Maritex has established a partnership with New Cosmos Electric, a Japanese manufacturer specializing in gas detection technologies. The first solutions announced under the new partnership are the CSD-04 and CSD-05 on-board hydrogen detection modules. Both products are currently under development, with production expected to begin in September 2026 according to the current schedule.

 

CSD-04 / CSD-05 on-board hydrogen detection module – product under development. Photo: New Cosmos Electric.

 

New Cosmos Electric – More Than 60 Years of Gas Detection Expertise

The roots of New Cosmos Electric date back to 1934, while the present company was established in Osaka in 1960. Just one year later, it began developing gas sensors, and in 1964 it launched the world’s first household combustible gas alarm based on a catalytic combustion sensor. Over the following decades, the company expanded its portfolio to include portable and fixed gas detection systems, residential safety products, and automotive modules.

A major milestone in its hydrogen technology development came in 2020, when an on-board hydrogen detector was adopted for the Toyota MIRAI. Today, New Cosmos Electric conducts research, development, manufacturing, sales, and maintenance of gas sensors and alarm systems, residential fire alarms, portable gas detectors, odor sensors, and air quality monitoring products.

CSD-04 and CSD-05 – Fast Hydrogen Leak Detection for Vehicles

The CSD-04 and CSD-05 modules are designed to detect even small hydrogen leaks in fuel-cell vehicles (FCVs), hydrogen internal combustion engine vehicles (HICEs), and other platforms using hydrogen as an energy carrier. Typical installation points include the hydrogen storage tank, hydrogen piping, fuel-cell stack, and vehicle cabin.

Both variants use the proven catalytic combustion principle and provide a detection range of 0–40,000 ppm. Their mechanical design and core performance are identical; the main difference is the output interface: CSD-04 supports CAN communication, while CSD-05 provides a PWM output.

Key Features

• Very fast response – T90 ≤ 3 s.
• Hydrogen detection range from 0 to 40,000 ppm.
• High sensitivity, selectivity, and accuracy: ±10% at concentrations of 10,000 ppm and above.
• High durability and enhanced resistance to silicone poisoning thanks to proprietary catalyst technology.
• Flexible 8–32 VDC supply and CAN (CSD-04) or PWM (CSD-05) output.
• Wide operating temperature range from -40 to +105°C.
• IP67 or equivalent enclosure protection.
• Compact dimensions of 80 × 82.4 × 25.5 mm and a weight of approximately 62 g.

Applications

• hydrogen-powered passenger cars and racing cars,
• heavy-duty trucks and buses,
• construction equipment and special-purpose vehicles,
• boats and marine applications,
• aircraft and other hydrogen-powered platforms.

Why Choose New Cosmos Electric Products?

• Experience and credibility: gas sensor development since 1961 and decades of expertise in safety-critical applications.
• Proven automotive track record: hydrogen detection technology has been used in production vehicles since 2020; according to the manufacturer’s materials, no field defects have been reported for its on-board hydrogen detectors since then.
• Fast and robust performance: short response time, high durability, and enhanced resistance to sensor poisoning.
• Cost-effective production: extensive mass-production expertise supports competitive implementation costs without compromising quality.
• Customization capability: New Cosmos Electric develops both sensing elements and complete modules, enabling solutions to be tailored to specific vehicle and system requirements.
• Global support: engineering and service resources are available across multiple markets.

 

CSD-04 and CSD-05 Specifications

 

Parameter	CSD-04	CSD-05
Status	Under development;
Target gas	Hydrogen
Detection principle	Catalytic combustion
Supply voltage	8–32 VDC
Detection range	0–40,000 ppm
Output	CAN	PWM
Response time T90	≤ 3 s
Accuracy	±10% (guaranteed at 10,000 ppm and above)
Power consumption	Normal: 1.6 W max.; start-up: 2.4 W max.
Operating temperature / humidity	-40 to +105°C / 0–100% RH, non-condensing
Storage temperature / humidity	-40 to +105°C / 0–100% RH, non-condensing
Dimensions	80 × 82.4 × 25.5 mm
Mounting	62 mm pitch; Ø 8.5 mm holes (2)
Weight	Approx. 62 g
Compliance	CE (RoHS, EMC: EN 50498)
Ingress protection	IP67 or equivalent

Note: CSD-04 and CSD-05 are products under development. Specifications, appearance, and the production schedule are subject to change.

 

Source: New Cosmos Electric Co., Ltd. – product materials and official manufacturer website

 

In case of questions, please feel free to contact us by phone: +48 58 662 05 79 or email: [email protected]