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4 in 1 handheld Carbon Monoxide CO Oxygen O2 Hydrogen Sulfide H2S Combustible EX gas analyser

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Quick Details

Place of Origin: Shandong China
Gas Detected: CO O2 H2S EX
Response Time: ≤ 8S
Measure Range: CO: 0-1000ppm, O2: 0-30%vol, H2S: 0-100ppm, EX: 0-100%lel
Detection principle(EX): Catalytic combustion principles
Model Number: SKZ1050E-CO O2 H2S EX
Weight: 400g
Brand Name: SKZ
Repeatability: ≤ ± 1%
Type: Gas Detector
Precision: 2%FS
Product name: 4 in 1 handheld CO O2 H2S EX gas analyser
Detection principle(CO O2 H2S): Electrochemical principles
Resolution: CO: 1ppm, O2: 0.01%vol, H2S: 0.01ppm, EX: 0.01%lel
Packaging Detail: Custom foam interior fixed detectors, aluminum alloy suitcases and cartons.
Selling Units: Single item
Single package size: 30X30X15 cm
Single gross weight: 2.0 KG
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SKZ International Co., Limited
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Manufacturer, Trading Company
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US$ 190,000+
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Product Description


4 in 1 handheld Carbon Monoxide CO Oxygen O2 Hydrogen Sulfide H2S Combustible EX gas analyser


4 in 1 handheld Carbon Monoxide CO Oxygen O2 Hydrogen Sulfide H2S Combustible EX gas analyser with pump built-in.




3.5 inch high-definition color screen

1). The outer casing is made of aviation wear-resistant material

2). Adopt 3.5-inch high-definition color screen, high resolution, wide viewing angle 

Flashlight function

Exclusive design - a flashlight function that illuminates the darkness for certain workplaces and make Underground work easier

Multi-gas test, display mode switch (USED FOR MULTI-GAS)

It can simultaneously detect up to 1-4 gas concentrations

Data show that the gas concentration, gas concentration curve in real time display mode can be arbitrarily switched

Flexible and adjustable pumping system

Built-in gas sampling pump, the pump's flow rate is adjustable in ten steps, which can customize the gas detection flow for different detection environments.

Multi-layer filter

Three-layer filter unit is built in to efficiently filter oil, water, dust and other impurities. Even in the most demanding industrial environment, the test results can still be trusted.


Powerful, more user-friendly operation

1). With timed shutdown function, intelligent settings

2). Sensor overload automatic protection

3). USB charging interface design can be charged anytime, anywhere

4). One-click screen capture function, save test data and curve in picture form

Optional function

1). Optional fall alarm function to ensure the safety of underground workers is more secure

2). Optional 8G large-capacity memory card, support one-click download function

3). Optional PC storage software download, analysis and storage data, with excel format

4). Optional external Bluetooth printer



Gas Detected


Detection principle

Catalytic combustion principles  (EX)

Electrochemical principles(CO O2 H2S)


Sampling method

Built-in stable flow pump, each flow pump is equipped in each independent module, pump flow is adjustable in ten steps, flow range: 0-500 mL/Min

Modular structure

Can detect up to 1-4 kinds of gases

Concentration unit

ppm, mg/m3, %VOL, %LEL, can be switched by one button, and the concentration value is automatically converted by the internal system


3.5-inch color display, resolution 320*480

Display content

Gas formula, concentration data, unit of measure, gas curve trend, battery level, time, pump status, screen capture status,

optional functions: temperature, humidity, pressure, wireless status, printer status

Display mode

Multiple display modes selectable, multi-channel data mode, multi-curve mode, multi-channel data + multi-curve mode, single channel + single curve mode

Temperature and humidity detection range

Temperature: -20 °C - 50 °C, resolution: 0.1 °C

humidity: 0-99% RH, resolution: 1% RH * (optional)

Data storage

Standard 16M capacity storage function, can save upto 100000 groups of data.

Can be directly connected to the computer through USB, quickly download stored data , TXT document

Optional PC software to download, store, analyze, EXCEL format with extra charge to blur-tooth printer to print data

Communication and data download

Output USB port

Optional PC software to download in excel format, store, analyze

Wireless transmission

(optional) Bluetooth (with printer), ZigBee, built-in DTU wireless module (optional)


Built-in printer or external Bluetooth printer (optional with extra charge) 

Print content 

Text, graphics, 1D code, 2D code, curve

Screen capture settings

The content displayed by the current host can be saved in the form of a BMP picture, and then the picture is exported to the computer through the USB cable for the user to record and reference.

Operating language 

Chinese and English 

Battery capacity

3800mA rechargeable polymer battery with overcharge, over discharge, over voltage, short circuit protection

Charging interface 

USB charging interface, 5V/2A standard charger

Filter device

Equipped with a multi-layer filter to efficiently filter oil, water and dust.

Wireless network

Bluetooth (with print function), ZigBee, Lora+ (relay DTU), DTU (optional with extra charge)

Network frequency

Lora (470M), DTU (2.4G)

Wireless trans. distance

Lora (1.6 km), DTU (unlimited)

Measure Range

CO: 0-1000ppm, O2: 0-30%vol,  H2S: 0-100ppm,  EX: 0-100%lel


CO: 1ppm, O2: 0.01%vol,  H2S: 0.01ppm,  EX: 0.01%lel


2% FS

Response Time



≤ ± 1%

Zero shift

≤ ± 1% (F.S / Year)

Operating temperature


(optional flue gas sampling probe, up to 600°C , 1200°C smoke concentration)

Working humidity 

0-95% RH (no condensation) (high humidity can be selected with filter drying device)


Exic II CT3 Gc  

Alarm mode 

Buzzer, LED and alarm status prompt on the display, fault alarm, pump abnormal alarm, battery low battery alarm, shutdown alarm, fall alarm (optional with extra charge)



Recovery Time

≤ 10S


Linearity error

≤ ± 1%


Degree of protection






Standard accessories

Manual, warranty card, power charger, carrying case, water and oil filter, data cable


Optional accessories

Bluetooth printer, pressure sensor, high temperature rod , Metal extension rod, Bendable rod , Silicone hose, dry filter device

PC download software



Packaging & Shipping


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