for simple and convenient operation. The device supports dual-language selection (Chinese/English) and combines icons with text menu displays for practicality, intuitiveness, and elegance. It provides timely, accurate, and reliable alerts through audible, visual, and vibration alarms. Designed with a unique duckbill-style back clip for secure and convenient carrying, it supports USB charging for easy recharging. The built-in LED lighting function provides illumination during emergencies. Featuring an explosion-proof structural design, it is suitable for various hazardous industrial environments. This product is widely used in metallurgy, petroleum/petrochemical industries, municipal facilities, chemical wastewater treatment, and other sectors requiring continuous monitoring of flammable, explosive, toxic, and harmful gases.
 

>>Features

○ Original imported high-performance sensors ensure high measurement accuracy, excellent stability, repeatability, and long service life;
○ TFT LCD display with rich content and crisp screen clarity;
○ Configurable high and low alarm settings;
○ Built-in embedded 32-bit ultra-low-power processor and proprietary signal processing algorithms for rapid response;
○ Factory reset function to prevent accidental misoperation;
○ Three buttons rated for 100,000 presses, offering easy and intuitive operation;
○ Audible, visual, and vibration alarms provide multi-sensory alerts to ensure no oversight or omissions;
○ Capable of detecting a wide range of gas types;
○ LED indicator function illuminates the device's location in low-light conditions;
○ USB charging compatibility with standard USB devices;
○ PC + TPU anti-static housing design ensures wear resistance, corrosion resistance, and adaptability to harsh industrial environments, paired with a scientifically optimized gas chamber for real-time monitoring accuracy;
○ Unique back clip design for secure portability and reduced risk of accidental drops or loss.

 

>>Main technical parameters
 

Name	Item
Detected Gases	Oxygen: Measuring range: 0%~30%; Carbon Monoxide (CO): 0ppm~500ppm; Hydrogen Sulfide (H2S): 0ppm~100ppm; Combustible Gas: 0-100%LEL
Detection Principle	Electrochemical
Detection Method	Diffusion
Display	TFT color LCD screen
Display Units	ppm, %VOL
Accuracy	≤±3% FS (Full Scale)
Operation	Button control
Alarm Modes	Audible, visual, and vibration alarms (>75dB@25cm)
Warm-up Time	≤90 seconds
Response Time	T90 ≤30 seconds
Recovery Time	≤20 seconds
Material	PC + TPU (anti-static)
Operating Temperature	-20ºC to +50ºC (toxic gases); -20ºC to +70ºC (combustible gas)
Operating Humidity	≤95% RH (non-condensing)
Charger	Travel charger with USB interface (USB power supply DC5V), charging temperature range: 0~40ºC
Power Supply	Built-in high-performance lithium battery (nominal voltage: 3.7VDC)
Charging Time	≤6 hours (standard); 12 hours (full charge)
Continuous Operation	>8 hours (under normal conditions, without alarms)
Power Consumption	<0.7W
Operating Pressure	86~106 kPa
Dimensions	119.6 x 60 x 44 mm (L x W x H)
Weight	Approx. 182g
Compliance Standards	GB3836.1-2010, GB3836.2-2010, GB3836.4-2010, MT 704-2008, MT 703-2008, MT 1084-2008, GB 15322.3-2003
Warranty	1-year warranty period; free repairs during the warranty period

 

>>List of Commonly Detected Gas Types

NO	Detection	Range	Accuracy	T90 Response time	Resolution	Alarm set point (low/high)
1	PH3	0 - 5 ppm	±5% (F.S)	≤ 25 s	0.01 ppm	0.3 ppm/5 ppm
2	O2	0-30%Vol	±5% (F.S)	≤ 15 s	0.10% Vol	18.0%Vol/23.0%Vol
3	EX	0-100% LEL	±5% (F.S)	≤ 15 s	1% LEL	25.0%/50.0% LEL
4	CO	0 - 2000 ppm	±5% (F.S)	≤ 25 s	1 ppm	50 ppm/100 ppm
5	H2S	0 -100 ppm	±5% (F.S)	≤ 30 s	1 ppm	10 ppm/20 ppm
6	SO2	0 - 100 ppm	±5% (F.S)	≤ 30 s	0.1 ppm	2 ppm /10 ppm
7	CI2	0 - 20 ppm	±5% (F.S)	≤ 30 s	0.1 ppm	1 ppm /10 ppm
8	NH3	0 - 200 ppm	±5% (F.S)	≤ 50 s	1 ppm	25 ppm /50 ppm
9	NO2	0 - 20 ppm	±5% (F.S)	≤ 25 s	0.1 ppm	3 ppm/10 ppm
10	NO	0 - 250 ppm	±5% (F.S)	≤ 60 s	1 ppm	25 ppm/50 ppm
11	H2	0 - 1000 ppm	±5% (F.S)	≤ 60 s	1 ppm	50 ppm /100 ppm
12	HCN	0 - 50 ppm	±5% (F.S)	≤ 200 s	0.1 ppm	10 ppm /20 ppm
13	HCL	0 - 20 ppm	±5% (F.S)	≤ 60 s	0.1 ppm	5 ppm /10 ppm
14	CH4	0 - 5% Vol	±5% (F.S)	≤ 60 s	0.1% Vol	customized
15	CO2	0 - 5% Vol (0-5000ppm)	±5% (F.S)	≤ 60 s	0.01% Vol (1 ppm)	customized
16	PID(VOCs)	1-1999 ppm	±5% (F.S)	≤ 20 s	0.1 ppm	customized
17	C3H8	0 - 5%Vol	±5% (F.S)	≤ 60s	0.01% Vol	customize
18	O3	0 - 5 ppm	±5% (F.S)	≤ 30s	0.02 ppm	1ppm/2 ppm
19	SF6	0 - 1000 ppm	±5% (F.S)	≤ 60s	0.2ppm	25ppm/50 ppm
20	HF	0 - 10 ppm	±5% (F.S)	≤ 60s	0.1ppm	3ppm/10 ppm

 

Company Profile

>>OEM Solutions & Service Advantages
We provide OEM customization services. Contact us to discuss tailored product solutions. 

1) 12-hour response guarantee for all inquiries;
2) Premium quality with industry-competitive pricing;
3) Dedicated post-purchase support system;
4) OEM/ODM compatibility;
5) Certified safety equipment specialists with expert engineering team.
 

>>FAQ
Q: Can I request a single sample unit for quality assessment?
A: Absolutely. We strongly advise sample evaluation before mass ordering.
 

Q: Could I obtain your product catalog and MOQ pricing details?
A: Our complete product portfolio is available digitally. Please browse our website for model specifications or email specific requests.
 

Q: What pricing advantages apply for large quantity orders?
A: Submit your complete requirements (product model, quantities, quality standards, branding specifications, payment terms, and logistics details) for optimized bulk pricing.
 

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