Gas detectors are safety and disaster-prevention devices that detect gases and issue alarms to prevent gas-related disasters and accidents and to ensure safe working environments.

Gas detectors are required to reduce the risk and consequences of accidents caused by gases used on site across a wide range of industries. Human senses alone cannot provide complete protection from potentially hazardous gases. While some gases are clearly visible or have distinct odors, others are colorless or odorless and you may have no idea of your exposure. Certain gases are harmful to the human body even if inhaled in trace amounts, and gas detectors detect such gases and alert personnel of the corresponding hazards to prevent possible accidents.

Gas detectors are used across a wide range of industries. Click here for examples of usage sites.
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Malfunctions attributable to sensor or device degradation may occur if products are left unused for extended periods.
Operational checks, gas calibration, and/or other maintenance is required before you resume use of the device. Please contact your dealer.
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Please note that repairs may not be possible in cases in which replacement parts are no longer available.

Prices vary depending on factors such as product type, quantity, and specifications.
Please contact your nearest dealer.
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Contact your nearest dealer.
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Lead times vary by model, quantity, target gas, and other factors.
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We do not provide price lists. Contact your nearest dealer for pricing information.
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Please contact your dealer.
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Several reasons may explain why the power cannot be turned on for portable products.
Start by checking the following:

[The battery is exhausted.]
Replace all batteries inside the device with new batteries.

[The POWER button was not held down long enough.]
When turning on the power, hold down the POWER button until you hear a long beep.

[The battery is fitted improperly.]Check to confirm that the battery is correctly fitted to the main unit.
(Is the battery inserted completely and in the correct direction?)

Please contact your dealer.
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Refer to "Troubleshooting" in the operating manual for the product.
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If you can't find the information you need for a specific product, contact your nearest dealer or use the product inquiries form to submit an inquiry.
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Please contact your dealer.
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The product page will provide information on newer versions (if any) of specific models.
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Please refer to the corresponding product operating manual.
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Unfortunately, parts are typically unavailable for end-of-life products.
Please consider purchasing the corresponding next-generation model.

Please refer to the corresponding product operating manual.
If you can't find the information you're looking for in the operating manual, contact your nearest dealer or use the product inquiries form to submit an inquiry.
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We offer a range of products that comply with MED. To search, use the search filters available on
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To download instruction manuals and catalogs, go to the corresponding product pages.
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Instruction manuals and catalogs can be downloaded from the corresponding product pages.
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To download up-to-date explosion-proof certificates, go to the corresponding product pages.
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The word "gas" was coined by Dr. Jan Baptist van Helmont from the Flanders region of Belgium and is reportedly derived from the Greek word "khaos" ("chaos" in Latin), meaning chaos.