The SD 400 Oxi L is a portable, handheld dissolved oxygen (DO) meter that utilizes advanced optical luminescence technology to deliver precise, drift-free, and low-maintenance oxygen measurements. Designed for laboratory, industrial, and field applications, this innovative meter provides accurate results without the drawbacks of traditional electrochemical sensors.

With its long-life membrane head and no need for warm-up or polarization, the SD 400 Oxi L offers instant, reliable performance wherever accurate dissolved oxygen determination is required.

Key Features

• Luminescence-based optical measurement technology
• High accuracy with drift-free readings
• Low maintenance and low wear design
• No internal electrolyte required – cost-effective and hassle-free
• Stable sensor response without sample flow
• No interference from other gases
• Instant readiness – no warm-up or polarization time
• Long-life optical membrane head for extended use

Advantages of Optical Dissolved Oxygen Measurement

The SD 400 Oxi L sets a new standard for oxygen measurement by eliminating the limitations of conventional electrochemical methods. With optical luminescence technology, users benefit from greater stability, accuracy, and reliability while minimizing operating costs and maintenance needs.

This makes it ideal for environmental monitoring, wastewater treatment, aquaculture, and industrial process control.