Import Eto-A1 Ethylene Oxide Sensor (Eto Sensor) — Buy in wholesale FOB from Supplier in China

The ETO-A1 Ethylene Oxide Sensor is an electrochemical gas detector designed for precise measurement of ethylene oxide in industrial and medical environments. It delivers a linear current output proportional to gas concentration, with a full-scale range of 100 ppm and a sensitivity range of 2000 to 3200 nA/ppm at 20 ppm exposure. The response time to reach 90% of final reading (t90) is under 150 seconds, and the resolution is less than 0.1 ppm equivalent under RMS noise conditions. It is compatible with Alphasense's evaluation board for bias voltage tuning.

The sensor employs a three-electrode electrochemical cell with a proprietary electrolyte formulation, typical for toxic gas sensors used in safety-critical applications. It operates across a temperature range of -30°C to 50°C and is rated for pressures between 80 and 120 kPa. Humidity tolerance extends from 15% to 90% RH continuously. The unit is lightweight, under 6 grams, and designed for surface-mount integration into compact gas detection modules. The A and B series variants differ in long-term stability and zero-current drift characteristics.

This sensor is commonly used in sterilization facility monitoring, pharmaceutical manufacturing, and chemical process control where ethylene oxide exposure must be tracked to meet OSHA or EU workplace limits. Buyers include OEMs of portable gas detectors, medical device integrators, and environmental safety system manufacturers. Packaging is bulk tray for automated assembly. Trade terms are FOB Shenzhen. Minimum order quantities and lead times must be confirmed directly with the supplier, as calibration requirements vary by batch.

Week Technology Ltd. is a supplier registered in Shenzhen, Guangdong, with a physical address at 16 Floor, Building #3, Zhongke Mansion. The company is classified as an imported tier with harbor trust verification, indicating prior export activity. The listing does not mention manufacturing capability, years of operation, staff size, or client references. Response metrics are not available, suggesting minimal buyer engagement on the platform.

The company functions as a distributor of Alphasense electrochemical sensors, not a manufacturer. It does not claim any certifications such as ISO 9001 or CE marking for its own processes. The listing confirms no in-house calibration lab or R&D department. Buyers must request traceable documentation from the original manufacturer and verify whether units are factory-calibrated or require post-purchase calibration.