10 Years of Experience in Gas Detection and Monitoring

Since 2013, GasDog has been focusing on designing, manufacturing and supplying superior gas detection systems. "Gas Detection is as Accurate as a Sniffer Dog's Nose" is our aim. Explore GasDog's detection and monitoring products, including portable gas detectors, fixed gas detectors and multi gas detectors. We are committed to providing you with reliable and efficient gas safety solutions.

Portable gas detector
expand tooltip Built-in pump for rapid gas suction, ensuring a fast response time
expand tooltip Clear LCD screen can display the monitored gas type and gas unit
expand tooltip ABS plastic makes the detector anti-slip, waterproof, dustproof, and explosion-proof

Portable Gas Detector, Single Gas Monitor

Gas sensor
Handheld gas detector is manufactured with an advanced sensor and audible, visual and vibration alarms to provide precise measurement of combustible gases, VOC gases and toxic gas detection.
Gas types
Portable single gas monitors are capable of detecting Carbon Monoxide (CO), Carbon Dioxide (CO2), H2S, Hydrogen (H2), Oxygen (O2), Natural gas, Ammonia (NH3), Methane, Propane, Ozone, Chlorine, Nitrogen, Formaldehyde, and more.
Gas alarm
The supplied yellow gas detector is used for a variety of purposes from personal monitoring to confined space entry, reducing the risks and costs of using different gas detectors on site.

Fixed Gas Detector, Industrial Gas Monitor

Gas sensor
Specialized sensors are built into fixed gas detectors to detect the presence of specific gases. Different sensors are used for different types of gases, such as Methane, Carbon Monoxide, Hydrogen Sulfide, Oxygen, etc.
Gas types

Fixed gas detectors provide continuous monitoring of the surrounding air to ensure timely detection of gas leaks or abnormal levels. This continuous monitoring helps in identifying potential hazards before they reach dangerous levels.

Gas alarm
GasDog fixed gas detectors are equipped with sound & light alarms that trigger when the concentration of a particular gas exceeds a predefined threshold.
Fixed gas detector
expand tooltip Digital display screen shows gas leak concentration readings in real time, ensuring safety in industrial environments.
expand tooltip Installation methods of wall-mounted, piping type and flow-type available according to the detected environment.
expand tooltip Infrared controller can remotely control the alarm point setting, zero calibration and address modification.
expand tooltip Audible and visual alarm activates and flashes to alert when gas concentration reach the alarm point.

Gas Detectors GasDog Supplied

factory price gas detector


Combustible Gas Detector: Methane, Propane, and Hydrogen Detectors for Industrial Sites

Combustible gas detectors are manufactured to detect potentially hazardous gases in various environments. GasDog supplies portable and fixed gas detectors equipped with advanced sensors to ensure accurate and reliable gas detection.


Toxic Gas Detector: Carbon Monoxide, Ammonia, and Chlorine Detectors for Confined Spaces

Gasdog toxic gas detector is a device manufactured to monitor and detect the presence of harmful gases in the air. These poisonous gas detectors are crucial for ensuring the safety of individuals in various environments, including industrial facilities, laboratories, manufacturing plants, and other areas where the potential for toxic gas leaks exists.


VOC Gas Detector: Volatile Organic Compound Gases Monitor

GasDog supplies portable personal VOC gas detectors to monitor formaldehyde (HCHO), TVOC and other volatile organic compounds in real-time to create a safe and healthy environment.

Gas Detection Case Studies

Carbon Dioxide detection in biopharmaceutical incubator

CO2 Gas Detection in Biopharmaceutical Incubator

  • User Background
    The client operates within the pharmaceutical sector and requires monitoring of the Carbon Dioxide concentration within their incubator. The objective is to measure and maintain the CO2 concentration in the incubator at approximately 5%.
  • Solution
    We suggest utilizing the GasDog GD200-CO2 portable gas detector, featuring a 0-20%VOL range and 0.01%VOL resolution, along with a built-in storage and recording function. Throughout the detection process, users have the flexibility to set a 1-minute interval for data storage, eliminating the need for continuous manual monitoring by personnel. After completing the test, our PC storage software allows for the easy export of data collected during the 1-hour testing period. This facilitates a comprehensive assessment to confirm whether the Carbon Dioxide concentration consistently aligns with the desired 5% VOL standard throughout the entire test duration.

Desulfurization/Energy/Petroleum Recovery H2S Treatment

  • User Background:
    The energy company has a project that necessitates the deployment of a Hydrogen Sulfide (H2S) alarm system for monitoring gas concentrations pre and post-desulfurization and denitrification processes, assessing the efficacy of desulfurization. The initial H2S concentration before desulfurization is approximately 3000ppm, which decreases to around 200ppm after the process. The site experiences elevated humidity levels, and the environment lacks dust or impurities.
  • Solution:
    To address these conditions, we recommended a fixed GD300-H2S single gas detector, featuring a gas chamber constructed from corrosion-resistant 304 material. Given the corrosive nature of Sulfide and the less-than-ideal environmental conditions, this detector offers a measuring range of 0 to 3000ppm. Upon installation in the target environment, the gas monitor yielded satisfactory results. Subsequently, the customer proceeded to acquire three portable H2S detectors and fixed O2 detectors.
Composite gas detection in oil field petroleum industry

Composite Gas Detection in the Oil Field/Petroleum Industry

  • User Background:
    The customer, serving as a manager in a petroleum engineering firm, is currently seeking advice on a portable detector designed to identify four gases: Carbon Monoxide (CO), Oxygen (O2), Hydrogen sulfide (H2S), and Explosive gases (EX). The customer emphasized the importance of precision and swift response times in the detector. The working environment is a confined space and well, heightening concerns about potential gas leaks and explosive situations that could endanger human safety.
  • Solution:
    Based on the customer's workplace needs, GasDog suggested the GD500-4GAS handheld 4 in 1 multi gas detector. This device swiftly detects gases as they interact with its surface sensors, ensuring rapid and accurate readings. It is portable, featuring a convenient back clip for staff to carry in their pocket or attach to their waist, allowing for hands-free work. Moreover, the gas monitor offers customizable low and high alarm settings along with dual audible and visual alerts to ensure safety. The selected range and resolution are CO: 0-1000ppm, 0.01ppm O2: 0-30%VOL, 0.01%VOL H2S: 0-100ppm, 0.01ppm EX:0-100%LEL, 1%LEL.

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GasDog FAQs

1. What to know about buying a gas detector

  • Which gases does the detector specifically detect, and does it cover the range of gases relevant to my environment or industry?
  • Is the gas detector suitable for portable use, fixed installation, or both, based on my monitoring needs?
  • What are the alarm options, including sound, light, and vibration alerts, and can the alarm levels be adjusted to meet my safety requirements?
  • What is the battery life of the portable gas detector, and are there options for rechargeable batteries or alternative power sources?
  • Is the gas detector intrinsically safe, meeting safety standards for use in potentially explosive atmospheres?
  • What is the warranty period, and what level of customer support and technical assistance is provided by the manufacturer?

Gain comprehensive insights into GasDog gas detectors by exploring our product page, where you'll find detailed answers to essential questions. For any remaining inquiries, our team is readily available to assist you. Contact us for further clarification or information about GasDog gas detectors.

2. How to calibrate a gas detector?

Reliable GasDog gas detector has been accurately calibrated during the factory manufacturing process, so users do not need additional calibration steps during use.

If customers need recalibration under specific circumstances, GasDog provides free calibration services to meet customer needs. Customers who purchase a gas detector calibration kit can self-calibrate by following detailed steps provided by the manufacturer. For customers who have not purchased the calibration kit, during the one-year warranty period, customers need to pay the return shipping fee, and GasDog will send it back to you for free. However, after the warranty period, customers need to bear the all shipping costs.

We are committed to providing customers with convenient and thoughtful after-sales service. If you have any questions about gas detector calibration, you can always contact our professional support team.

3. How to install a gas detector?

Installing a gas detector is a crucial step in ensuring effective monitoring and safety. Here's a general guide on how to install a gas detector.

  • Select an Appropriate Location: Choose a location where the gas detector can effectively monitor the air for the targeted gases. Consider areas where gas leaks are most likely to occur.
  • Follow Manufacturer Guidelines: Refer to the GasDog's installation guidelines and user manual for specific instructions related to your gas detector model. Different detectors may have unique installation requirements.
  • Mounting: Mount the gas detector on a wall or ceiling using appropriate mounting hardware. Ensure it is positioned at the recommended height for optimal gas detection.
  • Power Supply: Connect the gas detector to a reliable power source. Depending on the model, this may involve plugging it into an electrical outlet, using batteries, or hardwiring it into the building's electrical system.
  • Calibration: If required, follow the calibration instructions provided by the manufacturer. Some detectors come pre-calibrated, while others may need initial calibration before use.
  • Sensor Placement: Place the gas detector's sensors in areas where they can efficiently detect the targeted gases.
  • Consider the density of gases; some detectors may need to be positioned closer to the ground or ceiling.
  • Wiring (If Applicable): For detectors requiring wiring, follow the specified wiring instructions. This may involve connecting the detector to an alarm system or other monitoring equipment.
  • Connect to Alarm System (If Applicable): If the gas detector is part of an integrated alarm system, ensure proper connectivity. Test the system to confirm that alarms are triggered correctly.
  • Testing: Perform a functional test to verify that the gas detector is operational. Some detectors come with a test button for this purpose.
  • Regular Maintenance: Establish a routine for checking and maintaining the gas detector. This may include periodic sensor calibration, battery replacement, and visual inspections.
  • Training: If the gas detector is installed in a commercial or industrial setting, ensure that relevant personnel are trained on its use, interpretation of alarms, and emergency procedures.

Always follow the specific instructions provided by the manufacturer for your gas detector model. If in doubt or if additional assistance is needed, consult the manufacturer's customer support or a qualified professional for installation guidance.

4. What support and warranty can GasDog suppliers offer?

GasDog supplier is committed to providing excellent support and warranty coverage to ensure your satisfaction. When you purchase gas detectors and monitors on GasDog.com, you can expect comprehensive support and a 12-month (365-day) warranty. This warranty period is effective from the date of receiving the products, offering you peace of mind and assurance in the quality of our gas detection equipment. Our commitment to customer satisfaction extends beyond the purchase, and we are here to assist you throughout the entire warranty period. Feel free to reach out to our support team for prompt and professional assistance with any issues related to your GasDog gas detectors

5. Does Gas gas detectors have an alarm function?

GasDog gas detectors are manufactured with a comprehensive alarm function designed to enhance safety. Our portable, fixed, multi gas monitors feature two levels of sound and light alarms, complemented by vibration alerts. The alarm points are customizable, allowing for a flexible design that aligns with specific concentration thresholds. This sophisticated system ensures that when gas concentrations surpass predetermined levels, the gas detector promptly activates audible, visual, and tactile alarms. This multi-layered approach is integral to guaranteeing the safety of personnel, creating a reliable and responsive solution for effective gas detection in various environments. Trust GasDog for state-of-the-art instruments prioritizing user safety.

6. Can the gas detector measure multiple gases simultaneously?

Certainly, GasDog gas detector supports one device to detect 4 gases or 5 gases at the same time, providing users with comprehensive gas monitoring solutions. Hot selling GD400-4GAS, GD400-5GAS, GD500-4GAS, and GD600-GAS detectors are highly recommended portable multi-gas detectors. This advanced gas detector ensures that users can efficiently and effectively assess the presence of various gases in their environment, enhancing safety and providing real-time insights for a wide range of applications. Trust GasDog for gas detection technology that meets the evolving needs of gas detection.

Explore Resources

Gas types

What is a Gas Detector?

A gas detector is a device used to identify the presence and measure the concentration of gases in the surrounding environment. It employs specialized sensors to detect specific gases, such as Carbon Monoxide, Methane, and Hydrogen Sulfide. When gas levels reach potentially hazardous thresholds, the detector triggers alarms or alerts to ensure safety and enable timely responses...

Gas detection for confined space

Gas Detection in Confined Space

In today's industrial and living environment, the existence of confined spaces can be seen everywhere, confined spaces are characterized by limited entry and exit points, limited gas diffusion, and easy accumulation of toxic or combustible gases, posing a serious threat to workers' safety and health...

Gas detector application

How to Choose the Right Gas Detector?

As industries expand, and environments become more complex, the need for accurate and reliable gas detection is paramount. Whether ensuring the safety of workers in confined spaces, monitoring emissions to protect the environment, or preventing potential hazards, the choice of a gas detector holds significant implications...

Gas detection for home

Gas Detection in Home

With the continuous advancement of technology, home and residential safety equipment has also been significantly upgraded. Among them, home gas detectors, as one of the important equipment to ensure life safety, are gradually becoming a necessary choice for more and more families...

Gas detection in mines

Gas Detection in Mines

Mining is a vital industry that helps to extract valuable resources from the depths of the earth. However, mining operations also face unique challenges, particularly with regard to potentially dangerous gases that can accumulate in underground environments...