Dissolved oxygen is oxygen dissolved in water and is as important an environmental indicator as pH when measuring the water quality of rivers and lakes.
Dissolved oxygen (hereafter abbreviated DO) is oxygen (O2) dissolved in water in nature in proportion to the partial pressure of O2 in the atmosphere. Dissolved oxygen content is expressed as the amount of dissolved O2 per unit volume of water (mg/L).
Fish and other organisms in water live on the oxygen content. DO content is affected by water temperature, salt concentration, atmospheric pressure, and other conditions, and the saturation level decreases as water temperature increases.
Therefore, in rivers with high organic pollution, the death of aquatic life due to oxygen deficiency often occurs in hot summers.
In recent years, therefore, the amount of dissolved oxygen in culture solutions used in cell cultures has been controlled.
Replacement DO tip for 9551-20D and 9551-100D DO electrodes Manufacturer article number:3014072770 (5401)
Horiba 5402 Replacement DO tip for galvanic oxygen sensor 9552-20D and 9552-50D Replacement DO tip for 9552-20D and 9552-50D DO electrodes Manufacturer article number:3200781553 (5402)
Horiba 7544 DO Electrode TipReplacement DO Electrode Tip for 9521-10D Comes with detachable stirrer holderTo be used with 9521-10D Galvanic DO ElectrodeCompatible with stirrer setManufacturer article number: 3200891724
Horiba 7544-Stirrer Stirrer with holder for 9521-10D (works in combination with magnetic stirrer) Manufacturer article number: 3200897227
Horiba 9521-10D DO ElectrodeGalvanic DO Electrode for DO and BOD measurements in laboratories Ideal for laboratory useIntegrated with built-in temperature sensorComes with replaceable 7544 DO Electrode Tip, detachable BOD bottle adapter and stirrer Use magnetic stir plate during measurementWaterproof Dissolved Oxygen Range: 0 to 20.00 mg/LTemperature Range: 0 to 50 °CResponse Time: 20 seconds (90% response time at constant temperature)Connectors: BNC, phono jackCable Length: 1 mOverall Length: 183 mmDiameter: 15.6 mmReplacement DO Tip: 7544Manufacturer article number: 3200891722
The Horiba 9552-20D sensor with a 2 m cable length combines robust construction, fast response time and easy maintenance in a waterproof sensor for precise measurements in outdoor use – ideal for the professional requirements of the LAQUA 200 series. The probe reaches 90% of its final value within just 30 seconds at a stable temperature. It is equipped with replaceable DO measuring tips of type 5402, which allows for easy maintenance without having to replace the entire sensor. Thanks to the galvanic measuring method, there is no warm-up time and no external power supply is required, while the integrated electrolytic gel solution ensures a long service life. The Horiba 9552-20D sensor combines robust construction, fast response time and easy maintenance in a waterproof sensor for precise measurements in outdoor use – ideal for the professional requirements of the LAQUA 200 series. Manufacturer item number: 3200780939
The Horiba 9552-50D galvanic DO probe is a waterproof galvanic sensor designed for outdoor use with an integrated temperature sensor and 5 m connection cable – ideally compatible with handheld measuring devices from the LAQUA 200 series. The probe can achieve a 90% response within 30 seconds at a constant temperature. The probe uses replaceable DO measuring tips of type 5402, which allow practical maintenance without replacing the entire sensor. The use of a galvanic measuring method avoids additional warm-up times or external power supply and offers a long-lasting electrolytic gel solution.Manufacturer item number: 3200780941
Optical dissolved oxygen sensor with hard moulded 2m or 5m cable including a membrane cap. Manufacturer Part Nr. 3200780940 (2 metres = 300-D-2) 3200780942 (5 metres = 300-D-5)
Optical dissolved oxygen sensor with hard moulded 2m or 5m cable including a membrane cap. Manufacturer Part Nr. 3200780940 (2 metres = 300-D-2) 3200780942 (5 metres = 300-D-5)
The HORIBA Dissolved Oxygen Sensor Cap (300-D-M) is an essential component for performing precise and reliable dissolved oxygen measurements in aqueous environments. This replacement cap is designed for use with HORIBA DO sensors models 300-D-2 and 300-D-5. It is the ideal solution for ensuring the measurement accuracy and longevity of your oxygen meter. Advantages of the HORIBA Dissolved Oxygen Sensor Cap Extended Measurement Range: The sensor cap allows for comprehensive dissolved oxygen measurements, making it suitable for a wide variety of applications, from environmental monitoring to industrial processes. Adaptability to Environmental Conditions: With its operating temperature range, it can be used for measurements in diverse aqueous environments, from cool natural waters to warmer industrial process waters. Durable Material: Made from PVC and PMMA, the sensor cap offers high resistance to chemical exposure and mechanical stress, ensuring durability in challenging measurement conditions. Easy Installation: The sensor cap can be replaced quickly and easily, reducing maintenance time and improving operational efficiency. Quick Guide to Replacing the Sensor Cap Remove the old cap: Detach the existing sensor cap from the DO sensor to make room for the new one. Attach the new cap: Secure the new sensor cap to the DO sensor so it can be quickly put back into service. Set the parameters: Enter the specific membrane parameters of the new cap into the meter to optimize measurement accuracy. Calibration process: Use the dedicated calibration function (“CAL in cap replacement”) to fine-tune the measurements with the new cap. Note: The detailed procedure for setting the membrane parameters and performing calibration is described in the device’s user manual. Following these steps ensures your meter is promptly and efficiently configured for the new sensor cap, maintaining accurate measurements over time. For anyone who depends on precise dissolved oxygen measurements, the HORIBA Dissolved Oxygen Sensor Cap (300-D-M) is indispensable. With its robust design, extended measurement range, and ease of use, it greatly enhances the reliability and service life of your HORIBA oxygen meter. Replacement DO cap for 300-D-2 and 300-D-5Manufacturer article number: 3200781554
The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight. Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation. In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series. During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely. DO220 version with GLP functions Measurement data storage of 1000, instead of 500 data sets Measurement and calibration data are stored GLP compliant with date and time stamp PC communication via optional USB cable RS232 printer function to print the measurement data Scope of delivery: Handheld meter DO210 or DO220 2x AA battery manual and quick reference guide Manufacturer article number: 3200779541 (DO210) 3200779542 (DO220)
The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight. Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation. In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series. During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely. DO220 version with GLP functions Measurement data storage of 1000, instead of 500 data sets Measurement and calibration data are stored GLP compliant with date and time stamp PC communication via optional USB cable RS232 printer function to print the measurement data Scope of delivery: Handheld meter DO210 or DO220 2x AA battery manual and quick reference guide Manufacturer article number: 3200779541 (DO210) 3200779542 (DO220)
The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight. Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation. In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series. During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely. PD220 version with GLP functions Measurement data storage of 1000, instead of 500 data sets Measurement and calibration data are stored GLP compliant with date and time stamp PC communication via optional USB cable RS232 printer function to print the measurement data Scope of delivery: Hand-held meter PD210 or PD220 2x AA battery manual and quick reference guide Manufacturer article number: 3200779545 (PD210) 3200779546 (PD220)
The high-quality multi-parameter hand-held meters of the LAQUA 200 series manufactured by Horiba are suitable for use in the field under any conditions and in direct daylight thanks to their monochrome LCD display with LED backlight. Another advantage of these devices is that the hand-held meters are very shock and scratch resistant due to the special rubber coating and offer a long operating time due to the AA 2500 mAh batteries used. An IP67 certification, which certifies dust-tightness and protection against temporary submersion for up to 30 minutes at a water depth of one metre, rounds off the professional overall package in addition to the ergonomic design and simple operation. In the certainty of producing high-quality devices, the manufacturer Horiba offers you a three-year guarantee on the hand-held measuring devices of the LAQUA 200 series. During the measurements, the user is supported by the display of instructions in the form of smiley symbols. This is intended to prevent operating errors that can lead to implausible measurement results. Furthermore, the measuring device has only 9 keys and no menu texts. This design decision serves, among other things, to ensure that the device can be operated as easily as possible during discontinuous use or when used by other users. The Horiba meters have an electrode wear indicator, a lock function to "save" the current measured value on the display, automatic calibration functions and a self-diagnostic function. The fold-out stand on the back of the units means that you always have your hands free to carry out your measurements easily and safely. PD220 version with GLP functions Measurement data storage of 1000, instead of 500 data sets Measurement and calibration data are stored GLP compliant with date and time stamp PC communication via optional USB cable RS232 printer function to print the measurement data Scope of delivery: Hand-held meter PD210 or PD220 2x AA battery manual and quick reference guide Manufacturer article number: 3200779545 (PD210) 3200779546 (PD220)
The Milwaukee MA840 is a polarographic replacement probe for the MW600 Dissolved Oxygen meter.The refillable polarographic probe has an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor for measuring dissolved oxygen (DO) levels in aqueous solutions.The probe uses a platinum cathode and a silver chloride anode which the MW600 meter polarizes so that oxygen passing through the membrane can be measured to produce stable, accurate readings.DESIGN FEATURESReinforced plastic body for durabilityBuilt in temperature sensor to achieve thermal equilibrium between the sensor and the sample for more accurate reading25,4cm long with a tip that tapers from 1-1/2" to 3/4" in diameter3m cable with a 7-pin DIN connector for attaching to the meter
The Milwaukee MA860 is a Galvanic replacement probe for the MW605 MAX Dissolved Oxygen meter.The refillable Galvanic probe has an oxygen-permeable polytetrafluroethylene (PTFE) membrane sensor for measuring dissolved oxygen (DO) levels in aqueous solutions and a built in temperature sensor.The probe uses a silver cathode and a zinc anode.The body is made of PP and ABS.DESIGN FEATURESReinforced plastic PP, ABS for durabilityBuilt in temperature sensor to achieve thermal equilibrium between the sensor and the sample for more accurate reading160 mm long with a tip that tapers from 1-1/2" to 3/4" in diameter3.0 m cable with a 7-pin DIN connector for attaching to the meter
The Milwaukee MA861 Dissolved Oxygen Membranes are compatible with the MA860 Galvanic Dissolved Oxygen Probe used on the MW605 MAX Dissolved Oxygen Meter.DESIGN FEATURESOxygen-permeable polytetrafluroethylene (PTFE) membrane sensorEasy to fill with MA9072S Oxygen Electrolyte SolutionIncludes membranes and 5x o-rings
Manufacturer number: 50010242