Oil · Oil-in-Water Sensor

M200 Oil-in-Water Digital Sensor

UV fluorescence measures oil in water from 0 to 50 ppm with 0.001 ppm resolution, +/-3%FS accuracy, and R2 > 0.999 linearity. IP68 protection supports submersion to 10 m, while RS485 output enables fast, reagent-free warning of oil pollution in source water and industrial drainage.

Oil-in-Water Sensor
50 ppm
Max Range
0.001 ppm
Resolution
±3 %FS
Measurement Accuracy
IP68
Full protection · RS485
Features

UV fluorescence for fast oil-pollution early warning

High-sensitivity UV fluorescence responds quickly to aromatic hydrocarbon oils without reagents. R2 > 0.999 linearity and an optional self-cleaning brush help maintain stable, long-term monitoring at water sources and discharge points.

Advanced Circuitry

High-stability fluorescence circuit, high-precision acquisition of weak fluorescence signals, anti-interference.

Easy Installation

Submersion installation to depths of 10 m, with a standard 5 m cable for quick deployment.

Industrial-grade Protection

IP68 protection with plastic or stainless-steel housing and an optional self-cleaning brush.

Fast Response

Fast UV fluorescence response, no reagents, low drift, and stable long-term online operation.

Model Selection

Oil in Water Sensor Model Overview

The series supports multiple installation methods and water types. Filter by installation method, then add a model to your selection list or contact our engineers for verification.

M200-OIW-01
RS485 Digital
Submersion · General Purpose(Plastic Housing)
Range0–50 ppm / 0–0.5 FLU
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialPlastic Housing
Surface WaterDrinking WaterRiver Monitoring
M200-OIW-02
RS485 Digital
Submersion - With Self-cleaning (Stainless Steel)
Range0–50 ppm / 0–0.5 FLU
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialStainless Steel
Municipal wastewaterIndustrial wastewaterDischarge Point Monitoring
M200-OIW-03
RS485 Digital
Submersion - Water Source Type
Range0–50 ppm / 0–0.5 FLU
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialStainless Steel
Water SourceReservoirBuoy Station
M200-OIW-04
4-20mA Analog
Submersion · Analog Output
Range0–50 ppm / 0–0.5 FLU
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialPlastic Housing
Open ChannelRiverLandscape Water
M200-OIW-05
RS485 Digital
Submersion - Low Range Type
Range0–10 ppm
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialStainless Steel
Drinking Water SourcePurified WaterFine Chemical
M200-OIW-06
RS485 Digital
Submersion - Petrochemical Drainage Type
Range0–50 ppm / 0–0.5 FLU
Measurement PrincipleUV Fluorescence
Maximum Depth10 m
Housing MaterialStainless Steel
petroleumChemicalOily WastewaterOil Separator
Specifications

Complete Specifications

General specifications for the series. Range, housing, and output vary by model and are confirmed during selection.

Measured Parameter
Oil in Water(Oil-in-Water)
Working Principle
UV Fluorescence
Measuring Range
0–50 ppm / 0–0.5 FLU
Resolution
0.001 ppm
Measurement Accuracy
±3%FS
Detection Limit
Determined by actual oil sample
Linearity
R²>0.999
Maximum Depth
10 m
Temp. Measurement range
0.0–50.0°C
Power Supply
DC12V (current <50mA)
Housing Material
Plastic Housing / Stainless Steel(By Model)
Process Connection
NPT3/4
Cable Length
Standard 5m (Customizable)
Protection Rating
IP68
Self-cleaning Device
OptionalCleaning Brush
Electrical Connection
RS485 (MODBUS-RTU) or 4-20mA Analog
Installation
Submersion
Warranty
1 year
Applications

Suitable Water Types

Oil in water indicates the level of hydrocarbon pollution and is important for source-water protection and municipal or industrial drainage monitoring. Reagent-free UV fluorescence provides rapid spill warning. Select the housing and cleaning option for your water type below.

Water source and water supply

4
Water SourceDrinking WaterReservoirPurified Water

Municipal & Environmental

5
Municipal wastewaterAgricultural WastewaterSurface WaterRiver MonitoringDischarge Point Monitoring

Industrial wastewater

4
petroleumChemicalOily WastewaterOil SeparatorFine Chemical

Environment and emergency response

3
Landscape WaterOil Spill WarningBuoy Station
Get a recommendation

Tell us your water type and range, and we will recommend the right oil-in-water model

Send us the oil range, water type, and installation conditions. Our engineers will recommend the range, housing, cleaning option, and installation, then configure the probe for plug-and-play connection to an 8-channel monitor.