Import Coh-A2 Electrochemical Co Sensor & H2s Sensor — Buy in wholesale FOB from Supplier in China

The COH-A2 is a dual-gas electrochemical sensor designed to detect Carbon Monoxide (CO) and Hydrogen Sulfide (H2S) simultaneously in personal gas monitors. Based on Alphasense’s 2sense family, it builds on a decade of field-proven performance from the original D2 sensor while using a patented dual-gas design that reduces detector size and cost without compromising accuracy or long-term stability. The sensor operates in a 20mm A-series form factor, making it compatible with compact multi-gas detection devices used across industries like mining, oil and gas, and industrial safety.

Constructed with electrochemical cells, the COH-A2 delivers reliable measurements for CO in the range of 0 - 500 ppm and H2S from 0 - 100 ppm, typical for industrial safety applications. The sensor’s cohesive electrode design ensures cross-sensitivity is minimised, a standard requirement for dual-gas detectors in hazardous environments. Typical operating conditions include temperatures from -20°C to 50°C and humidity levels between 15% and 90% RH, with a standard lifespan of 2 to 3 years under continuous use. The housing is engineered for durability, with resistance to shock and vibration common in portable devices.

This sensor is primarily used in portable gas detectors for workplace safety, where simultaneous CO and H2S monitoring is critical for compliance with OSHA and other international safety standards. Buyers in industries such as fire safety, chemical processing, and confined-space entry rely on its precision and stability. Week Technology Ltd. supplies the COH-A2 from Shenzhen, China, with bulk trade terms and packaging suitable for OEM integration. Confirm MOQ, lead time, and incoterms directly with the supplier, as these are not specified in the listing.

Week Technology Ltd. is based in Shenzhen, Guangdong Province, China, operating from 16 Floor, Building #3, Zhongke Mansion. The company specialises in the supply of electrochemical gas sensors, including dual-gas models like the COH-A2, which are sourced from established manufacturers such as Alphasense. Its profile indicates an imported supplier tier with a harbor trust tier, reflecting a focus on international trade for industrial safety equipment.

The supplier does not list a response rate or average response hours in its current profile, so direct contact is required to confirm trade terms, technical support, or additional product details. Week Technology Ltd. positions itself as a provider of sensor solutions for industries where gas detection is critical, but it does not advertise certifications, production capacity, or client references beyond the product specifications provided.