A. Ensure efficient and reliable operation of your wood heater or pellet heater with the WeiDa Lambda Oxygen Sensor WO163304. This sensor is designed to provide accurate and precise measurements of oxygen levels in your heating system. B. The WeiDa Lambda Oxygen Sensor features a 4-wire linear piezoelectric design that offers excellent sensitivity and repeatability, ensuring long-lasting performance. With a measuring range of OZA685-WWW, this sensor provides reliable and consistent readings. C. Designed to meet OEM specifications, the WeiDa Lambda Oxygen Sensor is a replacement for the OZA685-WW1 and OZA685-WWW sensors. Its hysteresis and resolution are optimized for use in wood heaters and pellet heaters, providing optimum functionality. D. This sensor is easy to install, and its plug-and-play design ensures smooth integration into your heating system. It is a choice for heating professionals and DIY enthusiasts who want to ensure their heating systems are running at peak performance. E. Invest in the WeiDa Lambda Oxygen Sensor WO163304 and maximize the efficiency and performance of your wood heater or pellet heater.