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A2Z Ozone Monitor / Ozone Analyzer front
A2Z Ozone Monitor / Ozone Analyzer front and top view
A2Z Ozone Monitor / Ozone Analyzer set up diagram
A2Z Ozone Monitor / Ozone Analyzer top and front views
A2Z Ozone Monitor / Ozone Analyzer top view of Output Wiring Instructions
A2Z Ozone Monitor / Ozone Analyzer back view with tubing
A2Z Ozone Monitor / Ozone Analyzer Back right side
A2Z Ozone Monitor / Ozone Analyzer back setup
A2Z Ozone Monitor / Ozone Analyzer back left side

A2Z Ozone Monitor / Ozone Analyzer

Regular price $ 1,250.99 Sale price $ 1,499.99

Easily Test Your Flow Rate

A2Z Ozone is now introducing a simple way to test the flow rate of your ozone generator.

Ozone Tester in mg/L

The A2Z Ozone Monitor is an ozone tester. It will determine the amount of ozone in milligrams per liter your ozone generator produces.

Improved Performance and Efficiency

This ozone monitor is a vast improvement over what is generally available on the market. It efficiently measures ozone, and we can offer it at a lower price because of its smaller size.

A2Z Ozone Monitor Will Fit Where You Need It

It also fits into most process setups, which makes your project easier to manage and maintain.

Connect a Printer to Your A2Z Ozone Monitor / Ozone Analyzer

You can find the connectors at Output 8, 9 , or 10 for the printer. (See Output Wiring Instructions below.)

New Look!

Markings are now white-on-black, which are easier to read.

Output Wiring Instructions

1) RS485 A
2) RS485 B
3) 4-20mA +
4) 0-5 +
5) Error Alarm
6) High data alarm
7) Low data alarm
8) RXD printer
9) TXD printer
10) GND printer
11) GND 4or 4-20mA&0-5V
12) common point for alarm
13) auto zero 1
14) auto zero 2

Simple Directions for Use:

As soon as you plug the A2Z Ozone Monitor / Ozone Analyzer into an electrical outlet, the unit turns on.

The A2Z Ozone Monitor / Ozone Analyzer takes about 120 seconds to completely initialize.
Attach PTFE tubing to the Ozone In port located on the back of the A2Z Ozone Monitor / Ozone Analyzer.
Attach the other end of this tubing to the Ozone Outlet on the ozone generator of your choosing.
To get the most accurate reading, zero out the A2Z Ozone Monitor / Ozone Analyzer with the red Enter/Zero button.

Find the red Enter/Zero button on the front of the monitor:

  1. Run the ozone generator unit through ambient air or oxygen source, depending on what reading you are trying to achieve.
  2. While the unit is on, press the red “Enter” button.
  3. Press “Enter” again after the unit beeps.
  4. Zero the monitor at 1 L/minute flow rate and then start the ozone generator to get accurate readings.

This meter is for reading purposes only.
Actual results are at a 1 liter/minute flow rate.
Use PTFE tubing for best results.


mg/L x 1L/min x 60min/hour = mg/hour ozone output

ozone monitor reading at 1 LPM: reading 4.2 mg/L

4.2 mg/L x 1 L/min x 60min/h = 252 mg/h O3 output

Shipping Policy: Please see our Shipping Policy Page for details.

Dimensions: 9 inches (L) x 5.5 inches (W) x 4 inches (D)
This monitor has a universal voltage between 110V to 240V.


All of our generators come with a one year full parts and service warranty, we also offer a 30-day money back guarantee! Return your unit in new condition and receive a refund minus 10% restocking fee. Shipping is paid by the customer.

If you have issues with a product that is under warranty and you are located in the USA, please call A2Z Ozone, Inc. at 502-499-4977 between the hours of 8:00 am and 4:00 pm EST Monday through Friday, or email We will troubleshoot with you over the phone. If we cannot resolve the issue over the phone, you can send the unit back to us at: 

A2Z Ozone
1844 Cargo Court
Louisville, KY 40299

We will repair the unit and ship it back. In the case that it cannot be repaired, we will send you a new one. 

We offer an extended 1-year warranty on new units. If purchased, this year will be added to the 1-year warranty provided with each unit.  Shipping will be paid by the customer for extended warranties. 

International shipping will be paid for by the customer both ways.

We at A2Z Ozone, Inc. are committed to providing you with the best service possible. 

 Note: refunds cannot be applied to accessories or parts. No returns are accepted for accessories or parts. If you have a problem with an accessory or part, please call us to troubleshoot.  

In Case of Accidental Leakage of Ozone, Keep the Ozone Generator in a Well-Ventilated Area.

Ozone Generators Emit Ozone. Do Not Inhale Ozone.

Ozone Generators generate high voltage.

Our ozone generators are designed and Distributed by A2Z Ozone, Inc. in Louisville, Kentucky USA.

EPA Est.: 95432-KY-1

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