Yosemite Technologies Co., Ltd.

The sensor is based on optical fluorescence lifetime quenching technique. Its technical procedure meets ASTM D888-09 standard for optical sensing of dissolved oxygen . Small 16 mm design and digital communication capabilities allow you to integrate into various platforms quickly and easily. Measurement Principle The dissolved oxygen sensor measurement is based on well-known oxygen fluorescence quenching technology. When oxygen sensing membrane film is excited by blue LED excitation light, the sensing film will emit red emission light. The phase delay between blue excitation and red emission is a function of oxygen concentration present. By measuring the phase delay the dissolved oxygen concentration can be calculated. Advantages of optical dissolved oxygen measurement • Easy use, no membrane, no electrolyte. • Long lifetime, maintenance free and less calibration. • No flow dependency and fast response. • Immune to electrical interference, no chemical interference. Applications • Water quality monitoring of dissolved oxygen in streams, rivers, reservoirs, and lakes. • Waste water industry. • Fish farm and aquaculture water quality monitoring. • Food and wine industry. • Scientific laboratory research. Specifications Range: 0-20mg/L or 0-200% air Sat. Accuracy: ±1% Response Time: 10 sec Drift: <1% per year Temp Accuracy: ±0.2 C Temp and Barometer Compensation: Build-in &Automatic About Us: Headquartered in Suzhou Industrial Park, China, Yosemite Technologies designs and manufactures water quality monitoring equipment. Combining optical sensing and mobile internet technologies, Yosemitech brings innovative and cost competitive solutions to global water quality monitoring market. Yosemitech provides smart dissolved oxygen sensors based on state of art luminescent lifetime technologies. With different configurations intended for both field and laboratory uses, our products are ideal for measuring dissolved oxygen in wastewater, drinking water, aquaculture and general water quality applications. Yosemitech focuses on smart sensor development with complete product offerings include turbidity, PH, conductivity, multi-parameter probes and more. Our smart meters and online controllers support wireless communications such as Bluetooth, Zigbee and GPRS. Together with cloud data services, we bring innovative IoT (Internet of Things) solutions to water quality monitoring market. Yosemitech Innovation: •The first in the industry USB powered •Optical dissolved oxygen meter based on •Luminescence lifetime technologies Contacts: Company：Yosemite Technologies Co., Ltd. Address: Bldg NW-06,Ste 502,99 JinJi Lake Aue.,Suzhou Industrial Park Phone: +86-0512-87663997,87663987,65970621 Fax: +86-0512-87663911 Email：sales@yosemitech.com Official website: www.yosemitech.com/en/