Multi Gas Detector

Multi Gas Detector

4 in 1 Gas Detector
4 in 1 Gas Detector
4 in 1 Gas Detector
4 in 1 Gas Detector
4 in 1 Gas Detector
4 in 1 Gas Detector
4 in 1 Gas Detector

4 in 1 Gas Detector

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BrandSafewill
ModelES30A
Weight0.3Kg
CertificatesCE, FCC, Atex, SIL, RoHS, ISO14001, ISO9001, ISO45001
Detecting GasH2S, CO, O2, EX


The ES30A is a powerful 4-in-1 portable multi gas detector designed to meet diverse gas detection needs across various scenarios. Its standard detectable gases include oxygen (O₂), carbon monoxide (CO), hydrogen sulfide (H₂S), and combustible gases. Additionally, the ES30A is capable of detecting carbon dioxide (CO₂), methane (CH₄), hydrogen (H₂), and nitrogen (N₂), making it suitable for a wide range of complex environments.


This device offers multiple measurement ranges, precisely tailored to user requirements, and is fully equipped with relevant certifications to ensure reliability and safety. Thanks to its exceptional performance and cost-effectiveness, the ES30A has gained popularity in international markets such as South America and Southeast Asia.


4 in 1 Gas Detector

Features of the ES30A Portable Gas Detector:

Multifunctional Display

Equipped with an HD LCD screen, it provides real-time data display that is clear, intuitive, and easy to read.


Triple Alarm System

Includes sound, light, and vibration alarms, ensuring prompt warnings of hazardous gas concentrations in any environment.


Data Storage and Retrieval

Supports the recording of up to 1,000 alarm logs, allowing users to query and export data conveniently for tracking and analysis.


LED Lighting and Alerts

Integrated LED lighting enhances usability in dark environments and provides warning signals, ensuring operational safety.


Customizable Appearance

Offers customizable shell colors to meet personalized preferences. The orange model is a bestseller and highly favored by users.


Renowned for its professional-grade functionality and practicality, this gas detector is ideal for various industrial and environmental monitoring applications, making it a favorite among users.

Basic Information
Operating & Storage EnvironmentTemperature: -20℃ ~ +50℃
Humidity: 10 ~ 95%RH (no condensation)
Pressure: 86~106Kpa
Sampling methodPump suction type
Sensor life2 years
Accuracy  ±3%F.S
Response timeT90 < 30S
ChargerUSB powered DC5V
Charging time≤12 hours
Working time> 10 hours (at room temperature, no alarm)
Battery capacity7500mAh lithium battery, nominal voltage: 3.7VDC


Optional Gases
No.Detected GasDetecting ScopeOptional RangeResolutionLow/High Alarm Point
1EX 0-100%lel0-100%vol(Infrared)1%lel/1%vol20%lel/50%lel
2O20-30%vol0-30%vol0.1%vol19.5%vol/23.5%vol
3H2S0-100ppm0-50/200/1000ppm0.1ppm10ppm/20ppm
4CO0-1000ppm0-500/2000/5000ppm1ppm50ppm/150ppm
5CO20-5000ppm0-1%/5%/10%vol(Infrared)1ppm/0.1%vol1000%vol/2000%vol
6NO0-250ppm0-500/1000ppm1ppm50ppm/150ppm
7NO20-20ppm0-50/1000ppm0.1ppm5ppm/10ppm
8SO20-20ppm0-50/1000ppm0.1/1ppm5ppm/10ppm
9CL20-20ppm0-100/1000ppm0.1ppm5ppm/10ppm
10H20-1000ppm0-5000ppm1ppm50ppm/150ppm
11NH30-100ppm0-50/500/1000ppm0.1/1ppm20ppm/50ppm
12PH30-20ppm0-20/1000ppm0.1ppm5ppm/10ppm
13HCL0-20ppm0-20/500/1000ppm0.001/0.1ppm5ppm/10ppm
14CLO20-50ppm0-10/100ppm0.1ppm5ppm/10ppm
15HCN0-50ppm0-100ppm0.1/0.01ppm10ppm/20ppm
16C2H4O0-100ppm0-100ppm1/0.1ppm20ppm/50ppm
17O30-10ppm0-20/100ppm0.1ppm2ppm/5ppm
18CH2O0-20ppm0-50/100ppm1/0.1ppm5ppm/10ppm
19HF0-100ppm0-1/10/50/100ppm0.01/0.1ppm2ppm/5ppm
Note: The above table is a general parameter. If you need other gas and range, please contact us for more details.

ES30A Portable Multi Gas Datasheet

Color Customization To Create a Unique Appearance

Do you want your product to stand out among numerous gas detectors? Our customized service offers a variety of shell color options to perfectly match the appearance of your product with your brand image. Take immediate action to create a unique gas detector that your customers can recognize at a glance
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Recent News

Indonesian Customer Visits Factory

August 08, 2025

During the visit, our engineers worked closely with the customer’s technical team to resolve on-site technical issues, including connecting our equipment to the customer’s own system. The successful integration and smooth operation left a strong impression. As a result, the customer immediately confirmed and signed an order.

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The Portable Pinhole‑Type Nitrogen Detector (Model ES20B), designed to revolutionize food packaging safety and quality control. This compact, pump‑suction gas detector is engineered to precisely monitor nitrogen (N₂) levels and detect residual oxygen (O₂) and carbon dioxide (CO₂) inside sealed packages—ensuring optimal freshness and shelf life.

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Safewill to Exhibit at EDRR Indonesia 2025 – Showcasing Advanced Gas Detection and Air Monitoring Solutions

June 18, 2025

Safewill is proud to announce its participation in the Emergency Disaster Reduction and Rescue (EDRR) Expo 2025, one of Southeast Asia’s leading events focused on disaster preparedness, emergency response, and safety technologies. The exhibition will be held from August 13 to 15, 2025, at the Jakarta International Expo, with Safewill located at Hall A2, Booth H26.

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In a new step toward global environmental monitoring cooperation, a customized Outdoor Air Quality Monitoring System—based on Safewill’s advanced solution for multi-parameter pollution tracking—has been successfully delivered to a client in Ghana. This solution integrates NO₂, SO₂, CO, O₃, VOC, PM2.5, PM10, TSP, and meteorological sensors, and has been specially upgraded with a rainfall monitoring module to meet local environmental research needs.

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