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  6. General Catalog / Air Leak Testers

General Catalog / Air Leak Testers

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last updated:Jan 29, 2026

コスモ計器
コスモ計器
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Introducing automatic leak testers that meet the leak testing needs of various industries!

This document features the "Air Leak Testers" that detect minute differential pressure changes by applying air pressure or evacuating to a vacuum to give a pass or fail judgment on leaks in parts or finished products that require airtightness. We offer lineups that include the high-performance globally-compatible differential pressure Air Leak Tester "LS-R902" and the system for compact sealed works "LS-1881/LUV-880/870". Please make use of the information for selecting products. 【Contents (Excerpt)】 - Flagship Air Leak Tester - Standard Air Leak Tester - Air Leak Tester for sealed works - Separate-type Leak Tester - Special-purpose Leak Tester - Flow-type Leak Tester * For more details, please refer to the PDF document or feel free to contact us.

    Leak Testing EquipmentOther inspection equipment and devices
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General Catalog / Air Leak Testers

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  • Related Link - https://www.cosmo-k.co.jp/air-leaktester/

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【Featured Products (Excerpt)】 ■ Flagship Air Leak Tester ・ LS-R902 ・ LS-R902EV (for large EV batteries) ■ Standard Air Leak Tester ・ LS-R700 ・ LS-1866 ・ LS-1881/LU-80A ■ Separate-type Leak Tester ・ LS-R740(ZL) ・ LS-R740(SS) ・ LS-R740(SH) ■ Special-purpose Leak Tester ・ LS-R910 ・ LS-R902(ATC) ・ LS-1866(U) * For more details, please refer to the PDF document or feel free to contact us.

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catalog(17)

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Comprehensive Catalog Air Leak Tester

Comprehensive Catalog Air Leak Tester

CATALOG
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Digital Pressure Gauge DP Gauge DP-340BA

Digital Pressure Gauge DP Gauge DP-340BA

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Pressure Transducer PT-141C / PT-142B-A

Pressure Transducer PT-141C / PT-142B-A

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Movelet MV-6000B

Movelet MV-6000B

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Air Flow Tester AF-R221

Air Flow Tester AF-R221

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Air Flow Meter DF-R280

Air Flow Meter DF-R280

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Flow gauge mass flow sensor DF-231BA

Flow gauge mass flow sensor DF-231BA

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Flow gauge laminar flow tube DF-241BA

Flow gauge laminar flow tube DF-241BA

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Air Leak Tester Test Pressure Dual Circuit Switching Model LS-R912

Air Leak Tester Test Pressure Dual Circuit Switching Model LS-R912

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Digital Manometer DM-3700

Digital Manometer DM-3700

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Air Leak Tester Large EV Battery Dedicated Models LS-R902EV & AL-R302EV

Air Leak Tester Large EV Battery Dedicated Models LS-R902EV & AL-R302EV

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Air Leak Tester Sealed Product Model LS-R740(ZL)

Air Leak Tester Sealed Product Model LS-R740(ZL)

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Air Leak Tester for Sealed Products LS-R740(WL)

Air Leak Tester for Sealed Products LS-R740(WL)

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Air Leak Tester for Ultra High Pressure Testing LS-R740(SH)

Air Leak Tester for Ultra High Pressure Testing LS-R740(SH)

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Air Leak Tester Micro Volume Inspection Dedicated Model LS-R740(SS)

Air Leak Tester Micro Volume Inspection Dedicated Model LS-R740(SS)

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Air Leak Tester Multi-Link Model LS-1881A

Air Leak Tester Multi-Link Model LS-1881A

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Small Leak Master LM-S1A

Small Leak Master LM-S1A

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Company information

コスモ計器

コスモ計器

Testing, Analysis and Measurement

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Cosmo’s Air Leak Testers began with the automation of cylinder block airtightness tests for engines in 1970. Our products are utilized in various fields including automotive parts, gas, water supply, medical, electrical, electronics, and food. In line with the overseas expansion of Japanese automakers, we began our own overseas expansion in 1983. We now have 24 sales and service offices in 13 countries. We are offering proposals and providing after-sales services overseas as in Japan. Currently, in order to support the electrification of automobiles, our products are being used for leak testing of parts for electrification such as battery cases and inverters as well as for fitting testing of electric power connectors. We are contributing to the efforts by our customers to prevent emissions of CO2. In various regions of South and Southeast Asia, we are donating pressure measuring equipment to technical schools to improve the quality of education and exchange technologies with local machinery manufacturers. We have been making every effort to help improve the industrial base through local manufacturing of high-quality leak testing equipment.

Product/Service List (57)

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