--- title: "RKI Instruments GX6000 Gas Detectors | Aethair" description: "RKI Instruments GX-6000 handheld six-gas sample-draw monitor with dual smart PID/IR/toxic channels, in the Aethair sensor catalog via Thiamis." url: https://aethair.io/sensors/rki-instruments-gas-detectors/ --- Sensors · Gas Detectors # RKI Instruments GX6000 Gas Detectors The RKI Instruments GX-6000 is a handheld sample-draw gas monitor that measures up to six gases at once. Four channels are fixed for confined-space gases (combustible/CH4, O2, CO, H2S). Two auto-recognizing smart channels each accept a PID (VOC library of more than 600 compounds, with dual-PID and benzene-specific options), an IR sensor (CO2/CH4/hydrocarbons), or a super-toxic electrochemical sensor (NH3, Cl2, HCN, NO2, PH3, SO2). Internal pump (0.45 LPM), IP-67, intrinsically safe. Sold by TSI as the now-discontinued GM460. [Schedule a call](https://calendly.com/d/ctdd-mkr-v9v/aethair-demo-website) [Build a Configuration](https://aethair.io/build/?params=co,ch4,o2,h2s,analog_input) At a glance **5** parameters **1** model [**Connects via Thiamis** USB · ASCII](https://aethair.io/products/thiamis/) 4 standards limit what it measures - [OSHA confined space Confined-Space Atmospheric Limits](https://aethair.io/standards/confined_space/) - [ACGIH TLV ACGIH Threshold Limit Values (TLV)](https://aethair.io/standards/acgih_tlv/) - [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/) Measures ## What the RKI Instruments GX6000 Measures 5 parameters, each linked to its page: the sensors, units, and standards behind it. [Carbon Monoxide (CO) ppm](https://aethair.io/parameters/co/) [Methane (CH₄) %LEL](https://aethair.io/parameters/ch4/) [Oxygen (O₂) %](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S) ppm](https://aethair.io/parameters/h2s/) [Analog Input (generic) Ch1, Ch2](https://aethair.io/parameters/analog_input/) [Connects via **Thiamis**](https://aethair.io/products/thiamis/) Wired interface [USB ASCII](https://aethair.io/products/thiamis/#port-usb) Models ## RKI Instruments GX6000 Models 1 model, with what it measures and the ranges from its datasheet. | Model | Description | Measures & specs | | - | - | - | | **GX6000** | Handheld sample-draw 6-gas monitor: four fixed channels (combustible/CH4 %LEL, O2, CO, H2S) plus two interchangeable smart channels (PID / IR / super-toxic). Uniquely supports two PID sensors at once (broad 10.6 eV + benzene-specific 10.0 eV) with a >600-VOC library; internal pump, IP-67, intrinsically safe (ATEX/IECEx/cCSAus). | [Carbon Monoxide (CO)](https://aethair.io/parameters/co/) [Methane (CH₄)](https://aethair.io/parameters/ch4/) [Oxygen (O₂)](https://aethair.io/parameters/o2/) [Hydrogen Sulfide (H₂S)](https://aethair.io/parameters/h2s/) [Analog Input (generic) Ch1, Ch2](https://aethair.io/parameters/analog_input/) | Standards ## Standards for What It Measures Standards that set limits on the parameters it reports. [OSHA confined space Confined-Space Atmospheric Limits 3 of its parameters](https://aethair.io/standards/confined_space/) [ACGIH TLV ACGIH Threshold Limit Values (TLV) 2 of its parameters](https://aethair.io/standards/acgih_tlv/) [Cal/OSHA PEL Cal/OSHA Permissible Exposure Limits (8 CCR §5155, Table AC-1) 2 of its parameters](https://aethair.io/standards/cal_osha_pel/) [NIOSH REL NIOSH Recommended Exposure Limits (RELs) 2 of its parameters](https://aethair.io/standards/niosh_rel/) [OSHA construction OSHA Construction Exposure Limits (29 CFR 1926.55) 2 of its parameters](https://aethair.io/standards/osha_construction_pel/) [OSHA PEL OSHA Permissible Exposure Limits (PEL) 2 of its parameters](https://aethair.io/resources/osha-air-quality-standards-compliance/) [EPA 258.23 EPA Landfill Explosive Gases Control (40 CFR 258.23) 1 of its parameters](https://aethair.io/standards/epa_landfill_methane/) [LEED v5 LEED v5: Indoor Air Quality Performance (Operations and Maintenance) 1 of its parameters](https://aethair.io/standards/leed_v5/) [SCAQMD 1180 SCAQMD Rule 1180: refinery fenceline and community air monitoring 1 of its parameters](https://aethair.io/standards/scaqmd_1180/) [EPA NAAQS US EPA National Ambient Air Quality Standards (NAAQS) 1 of its parameters](https://aethair.io/standards/epa_naaqs/) [WELL v2 WELL Building Standard v2: Air 1 of its parameters](https://aethair.io/resources/well-building-standard-air-quality/) [WHO 2021 WHO Global Air Quality Guidelines 2021 1 of its parameters](https://aethair.io/standards/who_aqg_2021/) Guidance that relies on it [BAAQMD Regulation 12, Rule 15: petroleum refining emissions tracking](https://aethair.io/standards/baaqmd_12_15/) Solutions ## Where the RKI Instruments GX6000 Is 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 On the platform ## What the RKI Instruments GX6000 Gets 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 ### [RAE](https://aethair.io/sensors/rae-gas-detectors/) [Gas Detectors](https://aethair.io/sensors/rae-gas-detectors/) [RAE Systems (Honeywell) portable gas detectors. MultiRAE platforms are multi-gas monitors with 1 to…](https://aethair.io/sensors/rae-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/) Questions ## RKI Instruments GX6000 FAQ What gases does the GX-6000 measure? Up to six simultaneously. Four channels are fixed for confined-space entry: combustible gas/methane (catalytic, %LEL), oxygen (%vol), carbon monoxide (ppm), and hydrogen sulfide (ppm). Two further smart slots each accept a PID (VOC), an infrared sensor (CO2, methane, or hydrocarbons), or a super-toxic electrochemical sensor (NH3, Cl2, HCN, NO2, PH3, SO2). What makes the GX-6000's PID unusual? It can hold two PID sensors at once (an industry first), for example a broad-range 10.6 eV lamp for general VOCs alongside a benzene-specific 10.0 eV lamp, so you get general VOC detection and targeted benzene analysis without swapping sensors. An 11.7 eV lamp is also available, and the VOC library holds over 600 compounds. How are the two smart channels represented in the data? As two generic analog channels (Ch1 and Ch2). Each smart slot auto-recognizes whichever sensor is fitted, but the value is a plain reading that depends on that sensor, so the integration ingests it generically rather than as a fixed gas. The four confined-space gases (combustible/CH4, O2, CO, H2S) are always reported by name. Is the TSI GM460 the same instrument? Yes. The GM460 was TSI's rebadged version of the GX-6000 (the same six-channel platform and sensor options), now discontinued by TSI. The Thiamis driver reads both and auto-detects which one is connected. How does the integration connect to the monitor? Over an RS-232 serial link (921600 baud, 8 data bits, odd parity); the driver polls the instrument each interval and parses the reply. The sample-draw pump runs at 0.45 LPM. Battery voltage is carried in the protocol but is not surfaced as a measured parameter. Sources: [www.rkiinstruments.com](https://www.rkiinstruments.com/product/gx-6000-gas-detector/) · [www.rkiinstruments.com](https://www.rkiinstruments.com/app/uploads/2025/09/gx6000.pdf)