Environmental Sensors Logo   Contact Environmental Sensors
Y Series Toxic Vapor Meters


  • Meets OSHA Accuracy Requirements
  • Continuous Real-Time Reading
  • Calibrated Using NIST Traceable Gas
  • Time Weighted Average (TWA)
  • Short Term Exposure Limit (STEL) and Peak
  • Compact, Light Weight, and Durable
  • Audible Alarm
  • Data Logging Available
  • Made in USA


Environmental Sensors’ handheld Toxic Vapor Meter measures the concentration of the harmful chemicals in air. It is suitable to measure the employee exposure level in workplaces where dangerous chemicals are used routinely or indoor air quality in homes or offices.

The operation is very simple. Just turn on the meter and follow the prompt on the LCD screen. After a short warm-up routine, the meter will start showing the real-time concentration in ppm at 10 second intervals continuously. When the concentration reaches above the alarm’s set level, the meter will beep repeatedly to alarm the user. The four button panel makes it easy to access menu features. With a touch of a button, the meter displays TWA(8 hour average), STEL(15min. average) or peak concentration. The concentration can be shown in ppm or mg/m3.

With a new Zeroing feature, it is easier to set a new baseline without turning off the meter.

The instrument can be equipped to record all measurements made in a log file that includes the date, time and number of exposure points. The internal data logging storage can hold up to 160 hours of data.


To ensure the accuracy of the instruments, our trained calibration technicians calibrate each meter using NIST traceable gas before shipment. All Environmental Sensors’ meters come with a calibration certificate. Factory re-calibration service is available at ESC.

Available Models

Chemical Detected Model No. Measuring Range Resolution
AmmoniaY-800 0-100 ppm 0.1 ppm
Carbon Monoxide Y-500 0-1000 ppm 0.1 ppm or 1 ppm
Chlorine Y-400 0-20 ppm 0.1 ppm
Ethylene Oxide Y-100 0-20 ppm 0.1 ppm
Formaldehyde Y-300 0-30 ppm 0.01 ppm
Glutaraldehyde Y-200 0-20 ppm 0.01 ppm
Hydrogen Sulfide Y-900 0-50 ppm 0.1 ppm
Nitric Oxide Y-700 0-100 ppm 0.1 ppm
Nitrogen Dioxide Y-1400 0-20 ppm 0.1 ppm
Ozone Y-1200 0-2 ppm 0.01 ppm
Sulfur Dioxide Y-1300 0-20 ppm 0.1 ppm

Standard Accessories

Carrying Case
Calibration Certificate
9 Volt Alkaline Battery

Optional Accessories

Terminal Software CD
USB Data Cable
AC Adapter


Sensor Type Electrochemical
Sensor Life 2 years in air
Response Time < 60 sec.
Operating Temp. -20 Cº to +45 Cº
Relative Humidity Range 15-90% R.H. non-condensing
Alarm Audible, 80 db
Dimension: H x D x W 4.75” x 2.5” x 1.5”
Weight 170 gms
Power Source 9-V Alkaline Battery
Warranty 1 Year

Customer Care

We pride ourselves on excellent customer service. Our service department staff is always available for troubleshooting, repairs or re-calibration service. Proper maintenance can prolong the instrument's lifespan.

Contact Us for a Price Quote!

Sensor Electronic Sensor
© Copyright 2014 Environmental Sensors Co. All Rights Reserved