Online Water Quality Monitoring | RS485 / Modbus Sensors | IP68 Field Instruments
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Water Quality Monitoring Analyzers

AARVI ENVIRO TECH offers online water quality sensors, analyzers, controllers, and monitoring systems for ETP, STP, rivers, lakes, groundwater, aquaculture, wastewater, and industrial process applications.

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Online COD Sensor

DS500 Online COD Sensor

Reagent-free UV254 COD sensor with turbidity compensation and online continuous monitoring.

Specifications
ParameterCOD / organic loadPrincipleUV absorption with compensationOutputRS485 / Modbus compatibleInstallationOnline immersion / flow-cell
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Online BOD Sensor

DS500-B Online BOD Sensor

Environmental protection type BOD sensor for tap water, ETP, STP outlet, natural waters, and industrial process control.

Specifications
ParameterBOD equivalentPrincipleUV254 correlationRangeApplication-specific calibrationOutputRS485 / Modbus compatible
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Online TOC Sensor

DS500-C Online TOC Sensor

TOC and temperature monitoring with automatic compensation for optical path attenuation and turbidity effects.

Specifications
ParameterTOC / organic carbonPrincipleOptical UV measurementCompensationTurbidity and temperatureBodySS316 / titanium option
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Ammonia Nitrogen Sensor

DSN260 Online NH4-N Ammonia Nitrogen Sensor

Online ammonia nitrogen monitoring for lakes, streams, groundwater, and wastewater with pH and temperature compensation.

Specifications
ParameterNH4-N ammonia nitrogenCompensationpH and temperatureProtectionIP68 submersible bodyOutputRS485 / Modbus
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PAHs Sensor

DS810 PAHs Sensor

UV fluorescence PAHs sensor for trace aromatic hydrocarbon monitoring in drinking water, cooling water, and marine applications.

Specifications
ParameterPAHs hydrocarbonsPrincipleUV fluorescenceApplicationDrinking, cooling, marine waterBodySS316 / titanium option
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Self-cleaning Color Sensor

DS660 Self-cleaning Color Sensor

Online color sensor using optical absorption measurement with automatic brush cleaning and turbidity compensation.

Specifications
ParameterColor / hazeCleaningAutomatic brush cleaningCompensationTurbidity compensationOutputRS485 / Modbus
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Online Nitrate Sensor

DSX260 Online Nitrate Sensor

Reagent-free nitrate sensor with pH and temperature compensation for real-time online monitoring.

Specifications
ParameterNO3-N nitratePrincipleReagent-free optical sensingCompensationpH and temperatureInstallationOnline submersible
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Oil in Water Sensor

DS530 Online Oil in Water Sensor

UV fluorescence oil-in-water sensor for industrial circulating water, condensate, wastewater treatment, and surface water stations.

Specifications
ParameterOil in waterPrincipleUV fluorescenceCleaningSelf-cleaning optionOutputMODBUS / digital signal
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Fluorescence Dissolved Oxygen Sensor

DS380 Fluorescence Dissolved Oxygen Sensor

Optical dissolved oxygen sensor for online water monitoring with low maintenance and stable long-term operation.

Specifications
ParameterDissolved oxygenPrincipleOptical fluorescenceMaintenanceLow-consumption, reagent-freeApplicationField / online water monitoring
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Portable Dissolved Oxygen Meter

DYS-1 Portable Dissolved Oxygen Meter

Portable DO meter for field inspection, aquaculture, water treatment, and on-site water quality checks.

Specifications
ParameterDissolved oxygenPrincipleOptical fluorescenceMaintenanceLow-consumption, reagent-freeApplicationField / online water monitoring
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TSS Sensor

DST435 Online Total Suspended Solids Sensor

Online TSS sensor for suspended solids monitoring in wastewater, treatment plants, and process streams.

Specifications
ParameterSuspended solids / MLSSPrincipleOptical back-scatterCleaningAutomatic cleaning optionProtectionIP68 sensor body
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Turbidity Sensor

DS410 Fiber Optic Turbidity Sensor

Fiber optic 90-degree scattered light turbidity sensor with strong anti-interference performance.

Specifications
ParameterTurbidityPrinciple90-degree scattered lightRangeApplication-specific NTU rangeOutputRS485 / Modbus
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Chlorophyll Sensor

DS430 Fiber Optic Chlorophyll Sensor

Fluorescence chlorophyll-a monitoring for seawater, river water, drinking water, and wastewater applications.

Specifications
ParameterChlorophyll-aPrincipleFluorescence detectionApplicationRiver, seawater, wastewaterOutputMODBUS compatible
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MLSS Sensor

DSS450 Online Sludge Concentration MLSS Sensor

135-degree back light MLSS sensor for sludge concentration measurement with automatic cleaning support.

Specifications
ParameterSuspended solids / MLSSPrincipleOptical back-scatterCleaningAutomatic cleaning optionProtectionIP68 sensor body
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Multi-parameter Water Quality Sensor

D2100 Online Multi-parameter Water Quality Sensor

All-in-one sonde supporting up to 8 digital sensors and 9 parameters for rivers, lakes, oceans, and groundwater.

Specifications
ChannelsUp to 8 digital sensorsParametersUp to 9 water parametersCleaningAuto-cleaning optionPower24VDC system
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TDS Salinity Conductivity Sensor

TDS, Salinity & Conductivity Sensors

DS285 TDS, DS280 salinity, and DS480 conductivity sensors with four-electrode technology and temperature compensation.

Specifications
ParameterTDS / salinity / conductivityPrincipleFour-electrode technologyCompensationTemperature compensationOutputRS485 / Modbus
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Blue-green Algae Sensor

DS206 Online Blue-green Algae Sensor

Fluorescence sensor for cyanobacteria detection with automatic cleaning for long-term online monitoring.

Specifications
ParameterBlue-green algaePrincipleFluorescence detectionInstallationOnline submersibleOutputDigital / Modbus
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pH and ORP Sensors

DS510 pH & DS525 ORP Sensors

Digital pH and ORP sensors with built-in temperature support for online long-term monitoring environments.

Specifications
ParameterpH / ORPCompensationTemperature compensationBodyIndustrial online electrodeOutputRS485 / controller compatible
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Industrial Controller

DSMC5100 Industry Controller

Intelligent online controller with automatic sensor recognition, display, alarms, 4-20mA output, and RS485 communication.

Specifications
FunctionIndustrial data controllerInputDigital sensor inputsOutputRelay / communication outputsUsePanel or field monitoring
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