Target: VOC,Energy≤10.6eV Volatile Gases
Model: 4R-PID
Detection range: 0~10000 ppm
Characteristics: High sensitivity; Wide detection range
Response time: ≤5 S

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4R-PID is a high-performance photoionization PID sensor. It has the characteristics of high sensitivity, wide detection range and wide spectrum. It can detect thousands of volatile organic compounds (VOCs) and some inorganic vapors in different application fields. The detection range starts from 1ppb and is up to 10000 ppm, with extremely fast response speed and high resolution. It can be used in kinds of portable and fixed instruments and various of analytical instruments.


  • Emergency Response
  • Industrial Hygiene
  • Personal Safety
  • Detection of VOCs
  • Monitoring of Environmental Quality
  • Oil and Petrochemical Safety
  • Soil Pollution and Management


  • High sensitivity;
  • Wide detection range;
  • Fast response time;
  • Reliable stability;
  • Long service life;
  • World leading technology.


Detection Range(ppm) 0~10 ppm 0~40ppm 0~100ppm 0~6000ppm 0~10000 ppm  
Resolution 1ppb 10ppb 25ppb 500ppb 2ppm  
Sensitivity(mv/ppm) >40 >10 >5 >0.1 >0.1  
Target Gas VOC,Energy≤10.6eV Volatile Gases
Working Voltage 3.2~5.5 V
Zero Voltage U0>20 mV
Output Voltage 0.02~2.0V (3.3 V max)
Response Time(T90) ≤5 S
Accuracy ≤±2% (No Condensation)
Humidity 0~99% (No Condensation)
Working Pressure 800~1200 mbar
Storage Tem 0~25℃
Working Tem -20~50℃
Lifespan 3 years (lamp and electrode not included)
Warranty 12 Months (lamp and electrode not included)

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.