You are looking for a five-gas detector and see GD5000, GD5 PRO and GD5 Prime among the options. They measure similar gases, so which model should you look at first? Before opening a comparison table, define where the air will come from, what you want to see on the display and how you will operate the device throughout the day. This makes the shortlist clearer.

If you want to measure surrounding air by diffusion, start with GD5000 and GD5 PRO. If you need to draw air through a probe, start with the integrated-pump GD5 Prime. Add your display and charging plans to narrow down the items your team needs to compare.

Topic card comparing GD5000, GD5 PRO and GD5 Prime by operating method, display and configuration

Write your requirement in one sentence before comparing the three models

Can you go one step beyond “We need a five-gas detector”? A discussion becomes much more specific when the people using the equipment and those arranging the purchase write the requirements together. Start with the actual workflow: where it will be used, how the display will be read and when charging is possible.

For example, “We want to measure surrounding air and read a Korean-language display” is a different request from “We want to draw air from another location through a probe and check it.” The first combines a measurement method with a display requirement; the second focuses on the air-sampling setup.

Write one sentence first, then add the details that support it. This helps you find the functions you need faster than choosing a model name first. If use differs between sites, write separate requests.

Desk scene with three requirements documents laid out for review

First ask: surrounding air or air drawn through a probe?

GD5000 and GD5 PRO use ambient-air diffusion. When comparing them, start with this shared feature and then examine other requirements, such as the display and operating time. If you are looking for a diffusion device, their detailed product information is useful to review side by side.

GD5 Prime has an integrated pump and draws air through a probe. If your purchase request includes the sequence for using a probe and the measurement location, examine the Prime configuration first. You can plan the process of bringing in air as well as the instrument itself.

This distinction makes the first row of your comparison simple. Separate the starting points into “choose between two diffusion models” and “review a setup using a built-in pump.” All three measure five gases, but the way they take in air is an important difference in defining purchase requirements.

Diagram grouping GD5000 and GD5 PRO as ambient-diffusion models and GD5 Prime as an integrated-pump model

Display requirements narrow down the two diffusion models

GD5000 uses a monochrome LCD. If your team wants to review the information layout on a familiar monochrome screen, check the GD5000 display configuration. Look at an actual display and compare the reading sequence and the items users will look for.

GD5 PRO uses a color LCD with Korean-language support. If your request includes Korean text and a color display, you can check those requirements on PRO. Show the screen to the people who will use the device and review where the information they need appears.

GD5 Prime also uses a color LCD with Korean-language support. A requirement for a Korean color display combined with probe-based suction therefore leads you to consider Prime. Put display requirements and measurement-method requirements on separate lines to make the position of each model clear.

Compare operating time with the times available for charging

The maximum continuous runtime on one charge is 8 hours for GD5000, 12 hours for GD5 PRO and 10 hours for GD5 Prime. Before purchasing, write down the daily usage schedule alongside the available charging periods. Whether continuous use is needed from start to finish, or charging is possible in between, is useful information for your discussion.

Purchase requirement

GD5000

GD5 PRO

GD5 Prime

Air intake method

Ambient diffusion

Ambient diffusion

Integrated pump

Display

Monochrome LCD

Color LCD, Korean support

Color LCD, Korean support

Maximum continuous runtime per charge

8 hours

12 hours

10 hours

Gases measured

O₂·CO·H₂S·LEL·CO₂

O₂·CO·H₂S·LEL·CO₂

O₂·CO·H₂S·LEL·CO₂

At this point, you also have an order for reading the comparison table. Divide the candidates by measurement method, check the displays, then review the charging plan against the usage schedule. Comparing each item separately makes it easier to explain which requirement led you to consider a model.

Card showing the displays and maximum continuous runtime per charge of the three models side by side

Questions about included items make purchase preparation more specific

Also consider what you will need to prepare when the equipment arrives. Write down where the instrument will be stored, the charging space, who will receive and use it, and the required quantity. This helps you map out the workflow after purchase.

If you are considering Prime, include where you intend to use the probe and the sequence of use. When requesting a quotation, you can check the list of included items for that model and any additional items together. For GD5000 and PRO as well, asking about the instrument together with charging and storage items makes the preparation list easier to organize.

If you already use equipment, share its model name and the list of items you have. You can confirm the additional items you need one by one during the discussion. This connects the product name, usage requirements and item list into a single purchase request.

Start your discussion with one of three request statements

If you are still deciding which model to look at first, choose the starting point below that is closest to your team's needs. Add operating time and the required quantity to begin a comparison discussion right away.

  • Consider GD5000: “We are looking for an ambient-diffusion device and would like to check the information layout on its monochrome LCD.”

  • Consider GD5 PRO: “We want to use ambient diffusion and review the Korean color display and the specification of up to 12 hours of operation.”

  • Consider GD5 Prime: “We need an integrated-pump setup that draws air through a probe, along with a Korean color display.”

Air sampling location, display requirements, operating time and included-item list to prepare before a discussion

Tell AI Safety Korea Co., Ltd. where you will use the device, the measurement method, display requirements and daily operating time. Organizing the required configuration and quantity turns a comparison of the three models into concrete purchase preparation.

Product information

See the detailed pages for each model's display and configuration.

Discuss a five-gas detector purchase suited to your usage requirements