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Online Dissolve Ozone Tester for Factory Use

The online dissolved ozone tester can be installed to test dissolved ozone in water and show its concentration instantly.

  • DOZ3000
  • 10
  • 1 year
  • T/T, Alipay, West Union, Paypal in advance


When using ozone equipment for water treatment, it is necessary to monitor the ozone concentration in the water to regulate the ozone output in time.

This dial-mounted ozone on-line inspection device meets the requirements of real-time display. At the same time, it is easy to install, easy to operate and easy to maintain.


  • Small size, save place

  • Digital display panel, intuitive and convenient

  • High accuracy, deviation value is small

  • Two optional measuring range and resolution, adapt to different working environment

  • Easy to operate, very simple

  • Easy to install, save time and worry





Dissolved Ozone Range 0.00-2.00 mg/L or 0.00-20.00 mg/L
Resolution 0.001 mg/L or 0.01 mg/L
Accuracy 1% ± 1 LSD
Temperature Range -10.00-110.0 °C
Resolution 0.1 °C
Accuracy ±0.3 °C
Input 22 kΩ/PT1000


Automatic -5.0-100 °C
Current output Range 4-20 mA (adjustable)
Accuracy 1% FS
Load <500 Ω
On off control Control method 2SPST relay
Output load 2.5 A/230 V AC
Data interface RS485 RS485 modbus protocol
Other parameters
Working power 85-260 V AC or 12-36 V DC
Working temperature 0-60 °C
Working humidity <90%
Levels of protection IP65
Installation Panel-mounted
Dimension(H*W*D) 108*108*156 mm
Hole size 94.5*94.5 mm
Weight 0.6 kg






Q: Are you manufacturer or trader?

A: We're professional manufacturer focus on ozone equipment, located in Baiyun District, Guangzhou, China. Welcome to visit us.

Q: What's the warranty?

A: Warranty is 12 months, life time technical support. If any quality problem occur during this period, which due to our responsibility, we'll take care of it, or send more new spare parts to replace.

Q: What'the MOQ?

A: One piece each model.

Q: Can I buy a sample for test purpose, then if it's ok, I'll buy more?

A: Yes, you can.

Q: Can we print our logo and have our own package

A: Yes, you can, OEM&ODM orders are acceptable.

Q: Is there any discount?

A: Of course, more quantities, more discount.

Q: Can I get a catalog?

A: Yes, you can download on our website.

Q: How is the quality?

A: All the materials used for our products are strictly chosen by QA, finishings are checked carefully by QC. Every machine will be strictly tested and aged for several days before delivery.

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Guangzhou Qili Environmental Equipment Co., Ltd.
A high-tech enterprise dedicated to research, development, design, production and sales of ozone equipment. 


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