Ozone Gas Detectors: Rent or Buy
Ozone (O₃) is a highly reactive form of oxygen with a sharp, distinctive odor detectable at very low concentrations. In occupational settings, ozone is generated by UV light sources, arc welding, corona discharge equipment, photocopiers, laser printers, and ozone generators used for air or water treatment.
PICK HOW YOU NEED TO MONITOR
Detectors to Rent for Ozone
Personal monitors are worn in each worker's breathing zone and alarm on their exposure. Area monitors watch a fixed point, room or job site. Pick a style below, then compare every option in the table.
Top pick
COMPARE OPTIONS
Ozone detectors side by side
| Instrument | Monitoring | Detection method | Range | Resolution / lowest alarm | Gases at once | Sampling | Exposure averages | Battery run time | Intrinsically safe | Data logging | Starting at |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Single-Gas Personal Monitors Small clip-on detectors that read one gas in the worker's breathing zone and alarm at set levels. | |||||||||||
| PAC 8000 O3 by Drager | Personal | Electrochemical | 0 to 10 ppm | 0.01 ppm | 1 | Diffusion (no pump) | TWA on display and report | Up to 24 months | Yes | Yes | $115.00 / day |
| Portable Gas Analyzers Analyzers built around one target gas, often reading lower levels than a multi-gas safety detector. | |||||||||||
| AeroQual Series 500 | Area | Interchangeable sensor head — OZL gas-sensitive semiconductor | OZL (GSS, low range): 0 to 0.5 ppm | OZL: 0.001 ppm | 1 | — | — | Approximately 8 hours depending on sensor head | No | Yes | Buy used $1,000.00 |
| Ranger by AeroQualTop pick | Area | Swappable sensor heads — OZL gas-sensitive semiconductor | OZL: 0 to 0.5 ppm | OZL: 0.001 ppm | 1 | Internal pump | None | 24 hours for all-day monitoring | No | Yes | $115.00 / day |
| Tape-Based Gas Monitors Draw air across a chemically treated tape that changes color when the target gas is present. The tape cassette fitted decides which gases it reads. | |||||||||||
| SPM Flex by Honeywell Analytics | Area | Chemcassette tape-based colorimetric gas detection | 20 to 1000 ppb | Lowest alarm 25 ppb | 1 cassette | Internal pump (sample line up to 100 ft) | — | 6+ hours under typical conditions | No | Yes | $315.00 / day |
| Outdoor Monitoring Stations Weatherproof stations left on site for continuous perimeter or fenceline monitoring, with remote access to the data. | |||||||||||
| Aeroqual AQS1 Air Quality Monitor | Area | Gas-sensitive semiconductor (GSS) | 0 to 500 ppb | 0.1 ppb | — | Internal pump | 1 minute to 24 hours (user selectable) | No internal battery. Runs on AC power | No | Yes | Request a quote |
For instruments that take interchangeable sensors or cassettes, range and resolution are for the O₃ sensor or cassette. Run times are manufacturer estimates and vary with configuration and conditions. Not sure? Talk to our team.
WHERE EXPOSURE OCCURS
Risks: Where Ozone Exposure Occurs
Ozone (O₃) monitoring helps identify ozone in the air, which can be generated by electrical equipment, UV sterilization systems, welding, and water treatment processes. Use it in water and wastewater treatment plants, manufacturing areas with high-voltage equipment, copy and print rooms, and sanitation or sterilization operations. RAECO Rents gas monitors are bump tested or span calibrated on the day of shipment. Our team can help confirm the right monitor, alarms, and setup for the job, with fast turnaround and phone support so you can get reliable field readings quickly.
Water treatment & disinfection
Ozone generators used to treat water and wastewater.
Typical setup: A portable ozone monitor near generators, plus personal monitors for operators.
Welding
Gas-shielded arc welding produces ozone near the arc.
Typical setup: A personal ozone monitor in the welder's breathing zone.
UV & ozone equipment
UV lamps, corona discharge and ozone generators used for odor control and decontamination.
Typical setup: A portable ozone monitor to confirm safe re-entry.
Outdoor & ambient air
Ground-level ozone at job sites and property lines.
Typical setup: A perimeter air quality monitor with an ozone sensor.
EXPOSURE LIMITS
Ozone exposure limits
- TWA0.1 ppm (0.2 mg/m³)
- Ceiling0.1 ppm (0.2 mg/m³)
- IDLH5 ppm
- TWAHeavy work: 0.05 ppm (0.10 mg/m³); Moderate work: 0.08 ppm (0.16 mg/m³); Light work: 0.10 ppm (0.20 mg/m³) [1995]
TWA = 8-hour time-weighted average (NIOSH RELs are 10-hour). STEL = 15-minute short-term limit. IDLH = immediately dangerous to life or health. Updated October 8, 2026.
Ozone monitoring questions
All rental FAQs →Not sure which ozone detectors fit your job?
Tell us where the hazard is and how many workers need coverage. We'll recommend the instrument, range and alarm settings.
For educational purposes only. Exposure limits are summarized from the cited agencies; confirm monitoring requirements for your site with a qualified safety professional.