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SX-GVOCPSA Series
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SX-GVOCPSA Series

SX-GVOCPSA Series

The SensorsX SX-GVOCPSA Series is a compact photoionization detector (PID) VOC gas sensor designed for high-sensitivity volatile organic compound (VOC) detection. It uses a 10.6 eV UV lamp to ionize VOC molecules and provides detection from ppb levels to high-ppm concentrations with fast response, high stability, and long operating life. It is suitable for environmental VOC monitoring, industrial safety, and portable VOC detection instruments.

  • Model: SX-GVOCPSA
  • Detection Principle: Photo-ionization detector (PID)
  • Target Gas: VOCs with ionization potential <10.6 eV
  • Detection Range: 10 ppb–10,000 ppm (available variants: 0–10 ppm / 0–40 ppm / 0–100 ppm / 0–1000 ppm / 0–6000 ppm)
  • Sensitivity: ≥40 mV/ppm / ≥12 mV/ppm / ≥6 mV/ppm / ≥0.6 mV/ppm / ≥0.1 mV/ppm
  • Response Time: T₉₀ ≤5 s
  • Zero Drift: 2%
  • Resolution: 1 ppb / 10 ppb / 25 ppb / 250 ppb / 500 ppb (depending on range variant)
  • Operating Temperature: −20°C to +60°C
  • Service Life: 5 years (UV lamp excluded)
Ordering Code
$346.00

Product Overview

The SX-GVOCPSA Series is a photoionization VOC sensor based on PID technology. It detects volatile organic compounds (VOCs) across a wide range of environments, from extremely low concentrations at the ppb level to high-ppm concentrations. The sensor uses a 10.6 eV high-energy UV lamp to ionize VOC molecules, and the resulting ions are converted into an electrical signal by the measurement electrodes. Most VOC molecules in air can be ionized by the UV radiation, while the main constituents of air, such as N₂, O₂, CO₂, and H₂O, remain unionized. This enables broad VOC detection in ambient gas with ppb-level sensitivity.

Main Features

  • High Sensitivity  —— Detects VOCs from ppb to high-ppm levels
  • Wide Measurement Range  —— Multiple range variants from 0–10 ppm up to 0–6,000 ppm
  • High Stability  —— Consistent long-term performance
  • Long Operating Life  —— Service life: at least 5 years, excluding the UV lamp  

Product Application

VOC environmental monitoring
Industrial occupational health and safety
Portable VOC detection instruments

Technical Data

Measurement
Model SX-GVOCPSA
Detection Principle Photo-ionization Detector (PID)
Detection Gas VOC
Detection Range 0–10 ppm / 0–40 ppm / 0–100 ppm / 0–1000 ppm / 0–6000 ppm
Maximum Overload Concentration 15 ppm / 60 ppm / 150 ppm / 1500 ppm / 7000 ppm
Sensitivity & Output
Output Signal Voltage output
UV Lamp Ionization Energy 10.6 eV
Working Voltage 3.3–5 V
Zero Voltage 45–90 mV
Sensitivity ≥40 mV/ppm / ≥12 mV/ppm / ≥6 mV/ppm / ≥0.6 mV/ppm / ≥0.1 mV/ppm (depending on range variant)
Resolution 1 ppb / 10 ppb / 25 ppb / 250 ppb / 500 ppb
Response
Response Time T₉₀ ≤ 5 s
Operating Current ≤35 mA
Stability & Service Life
Service Life 5 years (UV lamp excluded)
Environmental Conditions
Operating Temperature −20°C to +60°C
Operating Humidity <95% RH, non-condensing
Operating Pressure 80–120 kPa
Mechanical Data
Body Diameter Ø20.4 mm
Body Height 16.8 mm
Pin Length 4.5 mm
Pin Diameter Ø1.5 mm

Certifications & Compliance

 

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