O3Alert Ozone Monitoring System

Our Price:
PayPal Credit

The O3Alert Ozone Monitoring System is an easy way to keep track of ozone levels in the room.

As ozone becomes more popular, there are still a number of people who believe ozone at any concentration level in the air poses a respiratory risk. A lot of people have differing opinions on what constitutes a safe ozone concentration, but in order to operate a lawful business one must follow guidelines set by OSHA (Occupation Safely and Health Administration). By monitoring the ozone levels in the room you can confidently respond to any customer concerns and let them know safety is your number one priority.

The Occupational Safety and Health Administration (OSHA) provides recommendations for exposure limits to various amounts of ozone. These are used to determine what is acceptable and not acceptable in places open to the public, particularly medical and dental offices. While not everyone agrees with these limits, if you need to ensure your levels are in line, the O3Alert is the right choice.

This unit can be hung on the wall or placed on a flat surface. There are no complicated wiring setups: simply plug it in and push the on button. Due to its small size, it doesn't take up much space and is unobtrusive.

Monitoring Ozone Levels

The unit will flash blue when levels are up to .1ppm (considered safe for up to 8 hours by OSHA), green if the levels are between .11 and .29ppm (considered safe for up to 15 minutes), and red if levels are .3ppm or higher (considered potentially damaging to respiratory tissues).


There are many potential benefits to the use of ozone, but if you are a business required to maintain specific limits set by OSHA, or a home user who simply wants to monitor the ozone in the air, the O3Alert Ozone Monitoring System is all you need.


  • PPM Range: .01 to 1.0 ppm of ozone gas
  • Sensor: Electrochemical sensor
  • Warm-up Time: 4 Hours
  • Electrical: 12VDC - Universal
  • Voltage (100-240VAC) - Single phase 50/60 Hz
  • Warranty: One Year

Return Policy: 30 days with 15% restock fee.

You can read our current reviews or write your own below.