--- title: "Trolex Particulate & Dust Monitors | Aethair" description: "Trolex Air XD, XD ONE, and Air XS real-time dust and silica monitors in the Aethair sensor catalog: 4 models for mining and industry, via Thiamis." url: https://aethair.io/sensors/trolex-particulate-dust-monitors/ --- Sensors · Particulate & Dust Monitors # Trolex Particulate & Dust Monitors Trolex real-time dust and silica monitors for harsh mining and industrial environments: the Air XD fixed optical dust monitor and XD ONE wearable (PM1/PM2.5/PM4.25/PM10 + TSP), and the Air XS respirable crystalline silica (RCS) monitor. [Schedule a call](https://calendly.com/d/ctdd-mkr-v9v/aethair-demo-website) [Build a Configuration](https://aethair.io/build/?params=pm1,pm2_5,pm4,pm10,pm_total,silica) At a glance **6** parameters **4** models [**Connects via Thiamis** RS-485 · Modbus RTU](https://aethair.io/products/thiamis/) 4 standards limit what it measures - [EU 2024/2881 EU Ambient Air Quality Directive (EU) 2024/2881](https://aethair.io/standards/eu_aaqd_2024/) - [LEED v5 LEED v5: Indoor Air Quality Performance (Operations and Maintenance)](https://aethair.io/standards/leed_v5/) - [SCAQMD 1180 SCAQMD Rule 1180: refinery fenceline and community air monitoring](https://aethair.io/standards/scaqmd_1180/) - [EPA NAAQS US EPA National Ambient Air Quality Standards (NAAQS)](https://aethair.io/standards/epa_naaqs/) Measures ## What Trolex Particulate & Dust Monitors Measure 6 parameters, each linked to its page: the sensors, units, and standards behind it. [PM1 µg/m³](https://aethair.io/parameters/pm1/) [PM2.5 µg/m³](https://aethair.io/parameters/pm2_5/) [PM4 (Respirable) µg/m³](https://aethair.io/parameters/pm4/) [PM10 µg/m³](https://aethair.io/parameters/pm10/) [Total PM / Mass Conc. µg/m³](https://aethair.io/parameters/pm_total/) [Respirable Crystalline Silica µg/m³](https://aethair.io/parameters/silica/) [Connects via **Thiamis**](https://aethair.io/products/thiamis/) Wired interface [RS-485 Modbus RTU multi-drop](https://aethair.io/products/thiamis/#port-rs485 "Addressable multi-drop bus: several units share one connector") Models ## Trolex Particulate & Dust Monitors Models 4 models, each with what it measures and the ranges its datasheet gives. | Model | Description | Measures & specs | | - | - | - | | **Air XD (TX8005)** | ATEX/IECEx Group I certified fixed real-time optical dust monitor (light-scattering OPC, 0.35–40 µm, up to 10,000 samples/s) for underground mining and hazardous areas. Reports four user-assignable size fractions (PM A/B/C/D, default PM1, PM2.5, PM4.25, PM10) plus TSP from a single sample, each live and as STEL (default 15-min) and TWA (default 8-h) averages over RS485 Modbus RTU. | [PM1](https://aethair.io/parameters/pm1/) [PM2.5](https://aethair.io/parameters/pm2_5/) [PM4 (Respirable)](https://aethair.io/parameters/pm4/) [PM10](https://aethair.io/parameters/pm10/) [Total PM / Mass Conc.](https://aethair.io/parameters/pm_total/) | | **Air XD (TX8015)** | General-industrial variant of the Air XD optical dust monitor, with the same real-time PM1/PM2.5/PM4.25/PM10 + TSP measurement and RS485 Modbus register map as the TX8005, without the Group I hazardous-area certification. | [PM1](https://aethair.io/parameters/pm1/) [PM2.5](https://aethair.io/parameters/pm2_5/) [PM4 (Respirable)](https://aethair.io/parameters/pm4/) [PM10](https://aethair.io/parameters/pm10/) [Total PM / Mass Conc.](https://aethair.io/parameters/pm_total/) | | **XD ONE (TX8060)** | Wearable/portable real-time respirable dust monitor built on the same light-scattering OPC (0.35–40 µm) as the Air XD. Reports PM1/PM2.5/PM4.25/PM10 plus TSP with on-device STEL/TWA audio-visual alarms. Battery-powered (16+ h) and streams to Trolex BreatheLITE software over USB/Bluetooth rather than the RS485 Modbus bus used by the fixed Air XD/XS. | [PM1](https://aethair.io/parameters/pm1/) [PM2.5](https://aethair.io/parameters/pm2_5/) [PM4 (Respirable)](https://aethair.io/parameters/pm4/) [PM10](https://aethair.io/parameters/pm10/) [Total PM / Mass Conc.](https://aethair.io/parameters/pm_total/) | | **Air XS (TX8100)** | Fixed real-time respirable crystalline silica (RCS) monitor using patented Optical Refraction Technology (ORT) with a light-scattering photometer to distinguish silica within complex dust. Reports RCS mass concentration with 15-minute, 1-, 4-, 8-, and 12-hour rolling averages over RS485 Modbus RTU; the real-time reading is indicative for trending and alarms, not a regulatory reference method. | [Respirable Crystalline Silica](https://aethair.io/parameters/silica/) | Standards ## Standards for What It Measures Standards that set limits on the parameters it reports. [EU 2024/2881 EU Ambient Air Quality Directive (EU) 2024/2881 2 of its parameters](https://aethair.io/standards/eu_aaqd_2024/) [LEED v5 LEED v5: Indoor Air Quality Performance (Operations and Maintenance) 2 of its parameters](https://aethair.io/standards/leed_v5/) [SCAQMD 1180 SCAQMD Rule 1180: refinery fenceline and community air monitoring 2 of its parameters](https://aethair.io/standards/scaqmd_1180/) [EPA NAAQS US EPA National Ambient Air Quality Standards (NAAQS) 2 of its parameters](https://aethair.io/standards/epa_naaqs/) [WELL v2 WELL Building Standard v2: Air 2 of its parameters](https://aethair.io/resources/well-building-standard-air-quality/) [WHO 2021 WHO Global Air Quality Guidelines 2021 2 of its parameters](https://aethair.io/standards/who_aqg_2021/) [Cal/OSHA 5141.1 Cal/OSHA Protection from Wildfire Smoke (8 CCR §5141.1) 1 of its parameters](https://aethair.io/standards/cal_osha_5141_1/) [ISO 23875 ISO 23875: air quality control systems for operator enclosures 1 of its parameters](https://aethair.io/standards/iso_23875/) [MSHA silica MSHA Respirable Crystalline Silica (30 CFR Part 60) 1 of its parameters](https://aethair.io/standards/msha_silica/) [NYSDEC DER-10 NYSDEC DER-10 Community Air Monitoring Plan (CAMP) 1 of its parameters](https://aethair.io/standards/nysdec_der10/) [OSHA silica OSHA Respirable Crystalline Silica 1 of its parameters](https://aethair.io/standards/osha_silica/) [RESET Air RESET Air: commercial interiors performance targets 1 of its parameters](https://aethair.io/standards/reset_air/) [SCAQMD 1466 SCAQMD Rule 1466: particulate emissions from soils with toxic air contaminants 1 of its parameters](https://aethair.io/standards/scaqmd_1466/) [EPA AQI US EPA Air Quality Index (AQI): PM2.5 breakpoints (2024) 1 of its parameters](https://aethair.io/standards/epa_aqi/) Solutions ## Where Trolex Particulate & Dust Monitors 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. ### [Cabin Air Quality](https://aethair.io/solutions/cabin-air/) Respirable dust, gases, and blast monitoring ### [Perimeter Monitoring](https://aethair.io/solutions/perimeter-monitoring/) Site boundary dust, silica, and noise compliance ### [Outdoor Monitoring](https://aethair.io/solutions/outdoor-monitoring/) Continuous outdoor air quality networks that sit alongside reference monitors ### [Wildfire Air Monitoring](https://aethair.io/solutions/wildfires/) Smoke plumes, black carbon, and community exposure ### [Healthcare Air Monitoring](https://aethair.io/solutions/healthcare/) Clinical air quality, pressurization, and patient safety ### [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 On the platform ## What Trolex Particulate & Dust Monitors 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 Particulate & Dust Monitors ### [Met One](https://aethair.io/sensors/met-one-particulate-dust-monitors/) [Particulate & Dust Monitors](https://aethair.io/sensors/met-one-particulate-dust-monitors/) [Met One (Acoem) real-time particulate monitors. The E-BAM is a portable beta-attenuation mass…](https://aethair.io/sensors/met-one-particulate-dust-monitors/) ### [Particles Plus](https://aethair.io/sensors/particles-plus-particulate-dust-monitors/) [Particulate & Dust Monitors](https://aethair.io/sensors/particles-plus-particulate-dust-monitors/) [Particles Plus 5000-series remote (fixed-install) and 7000-series benchtop instruments are laser…](https://aethair.io/sensors/particles-plus-particulate-dust-monitors/) ### [Thermo Scientific](https://aethair.io/sensors/thermo-scientific-particulate-dust-monitors/) [Particulate & Dust Monitors](https://aethair.io/sensors/thermo-scientific-particulate-dust-monitors/) [This integration covers Thermo Scientific particulate monitors, led by the Partisol iSeries…](https://aethair.io/sensors/thermo-scientific-particulate-dust-monitors/) ### [TSI](https://aethair.io/sensors/tsi-particulate-dust-monitors/) [Particulate & Dust Monitors](https://aethair.io/sensors/tsi-particulate-dust-monitors/) [TSI DustTrak real-time light-scattering laser photometers for aerosol/dust mass-concentration…](https://aethair.io/sensors/tsi-particulate-dust-monitors/) Article Library ## Reading on What These Instruments Measure ### [Fenceline Air Quality Monitoring: Equipment and Approaches](https://aethair.io/resources/fenceline-air-quality-monitoring/) Compare fenceline air quality monitoring approaches: standalone stations, pelican-case kits, and connected 4G sensor networks. ### [PM2.5 Exposure Limits & Monitoring: OSHA and NAAQS Standards](https://aethair.io/resources/pm25-monitoring-health-regulatory-guide/) What are the OSHA and NAAQS exposure limits for PM2.5? Fine particulate thresholds explained, plus how continuous monitoring keeps workplaces compliant. [All articles](https://aethair.io/resources/) Questions ## Trolex Particulate & Dust Monitors FAQ What does the Air XD measure, and what are the PM A/B/C/D readings? The Air XD (TX8005 Group I mining unit; TX8015 industrial variant) is a light-scattering optical particle counter that sizes particles from 0.35 to 40 µm at up to 10,000 samples per second. Over Modbus it reports five mass fractions: four user-assignable size channels (PM A/B/C/D, default PM1, PM2.5, PM4.25, and PM10) plus Total Suspended Particulates (TSP). Each is available live and as STEL (default 15-minute) and TWA (default 8-hour) rolling averages. How is the XD ONE different from the Air XD? The XD ONE (TX8060/TX8061) is the wearable, battery-powered version of the same optical dust sensor, measuring the same PM1/PM2.5/PM4.25/PM10 fractions plus TSP with on-device STEL/TWA alarms. Unlike the fixed Air XD it has no RS485 Modbus interface. It streams to Trolex BreatheLITE software over USB/Bluetooth, so it needs a separate integration path. How does the Air XS detect crystalline silica in real time? The Air XS uses patented Optical Refraction Technology (ORT) together with a light-scattering photometer to distinguish respirable crystalline silica within a mixed dust cloud, reporting RCS mass concentration continuously with 15-minute, 1-, 4-, 8-, and 12-hour averages. Trolex states the real-time reading is indicative for trending and alarms and is not a substitute for the gravimetric laboratory reference method used for regulatory compliance. How does the integration tell the Air XD and Air XS apart? Both connect over RS485 Modbus RTU and share one Thiamis driver. The driver polls the Modbus ID register, auto-selects the profile (ID 8005 for the Air XD, 8100 for the Air XS), then reads that unit's data registers each interval. The same driver also serves the Trolex Sentro X gas detector when it is present on the bus. Sources: [trolex.com](https://trolex.com/product/air-xd/) · [trolex.com](https://trolex.com/product/xd-one/) · [trolex.com](https://trolex.com/product/air-xs/)