--- title: "RAE Gas Detectors | Aethair" description: "RAE Systems (Honeywell) portable gas detectors in the Aethair sensor catalog: 11 MultiRAE, miniRAE, ppbRAE, ultraRAE, and VRAE models, via Thiamis." url: https://aethair.io/sensors/rae-gas-detectors/ --- Sensors · Gas Detectors # RAE Gas Detectors RAE Systems (Honeywell) portable gas detectors. MultiRAE platforms are multi-gas monitors with 1 to 6 sensors, including an optional PID. The miniRAE, ppbRAE, and ultraRAE are handheld PID VOC monitors covering ppm to ppb levels (the ultraRAE adds benzene-specific measurement), and the VRAE is a five-gas monitor. [Schedule a call](https://calendly.com/d/ctdd-mkr-v9v/aethair-demo-website) [Build a Configuration](https://aethair.io/build/?params=co,co2,ch4,o2,h2s,so2,no,no2) At a glance **12** parameters **11** models [**Connects via Thiamis** RS-232 · ASCII](https://aethair.io/products/thiamis/) 4 standards limit what it measures - [Cal/OSHA PEL Cal/OSHA Permissible Exposure Limits (8 CCR §5155, Table AC-1)](https://aethair.io/standards/cal_osha_pel/) - [NIOSH REL NIOSH Recommended Exposure Limits (RELs)](https://aethair.io/standards/niosh_rel/) - [OSHA construction OSHA Construction Exposure Limits (29 CFR 1926.55)](https://aethair.io/standards/osha_construction_pel/) - [OSHA PEL OSHA Permissible Exposure Limits (PEL)](https://aethair.io/resources/osha-air-quality-standards-compliance/) Measures ## What RAE Gas Detectors Measure 12 parameters, each linked to its page: the sensors, units, and standards behind it. [Carbon Monoxide (CO) ppm](https://aethair.io/parameters/co/) [Carbon Dioxide (CO₂) ppm](https://aethair.io/parameters/co2/) [Methane (CH₄) ppm](https://aethair.io/parameters/ch4/) [Oxygen (O₂) %](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S) ppm](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂) ppm](https://aethair.io/parameters/so2/) [Nitric Oxide (NO) ppm](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂) ppm](https://aethair.io/parameters/no2/) [Ammonia (NH₃) ppm](https://aethair.io/parameters/nh3/) [VOC (Total) ppb / ppm / %](https://aethair.io/parameters/voc/) [Combustible (LEL) %](https://aethair.io/parameters/lel/) [Chlorine (Cl₂) ppm](https://aethair.io/parameters/cl2/) [Connects via **Thiamis**](https://aethair.io/products/thiamis/) Wired interface [RS-232 ASCII](https://aethair.io/products/thiamis/#port-rs232) Models ## RAE Gas Detectors Models 11 models, each with what it measures and the ranges its datasheet gives. | Model | Description | Measures & specs | | - | - | - | | **MultiRAE Lite** | Configurable 1-to-6-gas monitor (PGM-6208) with 25+ interchangeable sensors: combustible LEL, O2, toxic electrochemicals (CO, H2S, SO2, NO, NO2, NH3, Cl2), NDIR CO2, and optional PID for VOCs. Pumped or diffusion. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Carbon Dioxide (CO₂)](https://aethair.io/parameters/co2/) [Methane (CH₄)](https://aethair.io/parameters/ch4/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | | **MultiRAE** | Six-sensor multi-gas + PID monitor (PGM-6228). Full toxic/combustible/O2 menu plus a ppb-capable PID for VOCs and an optional NDIR CO2 channel. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Carbon Dioxide (CO₂)](https://aethair.io/parameters/co2/) [Methane (CH₄)](https://aethair.io/parameters/ch4/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | | **MultiRAE Pro** | Flagship MultiRAE (PGM-6248) for hazmat and emergency response: the full six-sensor multi-gas + PID panel, with the broadest sensor and wireless options of the family. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Carbon Dioxide (CO₂)](https://aethair.io/parameters/co2/) [Methane (CH₄)](https://aethair.io/parameters/ch4/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | | **miniRAE 3000** | Handheld broadband PID VOC monitor (PGM-7320), 0-15,000 ppm, 10.6 eV lamp, 200+ correction factors. Measures total VOCs only. Now sold as the miniRAE 3000+. | [VOC (Total)](https://aethair.io/parameters/voc/) | | **ppbRAE 3000** | Handheld PID VOC monitor (PGM-7340) with ppb sensitivity (1 ppb-10,000 ppm). Total VOCs only. Now sold as the ppbRAE 3000+. | [VOC (Total)](https://aethair.io/parameters/voc/) | | **ultraRAE 3000** | Compound-specific handheld PID (PGM-7360): benzene mode via a pre-filter separation tube (10 ppb-200 ppm) plus a broadband VOC mode to 10,000 ppm. Reading is published as total VOC. Now sold as the ultraRAE 3000+. | [VOC (Total)](https://aethair.io/parameters/voc/) | | **MultiRAE Plus** | Legacy previous-generation multi-gas + PID monitor (PGM50-5P): LEL, O2, and toxic gases (CO, H2S, SO2, NO, NO2, NH3, Cl2) with an optional PID; no NDIR CO2. Superseded by the current MultiRAE. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | | **MultiRAE IR** | Legacy MultiRAE variant (PGM54) adding an NDIR CO2 channel to the multi-gas + PID panel. Superseded by the current MultiRAE. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Carbon Dioxide (CO₂)](https://aethair.io/parameters/co2/) [Methane (CH₄)](https://aethair.io/parameters/ch4/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | | **ppbRAE 2000** | Legacy ppb-level PID VOC monitor (PGM7240); total VOCs only. Predecessor to the ppbRAE 3000. | [VOC (Total)](https://aethair.io/parameters/voc/) | | **miniRAE 2000** | Legacy broadband PID VOC monitor (PGM7600); total VOCs only. Predecessor to the miniRAE 3000. | [VOC (Total)](https://aethair.io/parameters/voc/) | | **VRAE** | Legacy pumped 1-to-5-gas monitor (PGM-7800/7840): combustible (LEL) + O2 + up to four toxic sensors (CO, H2S, SO2, NO, NO2, NH3, Cl2). No NDIR CO2; discontinued. | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Sulfur Dioxide (SO₂)](https://aethair.io/parameters/so2/) [Nitric Oxide (NO)](https://aethair.io/parameters/no/) [Nitrogen Dioxide (NO₂)](https://aethair.io/parameters/no2/) [Ammonia (NH₃)](https://aethair.io/parameters/nh3/) [VOC (Total)](https://aethair.io/parameters/voc/) [Combustible (LEL)](https://aethair.io/parameters/lel/) [Chlorine (Cl₂)](https://aethair.io/parameters/cl2/) | Standards ## Standards for What It Measures Standards that set limits on the parameters it reports. [Cal/OSHA PEL Cal/OSHA Permissible Exposure Limits (8 CCR §5155, Table AC-1) 8 of its parameters](https://aethair.io/standards/cal_osha_pel/) [NIOSH REL NIOSH Recommended Exposure Limits (RELs) 8 of its parameters](https://aethair.io/standards/niosh_rel/) [OSHA construction OSHA Construction Exposure Limits (29 CFR 1926.55) 8 of its parameters](https://aethair.io/standards/osha_construction_pel/) [OSHA PEL OSHA Permissible Exposure Limits (PEL) 8 of its parameters](https://aethair.io/resources/osha-air-quality-standards-compliance/) [ACGIH TLV ACGIH Threshold Limit Values (TLV) 6 of its parameters](https://aethair.io/standards/acgih_tlv/) [OSHA confined space Confined-Space Atmospheric Limits 4 of its parameters](https://aethair.io/standards/confined_space/) [LEED v5 LEED v5: Indoor Air Quality Performance (Operations and Maintenance) 4 of its parameters](https://aethair.io/standards/leed_v5/) [SCAQMD 1180 SCAQMD Rule 1180: refinery fenceline and community air monitoring 4 of its parameters](https://aethair.io/standards/scaqmd_1180/) [EPA NAAQS US EPA National Ambient Air Quality Standards (NAAQS) 3 of its parameters](https://aethair.io/standards/epa_naaqs/) [WELL v2 WELL Building Standard v2: Air 3 of its parameters](https://aethair.io/resources/well-building-standard-air-quality/) [WHO 2021 WHO Global Air Quality Guidelines 2021 3 of its parameters](https://aethair.io/standards/who_aqg_2021/) [EU 2024/2881 EU Ambient Air Quality Directive (EU) 2024/2881 2 of its parameters](https://aethair.io/standards/eu_aaqd_2024/) [RESET Air RESET Air: commercial interiors performance targets 2 of its parameters](https://aethair.io/standards/reset_air/) [EPA 258.23 EPA Landfill Explosive Gases Control (40 CFR 258.23) 1 of its parameters](https://aethair.io/standards/epa_landfill_methane/) [UBA CO₂ Indoor CO₂ Guideline (German UBA / Pettenkofer scale) 1 of its parameters](https://aethair.io/standards/uba_indoor_co2/) [ISO 23875 ISO 23875: air quality control systems for operator enclosures 1 of its parameters](https://aethair.io/standards/iso_23875/) [NYSDEC DER-10 NYSDEC DER-10 Community Air Monitoring Plan (CAMP) 1 of its parameters](https://aethair.io/standards/nysdec_der10/) Guidance that relies on it [BAAQMD Regulation 12, Rule 15: petroleum refining emissions tracking](https://aethair.io/standards/baaqmd_12_15/) [ANSI/ASHRAE Standard 62.1: ventilation for acceptable indoor air quality](https://aethair.io/standards/ashrae_62_1/) Solutions ## Where RAE Gas Detectors Are Used Solutions whose recommended configuration uses this instrument or whose standards it is built to, followed by solutions whose core panel it partly measures. ### [Occupational Safety & Industrial Hygiene](https://aethair.io/solutions/occupational-safety/) Worker exposure, confined space, and heat stress ### [Oil & Gas / Petrochemical](https://aethair.io/solutions/oil-gas/) Fence-line VOC, H₂S, and methane leak detection ### [Landfill, Biogas & Odor](https://aethair.io/solutions/landfill-biogas/) Methane, H₂S, and odor complaint response ### [Outdoor Monitoring](https://aethair.io/solutions/outdoor-monitoring/) Continuous outdoor air quality networks that sit alongside reference monitors ### [Indoor Air Quality](https://aethair.io/solutions/iaq-monitoring/) Offices, schools, homes, and public buildings ### [School Air Monitoring](https://aethair.io/solutions/education/) Classroom CO₂, particulates, and campus IAQ ### [HVAC & Building Management](https://aethair.io/solutions/hvac-building/) Monitor ventilation and filtration, with data for your BMS On the platform ## What RAE Gas Detectors Get From Aethair Connected through Thiamis, its readings arrive in the same Environet account as Aethair's own monitors. ### [Live data and alerts](https://aethair.io/platform/environet/) [Environet](https://aethair.io/platform/environet/) shows the instrument live and alerts the people you choose by email, SMS, and webhook, at the thresholds you set. [Noesis](https://aethair.io/platform/noesis/) sets up a dashboard, a report, or an alert from a plain-text request. ### [Compliance reports](https://aethair.io/platform/reports/) [Aethair Reports](https://aethair.io/platform/reports/) produces scheduled or on-demand reports from the instrument's readings, as a PDF or secure link. Templates cover Aethair Blue, WELL v2, cabin air (ISO 23875), and the CMS-2567 healthcare codebook (ASHRAE 170), or you can report against custom limits such as OSHA PELs, NAAQS, EPA guidance, or your own program limits. ### [Dashboards and the app](https://aethair.io/platform/dashboards/) Environet dashboards and the [Aethair App](https://aethair.io/platform/app/) show the instrument's readings just like any Aethair device. The occupant-facing [Aethair Dashboards](https://aethair.io/platform/dashboards/) status display is built around Aethair IAQ and Aethair PRO. Similar ## Other Gas Detectors ### [RKI Instruments](https://aethair.io/sensors/rki-instruments-gas-detectors/) [Gas Detectors](https://aethair.io/sensors/rki-instruments-gas-detectors/) [The RKI Instruments GX-6000 is a handheld sample-draw gas monitor that measures up to six gases at…](https://aethair.io/sensors/rki-instruments-gas-detectors/) ### [Trolex](https://aethair.io/sensors/trolex-gas-detectors/) [Gas Detectors](https://aethair.io/sensors/trolex-gas-detectors/) [The Trolex Sentro X (TX6310) is a fixed gas-detection platform for mining and heavy industry. One…](https://aethair.io/sensors/trolex-gas-detectors/) ### [TSI](https://aethair.io/sensors/tsi-gas-detectors/) [Gas Detectors](https://aethair.io/sensors/tsi-gas-detectors/) [TSI Gas Monitor GM460 handheld sample-draw multi-gas monitor, TSI's rebadge of the RKI Instruments…](https://aethair.io/sensors/tsi-gas-detectors/) Article Library ## Reading on What These Instruments Measure ### [OSHA Air Quality Standards 2026: PELs & 29 CFR 1910.1000](https://aethair.io/resources/osha-air-quality-standards-compliance/) OSHA air quality standards for indoor and outdoor work: permissible exposure limits, Table Z-1, 29 CFR 1910.1000, and the heat and wildfire smoke triggers. [All articles](https://aethair.io/resources/) Questions ## RAE Gas Detectors FAQ Which RAE models measure a full gas panel, and which measure only VOCs? The MultiRAE family (MultiRAE Lite, MultiRAE, MultiRAE Pro) and the legacy VRAE, MultiRAE Plus, and MultiRAE IR are configurable multi-gas instruments, and the integration reads whatever sensors are installed. The miniRAE, ppbRAE, and ultraRAE handhelds are single-detector PID monitors: they report total VOCs only, plus peak, low, STEL, and TWA statistics of that VOC reading. How does the integration know which gases a MultiRAE is fitted with? On each poll the driver issues an 'N' command that returns the list of installed sensor names (for example 'SO2 NO2 H2S CO VOC'), then reads their values in that order with the 'R' command. As a result, a MultiRAE or VRAE publishes exactly the sensors physically installed; the panel is not fixed in firmware. The single-detector PID handhelds skip this step and read one VOC value directly. What does the ultraRAE 3000 measure - benzene or VOCs? The ultraRAE 3000 is a compound-specific PID: in benzene mode a pre-filter separation tube isolates benzene (about 10 ppb-200 ppm), and it also has a broadband VOC mode to 10,000 ppm. The integration publishes the reading as total VOC. Why does a VRAE or MultiRAE Plus show a VOC reading even without a PID? The firmware maps several specialty electrochemical channels (hydrogen cyanide (HCN), phosphine (PH3), and ethylene oxide (EtO)), plus the combustible-by-volume (VOL) channel, onto the total-VOC parameter, because Aethair has no separate parameter for them. So a unit fitted with an HCN or PH3 sensor reports under VOC. Are the 2000-series handhelds, MultiRAE Plus/IR, and VRAE still sold? No. The 2000-series PID handhelds (miniRAE 2000, ppbRAE 2000), the previous-generation MultiRAE Plus and MultiRAE IR, and the VRAE five-gas monitor are discontinued; the current 3000-series handhelds are now sold as the '3000+'. They remain in the driver for installed-base support. Sources: [sps-support.honeywell.com](https://sps-support.honeywell.com/s/article/MultiRAE-vs-MiniRAE-3000) · [automation.honeywell.com](https://automation.honeywell.com/us/en/products/sensing-solutions/gas-and-flame-detection/portables/multi-gas/multirae-lite-pumped-multi-gas-detector) · [automation.honeywell.com](https://automation.honeywell.com/us/en/products/sensing-solutions/gas-and-flame-detection/portables/photoionization-detectors-pid/minirae-3000-portable-handheld-voc-monitor)