1-203-402-0477 [email protected]


Harnessing State-of-the-Art Technology for Air Measurement Applications

AdvancedSense PRO and DSII Multi Parameter Meter

Reliable data-collection and reporting has never been easier

DirectSense II

Build your probe for your needs with GrayWolf’s highly innovative DirectSense II

Green Buildings

Green Building Indoor Air Quality IAQ Monitors, Meters for LEED, WELL, ARC & other Testing

Toxic Multi-Gas Meters

Toxic Multi-Gas Monitors for handheld & long-term Toxic Gas measurement and logging

Portable Meters

Monitoring kits for portable, semi-permanent and/or continuous use. Flexibility for current and future needs.

Long Term Logging

Desktop logging via connection to a meter, tablet or the cloud. Security cases, and tripods are also available for a broad range of monitoring applications.

Continuous Monitoring

Wi-Fi enabled DirectSense II probes can send real-time info, and trend-log data to smart displays, smartphones, tablets: most any smart device.


Exceptionally accurate differential pressure, air velocity (hotwire or pitot tube) and %RH. Measure Ventilation Rates, Volume Airflow and much more.

Particulate Meters

Particulate Meters for IAQ, PM2.5, PM10 Measurement and Data-Logging.

Cloud Software App

With GrayWolfLive, view real-time readings on your smart phone with cloud-based logging, remote access and control any of GrayWolf’s Wi-Fi enabled probes, meters or monitors.

GrayWolf Sensing Solutions

Since 1998, the worldwide market leader in high performing portable, datalogging and long-term fixed monitoring indoor air quality (IAQ) meters and monitors.

Advanced sensor, instrumentation, software and reporting technology for superior environmental test instrumentation in facilities from schools to hospitals to office/government buildings to manufacturing plants, shipboard and beyond. Worldwide distribution and service, with a strong and growing presence in other environmental air measurement markets.

DirectSense II IAQ, TOX Multigas Meter



Connect to the meter/monitor/tablet/smartphone of your choice

VOC Toxic Gas Meter


GrayWolf’s top-of-the-line, feature-rich platform is the AdvancedSense® Pro. Connect our accurate, plug-and-play DirectSense® II multi-sensor smart probe(s) via cable or wireless.

DirectSense II


The AdvancedSense BE is a rugged, purpose-built Meter with many on-board educational and easy-to-use, survey documentation/reporting features.

DirectSense II with Ruggedized Cradle


A choice of GrayWolf supplied WIN10 Tablets connect via cable or wireless. Photo/audio/text notes, advanced data-logging, multi-probe connection and many other features as per the AdvancedSense Pro.

GrayWolfLive with DSII
GrayWolfLive® cloud platform for remote real-time access, data-logging and alerts. Connect straight from WiFi enabled DirectSense II probes or via various GrayWolf meters, tablets or smartphones.

To Request Detailed Information:


A small sampling listed by selected industries.

Aerospace Customers

  • Airbus
  • Boeing Commercial Airplane Group
  • Bombardier
  • Cessna Aircraft Co
  • General Electric
  • General Dynamics
  • Hindustan Aeronautics
  • Lockheed Martin
  • North American Space Agency (NASA)
  • Northrup Grumman
  • Pratt & Whitney
  • Raytheon
  • ST Aerospace (Singapore)
  • SpaceX
  • United Technologies Research Center
  • US Federal Aviation Administration (FAA)

Airports & Airlines

  • Air Canada
  • American Airlines
  • Australia Pacific Airports
  • British Airways
  • COPA Airlines
  • Dubai Airport Authority
  • Egypt Air
  • Grantley Adams Int’l Airport (Barbados)
  • Greater Orlando Airports
  • Los Angeles International Airport
  • Lufthansa
  • Metro Nashville Airport Authority
  • Metropolitan Washington DC Airports Authority
  • Qantas
  • Scandinavian Airlines System

Architecture and Construction

  • Architect of the (US) Capitol
  • BAM Techniek
  • Burj Khalifa
  • Burns & McDonnell Engineering
  • Camp Dresser & McKee
  • Consigli Construction
  • Delos Living
  • Healthy Home Solutions
  • Phoenix Constructors
  • Public Works & Government Services Canada Dept. of Architecture & Engineering
  • Skidmore Owings & Merrill
  • US Green Building Council
  • XI’an Univ of Architecture & Tech
  • Baker Group “We began using the IQ-610 probe in the fall of 2008. It has surpassed our standards when using it for measuring IAQ for LEED Indoor Environmental Quality credit 3.2.”Thomas C. Hardinge, LEED AP
If you are a GrayWolf Customer (or potential Customer) and would care to tell us about your GrayWolf experience, Click Here. We greatly appreciate your valuable feedback and are always open to your suggestions to innovate and improve!


WiFi enabled DirectSense® II Multi-Parameter Smart Probes

WiFi enabled DirectSense® II Multi-Parameter Smart Probes

GrayWolf’s highly versatile DirectSense II probes are now available with WiFi built right into the probe. These cutting-edge air monitoring probes accommodate from two (2) up to eight (8) plug-and-play smart sensors into a single wall-mounted, desktop and/or portable...

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Rugged Tablets

Rugged Tablets

May 22, 2020

GrayWolf supplied rugged tablets now available for reliable spot checks and data logging. 

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GrayWolfLive® 3.0 Cloud Platform

GrayWolfLive® 3.0 Cloud Platform

April 17, 2020

GrayWolf introduces a greatly enhanced version of its versatile cloud-based web application. Access real-time and logged data from any of our Wi-Fi enabled AdvancedSense® meters, WolfPack® monitors or WolfSense® LAP tablet-based kits. In addition, our cutting-edge…

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Upcoming Events

IAQA Virtual Show 2021

IAQA Virtual Show 2021

2021 IAQA Global Virtual Annual Meeting & Expo February 15-18, 2021 https://annualmeeting.iaqa.org/

AIHce 2021

AIHce 2021

May 24-May 26 ADVANCING WORKER HEALTH AND SAFETY https://www.aihceexp.org/

For Detailed Information: