-Product Overview

The LDO II AQ (freshwater)/AQS (seawater) series dissolved oxygen sensors for aquaculture use fluorescence method for dissolved oxygen measurement, using 3D calibration technology. They are calibrated before leaving the factory and can be used immediately without the need to replace the dissolved oxygen sensor membrane and electrolyte. They are convenient and durable dissolved oxygen sensors.

-Working principle

The LDO II AQ/AQS dissolved oxygen sensor adopts a new dissolved oxygen measurement technology - fluorescence method. The dissolved oxygen sensor is covered by a layer of fluorescent material, and when the LED light source emits blue light to irradiate the fluorescent material, the fluorescent material is excited and emits red light; The time required for a light spot pool to detect fluorescent substances from emitting red light to returning to the ground state is only related to the blue light emission time and oxygen concentration. The dissolved oxygen sensor also has an LED light source that emits red light at the same time as blue light, serving as a reference for the blue light emission time. The time for fluorescent substances to emit red light is inversely proportional to the concentration of oxygen, and the concentration of dissolved oxygen is calculated based on this.

-Typical applications

LDO II AQ dissolved oxygen sensor is suitable for freshwater aquaculture patrol and on-site dissolved oxygen measurement; The LDO II AQS dissolved oxygen sensor is only suitable for dissolved oxygen measurement in the marine aquaculture industry, with online control of oxygenation.

-Product Features

The LDO II AQ (freshwater)/AQS (seawater) series of dissolved oxygen sensors for aquaculture use fluorescence based membrane free measurement technology, with stable performance.

The dissolved oxygen sensor is ready to use out of the box without calibration, and the fluorescent cap has a lifespan of up to two years.

The dissolved oxygen sensor uses 3D calibration technology and has been calibrated before leaving the factory, resulting in accurate dissolved oxygen measurement results.

The LDO II AQ/AQS dissolved oxygen sensor does not require membrane replacement, electrolyte solution supplementation, or polishing and cleaning of the anode and cathode, resulting in low maintenance.

The dissolved oxygen sensor adopts an O-ring and ultrasonic dual sealing design, which improves durability while reducing size and making it easier to operate.