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Used Monitors
Ozone Monitors are sold to us from customers who have upgraded, or had only a short-term need for an ozone monitor. We also sell units that were in our rental line. All ozone monitors have been tested, repaired as needed, and come with a fresh calibration certificate along with a warranty.
Our ozone monitors move very fast. If you are looking for something specific please contact our office, we always have units in testing/repair/calibration on the shelf that have not yet made the website.
| Product | Unit Features | Price |
|---|---|---|
 454H Ozone Analyzer Used
|
-No Need for UV Filters -Temp. & Pressure Compensation -Analog & RS485/RS232 Outputs -0.5 to 5 LPM Flow |
$3,500.00
|
 API 465H (Used)
|
Used Teledyne API-465M Ozone Analyzer. 10,000 ppm range, rack-mount unit with integrated sample pump.
Currently in-stock and ready for shipment. |
$3,500.00
|
 D16 PortaSens Monitor (Used)
|
Used D16 Ozone Detector. Sells with everything shipped with a new C16. We have this sensor ready for operation with a working ozone sensor we have calibrated and verified to read ozone accurately. Used Like-New |
$1,250.00
|
 IN-USA Mini-Hicon Ozone Analyzer (Used)
|
Used IN-USA Mini-Hicon ozone analyzer for sale. Measures ozone from 0-150 g/m3, can measure the output of ozone generator. This unit has been refurbished as needed, tested and will ship with updated calibration certificate.
Currently in-stock and ready for shipment. |
$3,000.00
|
 LC-400plus Ozone Monitor Used
|
Used LC 400 plus Ozone Monitor Condition: Used-Like New SN: 516 Calibrated on 4/15/2026 Manufacturer: Wedeco |
$3,000.00
|
 Used AquaPro Multi-Input Intelligent Process Analyzer
|
-Six cable ports for standard conduit and cordgrip fittings -NEMA 4X Enclosure for indoor/outdoor use -Full-featured PID function for process control -Digital protocol options for remote measurement, calibration, setup and diagnostics: MODBUS, DeviceNet |
$1,200.00
|
 Used OS-6 Ozone Monitor
|
The OS-6 is an industrial grade ozone controller and monitor. The OS-6 design has been optimized for accuracy, ease of installation, setup and operation.
Currently in-stock and ready for shipment. |
$800.00
|
 Used Teledyne 465L with Packaging
|
Low range UV Absorption based Ozone Analyzer for low range ozone detection with superb accuracy.
Currently in-stock and ready for shipment. |
$4,500.00
|
 UV-106-M Ozone Analyzer - Used
|
Used Medium range precision UV Ozone Analyzer. Range 0-1,000 ppm, with resolution of 0.01 ppm resolution allows for medium range ozone measurement up to 1,000 ppm with great accuracy in a compact, easy to use package.
Currently in-stock and ready for shipment. |
$4,700.00
|
 UV-106L Ozone Analyzer - Used
|
Used low range precision UV Ozone Analyzer. Range 0-100 ppm, with resolution of 0.0001 ppm (0.1 ppb) resolution allows for low range ozone measurement with great accuracy in a compact, easy to use package.
Currently in-stock and ready for shipment. |
$4,600.00
|
454H Ozone Analyzer Used
Unit Features
-No Need for UV Filters
-Temp. & Pressure Compensation
-Analog & RS485/RS232 Outputs
-0.5 to 5 LPM Flow
API 465H (Used)
Unit Features
Used Teledyne API-465M Ozone Analyzer. 10,000 ppm range, rack-mount unit with integrated sample pump.
Currently in-stock and ready for shipment.
D16 PortaSens Monitor (Used)
Unit Features
Used D16 Ozone Detector. Sells with everything shipped with a new C16. We have this sensor ready for operation with a working ozone sensor we have calibrated and verified to read ozone accurately.
Used Like-New
IN-USA Mini-Hicon Ozone Analyzer (Used)
Unit Features
Used IN-USA Mini-Hicon ozone analyzer for sale. Measures ozone from 0-150 g/m3, can measure the output of ozone generator. This unit has been refurbished as needed, tested and will ship with updated calibration certificate.
Currently in-stock and ready for shipment.
LC-400plus Ozone Monitor Used
Unit Features
Used LC 400 plus Ozone Monitor
Condition: Used-Like New
SN: 516
Calibrated on 4/15/2026
Manufacturer: Wedeco
Used AquaPro Multi-Input Intelligent Process Analyzer
Unit Features
-Six cable ports for standard conduit and cordgrip fittings
-NEMA 4X Enclosure for indoor/outdoor use
-Full-featured PID function for process control
-Digital protocol options for remote measurement, calibration, setup and diagnostics: MODBUS, DeviceNet
Used OS-6 Ozone Monitor
Unit Features
The OS-6 is an industrial grade ozone controller and monitor. The OS-6 design has been optimized for accuracy, ease of installation, setup and operation.
Currently in-stock and ready for shipment.
Used Teledyne 465L with Packaging
Unit Features
Low range UV Absorption based Ozone Analyzer for low range ozone detection with superb accuracy.
Currently in-stock and ready for shipment.
UV-106-M Ozone Analyzer - Used
Unit Features
Used Medium range precision UV Ozone Analyzer. Range 0-1,000 ppm, with resolution of 0.01 ppm resolution allows for medium range ozone measurement up to 1,000 ppm with great accuracy in a compact, easy to use package.
Currently in-stock and ready for shipment.
UV-106L Ozone Analyzer - Used
Unit Features
Used low range precision UV Ozone Analyzer. Range 0-100 ppm, with resolution of 0.0001 ppm (0.1 ppb) resolution allows for low range ozone measurement with great accuracy in a compact, easy to use package.
Currently in-stock and ready for shipment.