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Real-Time PAH Sensor Measures The Sum Of The PAH Passing In Front Of The Lens

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Minimum Order Quantity: 1
Price: Determined by the number of specific orders
Packaging Details: Carton packaging
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 200 Piece/Pieces per Month
Detail Information
Output Signal: RS-485, MODBUS Protocol Theory: Fluorescence Method
Measuring Range: 0~1000 Ppb Protection Level: Protection Level
Power Supply: 12-24VDC Response Time: <10s
Working Temperature: 0~ 50°C

Product Description

Real-Time PAH Sensor Measures The Sum Of The PAH Passing In Front Of The Lens

Product Introduction

Desun Uniwill PAH Monitoring Sensors, designed for detecting Polycyclic Aromatic Hydrocarbons, is a cutting-edge device revolutionizing environmental monitoring. PAHs are organic pollutants with diverse sources, emphasizing the critical need for real-time monitoring to control pollution and assess associated risks effectively.


Desun Uniwill Online PAHs (Polycyclic Aromatic Hydrocarbons) Sensor works in the measuring principle of UV fluorescence, it’s more sensitive and specific than the conventional infrared scattering or absorption methods. This makes it possible to determine the smallest traces of PAHs, e.g. in drinking water, but also in cooling water condensates. It has an RS-485 interface that allows easy and fast sensor configuration via Modbus.


Real-time PAH sensor



-PAH Measurement Range: 0 – 1000 ppb (µg/L)
-Equipped with an RS-485 interface that enables simple and quick sensor configuration via Modbus
-In situ measurement, no sampling no reagents
-Installations on the inlet and outlet of the scrubber
-Fluorescence probe for PAH/Oil in water measurements
-Corrosion-free Housing
-Detects oil in water through UV fluorescence
-Real-time in-line measurement
-Simple installation and operation


Technical parameters
Product Name
PAH Sensor PAHs Analyzer
Principle Fluorescence Method Fluorescence Method
0~500 ppb
0~1000 ppb
( Can be customized)
0~50 ppb
0~100 ppb
0~1000 ppb
( Can be customized)
Detection Limit 5ppb 0.5ppb
±5%FS ±3%FS
Response time <10s <10s
Minimum test intervals 5s 5s
RS-485, Modbus RTU RS-485, Modbus RTU
Power supply 12-24VDC 12-24VDC
Power consumption 1.5W 1.5W
Dimensions (L x Ø)
Φ160mm*38mm 142mm*96mm*45mm
Weight 900g 720g
Protection Level Ip68 Ip68
Storage temperature -20-80℃ -20-80℃
working temperature 0~ 50°C 0~ 50°C
Inflow velocity
0.1-10 m/s

0.1-10 m/s
























There are two measurement modes to choose from:


1. Analyzer mode,

Combine the instrument with a flow-through tank to lead the liquid into the glass tube for measurement.


2. Probe mode,

Online measurement of PAH (oil) content in water by UV fluorescence method with fast response and high sensitivity.

No need for sampling and sample preparation, no reagents.

Can be connected to supporting instrumentation, and can achieve 4-20mA analog output, to achieve a variety of control methods.


The field of application ranges from petrochemistry, and leakage detection in cooling and wastewater streams to environmental monitoring.


Cases of Desun Uniwill PAHs sensors used in EGCS


-Environmental Monitoring: Detecting PAH levels in the air, especially in urban and industrial areas.
-Occupational Health: Monitoring PAH exposure in workplaces like manufacturing plants, refineries, and construction sites.
-Disaster Response: Assessing air quality during and after events like wildfires or chemical spills.
-Indoor Air Quality: Monitoring PAH levels in homes and buildings, particularly those using solid fuels for heating or cooking.


Polycyclic Aromatic Hydrocarbons (PAHs) are a group of organic compounds with multiple aromatic rings. They are found in the environment primarily due to incomplete combustion of organic matter and are known for their potential health hazards. Real-time PAH sensors are crucial for monitoring air quality, especially in industrial areas or regions affected by wildfires.



Contact Details

Phone Number : +8618182429986

WhatsApp : +8618182429986