The TSI Quest™ EVM Environmental Monitors simultaneously measure particulates and gas concentration in real-time. These monitors measure select toxic gases, volatile organic compounds (VOCs), relative humidity, temperature and air velocity.

• Particulate, gas and photoionization detector (PID) measurement from a single device
• Less equipment to carry to job site; compact, user-friendly design
• 90-degree light scattering laser photometer measures particulates in real-time
• Proprietary technology for selecting particulate settings; no need for external cyclones
• Built in sampling pump allows for gravimetric analysis
• Large, easy-to-read display with trend graphing of measurements
• Time history data logging and compatibility with Detection Management Software makes analysis efficient