Formaldehyde Meter Model: Y-300


➢   Meets OSHA Accuracy Requirements

➢   Filter Technology  Eliminates Interference

➢   Certified by Third Party*

➢   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 Formaldehyde Meter measures formaldehyde concentration in air in a range of 0-30 ppm at a resolution of 0.01 ppm.  It is suitable to measure the employee exposure level in workplaces where formaldehyde is used routinely or the 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.

Filters eliminate Interference

The instrument uses two filters to eliminate the signal caused by interfering substances. Measurement is first made with a filter to determine the background level. A second filter will allow the meter to subtract the background and give the formaldehyde

vapor concentration without interference.

*Third Party Certification

The meter has been shown to meet  OSHA accuracy requirements by an ISO 9001 certified third party testing lab. The instrument was tested using formaldehyde vapor standardized using NIOSH Method

  1. 2016. The accuracy and precision of the meter was determined by making repetitive measurements of the known concentration. The bias of the measurements was found to be <11% and CV <6%, making the accuracy well within the range allowed by OSH


Sensor Type


Measuring Range

0-30 ppm


0.01 ppm

Sensor Life

2 years

Response Time

< 60 sec.

Operating Temp.

-20 Cº to +40 Cº

Relative Humidity Range

15-90% non-condensing


Audible, 80 db

Dimension:  H x D x W

4.75” x 2.5” x 1.5”


170 gms

Power Source

9-V Alkaline Battery


1 year

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