Compatibility: Specifically designed for electrical DIY projects, this ultrasonic oxygen sensor module OCS-3RL is perfect for enthusiasts looking to enhance their technical skills and build for oxygen monitoring. and Quality Assurance: Proudly originating from , this ultrasonic oxygen sensor module does not come with a certification, ensuring it meets the basic requirements for personal and educational use without the complexities of certified components. Application Versatility: Ideal for use in oxygen and environments with low oxygen concentration, the OCS-3RL sensor module provides reliable and accurate measurements, making it an essential tool for environmental monitoring and safety applications. Chemical Safety: Engineered with user safety in mind, the OCS-3RL ultrasonic oxygen sensor module contains no high-concern chemicals, making it a choice for both educational and professional settings where health and environmental concerns are . Color: As Shown Material: Metal+Plastic Package Contents: 1* Sensor Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.