Volatile Organic Compound VOC Meters, Monitors

For handheld and long-term VOC measurement and logging

DirectSense XM VOC Probe-Datalogger

GrayWolf’s portable, semi-permanent, and continuous VOC probes, meters, monitors, and instruments are highly versatile, for low parts-per-billion ranges up to high PPM toxic VOC exposure ranges. Volatile Organic Compounds (VOCs) emanate from a broad range of sources in industrial air quality and commercial, institutional, and residential indoor air quality (IAQ) applications. GrayWolf offers several different plug-and-play Photo Ionization Detector (PID) sensors to choose from; with ranges optimized for your specific application. The DirectSense XM-3 probe includes your choice of any of those PIDs, along with relative humidity and temperature sensors. Our DirectSense XM-5 probe also includes the sensors for %RH, °C/°F, and accommodates your choice of PID plus up to 2 specific gas sensors (electrochemical or NDIR). The DirectSense XM-8 probe offers a PID, %RH, °C/°F, and the choice of NDIR (exceptionally accurate carbon dioxide CO2) and/or up to 5 electrochemical specific gas sensors (up to 8 total) including your choice from HCHO, CO, NO2, H2S, NH3, Cl2, and many others. Coupled with the power of our versatile meters and monitors, end-users can efficiently log and annotate readings, while easily accessing on-board information about specific volatiles and potential sources.

AdvancedSense XM VOC Meter

Optional GrayWolfLive™ software allows remote access to instrument data & notes via smartphones, IPads, Droids, PCs, etc.

Meter pouches and probe belt clips allow hands-free operation.

Choice of low ppb, low ppm, mid-range ppm, and high %RH VOC optimized smart PID sensors
Excellent sensitivity, very low limits of detection (down to <5 ppb); crucial for IAQ/green building applications
%RH and °C/°F are also included; add up to 5 specific gas sensors, in addition to the PID, in one probe
Choose from 25 different electrochemical gas sensors, such as formaldehyde (HCHO) carbon monoxide (CO), ozone (O3), ammonia (NH3), Cl2, H2S, NO2, NO, SO2, ClO2, HCN and more
In addition, an exceptionally high accuracy, fast response NDIR carbon dioxide (CO2) sensor is available (thus perfect for LEED, WELL or other ongoing maintenance applications where this sensor is accepted technology)
Ideal for screening for if/when and where air sampling might be advised
Rapid response; ideal for “blood hounding” VOC sources
Months of basic multi-parameter data storage on the DirectSense XM probe-datalogger
For extended features, including virtually unlimited datalogging, connect to a GrayWolf manufactured instrument (AdvancedSense® or WolfPack®), a GrayWolf supplied rugged Windows Mobile Tablet or rugged Android device, or to your own Laptop/Notebook PC/Android/iOS/MacOS device
Connect to a GrayWolf manufactured instrument (AdvancedSense® or WolfPack®), a GrayWolf supplied WIN Mobile Tablet or to your own Windows Laptop/Notebook PC
Log portable spot measurements, or monitor and record data unattended over time in secure trend data-logger housing
Store enhanced survey information; data and text, audio, drawings, video notes and more; all auto-associated with relevant location/site files
On-board list of potential sources of measured VOC levels and other useful info
Almost all Total VOCs (TVOCs) of concern for Indoor Air Quality (IAQ) situations are detected. Click here for more IAQ application options
On-board correction values for specific volatiles versus standard calibration compound (isobutylene)
Our optional GrayWolfLive cloud platform enables remote access to live and logged VOC data, from one or multiple GrayWolf probes, on your smartphone or on just about any internet connected device. View data as live readings, tables, gauges and/or graphs and more. Click here for more info
Software handholds users through user calibration procedure
Extremely easy-to-use
Desktop data analysis and reporting software is included.
Optional advanced report generation (ARG) software significantly reduces any report generation time on VOC testing and is available with templates for LEED, WELL reporting on TVOC measurements

GrayWolf TVOC, multi-gas monitors, meters, detectors and instruments efficiently log your data and enable enhanced documentation for your surveys by means of cutting-edge sensor technology, advanced software and the power of mobile computing.

Example Screens

AdvancedSense XM Rugged
GrayWolf Meter Screens

GrayWolf offers various VOC, as well as IAQ and Toxic Gas Exposure Kits that include a DirectSense XM total volatile organic compounds (TVOC) probe-datalogger with a choice of PID and other smart sensors and include a rugged, purpose-built AdvancedSense XM meter, or GrayWolf supplied rugged Android device, or GrayWolf supplied rugged Windows tablet, or a set-up to use your own iOS/Android/Windows device.

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WolfSense application software, WolfSense PC desktop data transfer & reporting software, universal AC adapter/charger w/extension cable, hard-shell case and additional accessories. Kits can be expanded for particulate, air velocity, differential pressure, WolfSense Advanced Report Generation software, GrayWolfLive cloud logging/reporting software and more.

Optional “Advanced Report Generator: IAQ Edition” software automates efficient production of detailed IAQ (and LEED/WELL green building) reports. Click here for an example WSARG IAQ report.

Choose Your Extended Features Platform(s)

Windows, iOS, Android Devices

Bluetooth connection direct to Windows, Android and/or iOS devices (tablets, smartphones, etc.). Use your own device (via WolfSense Mobile/LAP apps), or a GrayWolf supplied rugged device. Audio/photo/video text notes, advanced datalogging, on-screen graphing, sensor tips and many other features.

AdvancedSense XM

GrayWolf’s purpose-built AdvancedSense® XM meters are feature rich. Up to 32 simultaneous parameters connecting multi-sensor DirectSense® XM probe(s), in addition to other internal and external sensors (and/or particle meters) via cable and/or Bluetooth LE. Also use this meter’s Wi-Fi to access all parameters via the cloud.

WolfPack XM

GrayWolf’s new WolfPack® XM monitors combine the majority of GrayWolf parameters and features into a single portable, benchtop, and continuous monitoring unit, plus connection to external DirectSense probes, and to GrayWolfLive.

GrayWolfLive Cloud

GrayWolfLive^® secure cloud platform for remote real-time access, datalogging, and alerts. Connect straight from Wi-Fi enabled DirectSense XM probes or via various GrayWolf meters, monitors, tablets, Android, or iOS devices. View data as text, graphs, gauges, and/or tables.