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The rugged ppbRAE Plus is the most sensitive handheld volatile organic compound (VOC) monitor in the world. Its Photoionization Detector (PID) provides true parts-per-billion (ppb) detection for applications from indoor air quality (IAQ) to HazMat/Homeland Security.

The ppbRAE Plus detector can be made wireless with the use of RAELink. This allows real-time monitoring information from the detector to be integrated into an existing AreaRAE system. A wireless, RF (radio frequency) modem allows detectors equipped with Firmware version 1.20 or higher to communicate and transmit readings and other information on a real-time bases with an AreaRAE base controller located up to 2 miles away.

The ppbRAE Plus monitor has replaced the original ppbRAE monitor. Any current customers with a ppbRAE monitor may send it to the factory for an upgrade to the ppbRAE Plus monitor for a nominal fee. For further information on this detector, please contact your appropriate RAE Systems

Key Features
  • New extended range from 1 ppb to 2,000 ppm
  • Proven PID technology: The patented dual channel 3D sensor provides a 3-second response time and sets a new standard for resistance to moisture and dirt, while the superbright 10.6eV lamp provides extra sensitivity for low ppb measurements.
  • Exclusive zeroing tube assures repeatability at low level measurements with a disposable VOC zeroing tube.
  • Self-cleaning lamp and sensor: Our patented self-cleaning lamp and sensor minimize the need for maintenance and calibration.
  • The ppbRAE Plus lamp and sensor can be taken apart in seconds for easy maintenance without any tools!
  • Measure more chemicals than with any other PID: With over 100 Correction Factors built into the ppbRAE Plus’s memory and the largest printed list of Correction Factors in the world (300+), RAE Systems offers the ability to accurately measure more ionizable chemicals than any other PID. When a gas is selected from the ppbRAE Plus’s library, its alarms points are automatically loaded into the meter.
  • User friendly screens make it easy to use for simple applications and flexible enough for sophisticated operations.
  • Drop-in battery: When work schedules require putting in more hours than the 10 hours supplied by the standard NiMH battery, the drop-in alkaline pack supplied with every ppbRAE Plus lets you finish the job.
  • Stores up to 267 hours of data at one minute intervals for downloading to PC (with the datalogging option).

HazMat/Homeland Security

  • Searching for Toxic Industrial Chemicals (TICs) and Chemical Warfare Agents (CWAs)
  • 3-second response enables quick assessment of patients in decontamination lines

Indoor Air Quality (IAQ) Surveys

  • Outgassing of new building materials (carpet and fabrics)
  • Searching for mold and mildew by measuring microbial VOCs (mVOCs)

Industrial Hygiene/Safety

  • Worker exposure studies for very toxic chemicals


  • Perimeter fenceline monitoring
  • Low-level leak detection

For additional information on this product:

      ppbRAE Plus Data Sheet (281 KB)

      ppbRAE Plus FAQs (227 KB)


Training Documents

     Basic Operation (1.3 MB)

Application Notes


      AP-000: RAE Systems PID Training Outline (185 KB)
      AP-201: Measuring Ammonia (NH3) with Photoionization Detectors (PIDs) (209 KB)
      AP-202: The ABC's of Gases in the Industry (150 KB)
      AP-203: PIDs as a HazMat Response Tool (582 KB)
      AP-204: Pulp & Paper: Measuring Turpentine & ClO2 (315 KB)
      AP-205: Measuring Heat Transfer Fluids with a PID (148 KB)
      AP-207: PIDs as an Arson Investigation Tool (61 KB)
      AP-211: PIDs for Continuous Monitoring of VOCs (453 KB)
      AP-212: Using PIDs for Indoor Air Quality (IAQ) Surveys (322 KB)
      AP-214: Environmental Applications for PIDs (257 KB)
      AP-216: Using PIDs in Terrorist Chemical Attacks (215 KB)
      AP-218: Lengthening the Interval Between Calibration Checks (13 KB)
      AP-220: Using PIDs in Clandestine Drug Lab Investigations (354 KB)
      AP-221: Using PIDs for Assessment of Exposure Risk in Unknown Environments (54 KB)
      AP-226: Comparison of Photoionization (PIDs) and Flame Ionization Detectors (FIDs) (123 KB)

Technical Notes


      TN-102: Facts About PID Measurements (206 KB)
      TN-106: Correction Factors, Ionization Potentials, and Calibration Characteristics (276 KB)
      TN-112: Exporting Datalogged Data to Microsoft Excel® (160 KB)
      TN-118: Use of RAE PIDs for Soil Headspace Measurements (137 KB)
      TN-119: Calculation of STEL, TWA, MIN, MAX, and Average Values for ToxiRAE PIDs (123 KB)
      TN-120: Measuring Correction Factors for Volatile Compounds with MiniRAE & ToxiRAE PIDs (138 KB)
      TN-123: Diagnostic Modes for RAE Instruments (157 KB)
      TN-124: PID Lamp Characteristics (116 KB)
      TN-130: Setting Alarm Limits for Mixtures (107 KB)
      TN-132: RAE Instruments' DOS Firmware Loading (163 KB)
      TN-140: Extension Tubing Volume and Delay Time (163 KB)
      TN-141: Monitor Remote Control Functions (165 KB)
      TN-142: MiniRAE 2000 Preprogrammed Compound Library (167 KB)
      TN-146: Turning on UV Lamps in a PID Monitor (93 KB)
      TN-148: Measurement of Phosphine (PH3) by PID in the Food Storage Industry (100 KB)
      TN-150: ppbRAE Calibration and Interpretation of Readings (389 KB)
      TN-157: Moisture Exchange Tubes for Humidity Control of Test Gases (169 KB)
      TN-158: Conversion of PID Readings to Methane Equivalent FID Response (174 KB)
      TN-159: Nerve Agent Measurements by PID (149 KB)
      TN-161: Intrinsic Safety and Hazardous Locations (163 KB)
      TN-162: Use of C-Filter Plugs (177 KB)
      TN-165: Combating Drift in Portable and Fixed PIDs (202 KB)
      TN-167: Proper Use of Dilution Fittings on Pumped Monitors (146 KB)
      TN-172: Ensuring Measurement Accuracy and Consistency of ppbRAE by Calibrating with RAE Single-Use VOC Zeroing Tube (490 KB)
      TN-173: Operation Guide for Demand-Flow Regulator with Calibration Gas (190 KB)
      TN-174: Decontamination Procedures for Monitors Exposed to Chemical Warfare Agents (144 KB)
      TN-178: Humidity Filtering II Tube for PID Measurements in Humid Environments (245 KB)

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