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Brand: Honeywell
Honeywell GasAlertMicro 5 Series Portable Multi-Gas Detector
Description
Honeywell GasAlertMicro 5 series: five-gas portable detector in three versions
The GasAlertMicro 5 is a compact portable multi-gas detector from Honeywell BW Technologies. It can display up to five atmospheric hazards at the same time. The datasheet describes three versions of the series: the standard GasAlertMicro 5 with electrochemical and catalytic sensors, the GasAlertMicro 5 PID with a photoionisation detector for volatile organic compounds, and the GasAlertMicro 5 IR with an infrared sensor for carbon dioxide. The yellow housing is a familiar sight on confined-space entry teams worldwide. Seven Star LLC supplies these detectors in Oman and the GCC as an independent supplier in Muscat.
Each unit is configured at the factory. Because of board and sensor configuration, the three versions are not interchangeable; a PID sensor cannot be fitted to an IR-configured unit, for example.
GasAlertMicro 5 model differences
| Model | Gases detected | Sensors | Typical battery life |
|---|---|---|---|
| GasAlertMicro 5 | H2S, CO, O2, SO2, PH3, NH3, NO2, HCN, Cl2, ClO2, O3 and combustibles (LEL) | Plug-in electrochemical cells (toxic and oxygen); catalytic (LEL) | About 20 hours |
| GasAlertMicro 5 PID | Toxic, oxygen and LEL gases as listed, plus VOCs by PID | Electrochemical, catalytic, plus 10.6 eV PID lamp for VOCs | About 15 hours |
| GasAlertMicro 5 IR | H2S, CO, O2, SO2, NH3, O3, combustibles (LEL) and CO2 | Electrochemical, catalytic, plus infrared sensor for CO2 | About 15 hours |
Battery life is based on a five-gas instrument in diffusion mode at 20 °C; other configurations and conditions change it.
GasAlertMicro 5 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Honeywell BW Technologies / GasAlertMicro 5, GasAlertMicro 5 PID, GasAlertMicro 5 IR |
| Size / weight | 14.5 × 7.4 × 3.8 cm (5.7 × 2.9 × 1.5 in); 370 g (13.1 oz) |
| Operating temperature | –20 to +50 °C; PID model –10 to +40 °C |
| Alarms | Visual alarm bars, vibrating, audible 95 dB; low, high, STEL, TWA and over-limit |
| Pump | Optional integral motorised pump; sampling from up to 20 m (66 ft) |
| Ingress protection | IP 65/66 |
| Power | AA alkaline cells or hot-swappable rechargeable battery pack |
| Self-test | On start-up: sensor integrity, circuitry, battery status and audible/visual alarms |
| Languages | English, French, German, Spanish and Portuguese |
| Approvals listed | Class I Div 1 Groups A-D; ATEX II 1 G Ex ia IIC T4 Ga (IR model: II 2 G Ex d ia IIC T4); IECEx Ex ia IIC T4 Ga; ABS for toxic and PID models |
| Warranty | Two years including sensors; one year for NH3, Cl2, O3, ClO2 and the PID lamp |
Temperature codes depend on the batteries installed, so check the owner’s manual for the correct combination.
Measuring ranges available on the series
| Gas | Default range | Resolution |
|---|---|---|
| H2S | 0 to 500 ppm | 1.0 ppm (0.1 ppm high resolution) |
| CO | 0 to 999 ppm | 1.0 ppm |
| TwinTox (H2S / CO) | 0 to 500 ppm | 1.0 ppm |
| O2 | 0 to 30.0 % | 0.1 % |
| SO2 | 0 to 150 ppm | 1.0 ppm (0.1 ppm high resolution) |
| PH3 | 0 to 5.0 ppm | 1.0 ppm (0.1 ppm high resolution) |
| NH3 | 0 to 100 ppm | 1.0 ppm (0.1 ppm high resolution) |
| NO2 | 0 to 99.9 ppm | 1.0 ppm (0.1 ppm high resolution) |
| HCN | 0 to 30.0 ppm | 1.0 ppm (0.1 ppm high resolution) |
| Cl2 | 0 to 50.0 ppm | 1.0 ppm (0.1 ppm high resolution) |
| ClO2 / O3 | 0 to 1.0 ppm | 0.1 ppm (0.01 ppm high resolution) |
| PID (VOCs) | 0 to 1,000 ppm | 1 ppm |
| IR (CO2) | 0 to 5.0 % v/v | 0.01 % |
| Combustible gases | 0 to 100 % LEL or 0 to 5.0 % v/v methane | 1 % LEL; 0.1 % v/v |
Alarm set points are user adjustable and are shown at start-up.
Using the detector in the field: diffusion or pumped
The base instrument works by diffusion, with gas reaching the sensors through the filter window on the front. An optional integral motorised pump turns it into a sampling instrument, which allows testing a confined space from outside the entry point with a probe and tubing, up to 20 m (66 ft) away according to the datasheet. The Generation 2 pump has a visible, replaceable filter so the operator can see whether dust or water is accumulating. The datasheet also notes that both diffusion and pumped versions are compatible with the MicroDock II automatic bump test and calibration system, which saves time before each shift.
Selecting the GasAlertMicro 5: gas list and options
- Hazard list. Start from the work permit. The common confined-space set is LEL, O2, CO and H2S, and the fifth channel can be a second toxic gas, a PID or CO2.
- Toxic variants. The TwinTox sensor reads H2S and CO on one cell, which frees a position for another gas.
- PID or IR version. Choose the PID unit when hydrocarbon vapour such as fuel or solvent is the concern; choose the IR version where CO2 build-up is expected, for example in fermentation or refrigeration areas.
- Pump option. Required when sampling from outside the space; state the requirement when ordering.
- Power. Alkaline AA cells or a hot-swappable rechargeable pack; the latter allows a fresh pack to be fitted in the field.
- Accessories. Integral pump, confined-space kit, belt holster, collapsible sampling probe and battery charger are listed.
Calibration and maintenance routine
- Bump test the instrument before each day of use, and calibrate according to your site procedure; the instrument has an automatic calibration procedure and a calibration due lockout option.
- User options include a daily bump test reminder, passcode protection to prevent unauthorised changes, and user-settable calibration gas levels.
- Inspect the filter window regularly and replace it when contaminated, particularly on the pumped model.
- Observe the shorter life and warranty of ammonia, chlorine, ozone, chlorine dioxide and PID lamp components, which carry one-year warranties.
- Use a MicroDock II station if available to log results and keep records.
Typical applications in Oman and the GCC
The datasheet (a 2010 issue, so confirm current options) lists confined-space entry, wastewater plants, steel and iron production, pulp and paper, food and beverage, construction, oil and gas, chemical plants and landfill among industries. For Oman and the Gulf this maps to tank, vessel and pit entry in refineries and gas plants, sewage and desalination pretreatment, cooling-water systems (chlorine and chlorine dioxide), cold storage and ammonia refrigeration, and fumigated grain stores where phosphine is a hazard. The 95 dB alarm, vibrating alert and bright alarm bars cope with noisy environments, and the operating range up to 50 °C covers most outdoor Gulf work, although the PID version is limited to 40 °C ambient and should be kept shaded in summer.
Information to send with an RFQ for the GasAlertMicro 5
- Version (standard, PID or IR) and the exact gas list with ranges.
- Diffusion or pumped, and the accessories required (holster, probe, confined-space kit).
- Battery type: alkaline or rechargeable, and charger type.
- Calibration gas and docking station requirements.
- Approval requirements and quantity.
Documents and quotation for the GasAlertMicro 5
A GasAlertMicro 5 series datasheet is attached on this page.
Send the version and gas configuration to Seven Star LLC and we will confirm availability, lead time and any further documents for the quotation.
Other Models in the Honeywell Bw Portable Range
Seven Star LLC supplies models from the Honeywell Bw Portable range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Honeywell BW Flex Portable Multi-Gas Detector | Fire & Gas Detectors | View details |
| Honeywell BW Max XT II Pumped Four-Gas Detector | Fire & Gas Detectors | View details |
| Honeywell BW Solo Serviceable Single-Gas Detector | Fire & Gas Detectors | View details |
| Honeywell BW Clip Maintenance-Free Single-Gas Detector | Fire & Gas Detectors | View details |
| Honeywell BW RigRAT Transportable Multi-Gas Area Monitor | Fire & Gas Detectors | View details |
| Honeywell GasAlertMicro 5 Series Portable Multi-Gas Detector | Fire & Gas Detectors | You are viewing this model |
Datasheets & Documents
- Datasheet Honeywell GasAlertMicro 5 Series Datasheet Download
Reviews (0)
About brand
Honeywell is the American industrial technology group whose products on this site cover gas and flame detection, pressure transmitters, flow measurement, gas metering, fire alarm systems and helicopter rotor balancing equipment. Its roots go back to a thermostat business in Minneapolis in 1885 and to Mark Honeywell's heating company, which merged with it in 1927. Several brands we list have joined Honeywell over the years: Gent fire systems of Leicester (part of Honeywell since 2005), Chadwick-Helmuth (a Honeywell business unit from 2002) and Elster gas metering (acquired around the end of 2015).
Seven Star LLC is an independent supplier in Muscat. We list Honeywell gas detectors and sensors, transmitters, Elster gas meters and flow computers, Gent fire alarm equipment and Chadwick-Helmuth balancers, and supply them and their spares in Oman and the GCC by part number.
Honeywell company profile
| Origins | 1885, Minneapolis (Butz thermostat business); merged with Mark Honeywell's company in 1927 |
|---|---|
| Brands in our range | Honeywell Analytics gas detection, SmartLine transmitters, Elster gas metering, Gent fire detection, Chadwick-Helmuth rotor track and balance |
| Gent | Founded in Leicester, UK, around 1872 by John Thomas Gent; part of Honeywell since 2005 |
| Elster | Gas, water and electricity metering; bought by Honeywell from Melrose, deal completed around the end of 2015 |
Milestones
- 1885: The Butz thermostat business starts in Minneapolis.
- 1927: It merges with Mark Honeywell's company.
- 2005: Gent fire detection (Leicester, UK) becomes part of Honeywell.
- 2015: Honeywell completes the purchase of Elster from Melrose around the end of the year.
Honeywell products we list
| Family | Models | Typical use |
|---|---|---|
| Fixed gas detectors | Searchline Excel, Searchline Excel Plus, 02104-N-XSSA, Sensepoint XCD RTD, Sensepoint XCD IR, XCD H2, Sensepoint XCL, Sensepoint XRL, OmniPoint, RAEGuard 2 PID | Flammable, toxic and VOC gas detection in process areas |
| Sensors, flame detection and control | SR-W-MP75C LEL sensor, SR-X2V O2 sensor, FS24X Plus flame detector, R4343E flame switch, System 57 card, 5704FS panel | Replacement sensors, fire detection and gas detection control panels |
| Transmitters and flow | SmartLine STG700, STG800, STR82D remote seal, VersaFlow Coriolis | Process pressure and mass flow measurement |
| Elster gas metering | Q.Sonic plus, TRZ2, Quantometer, RABO, IRM-3 DUO, EK280, EC 350, enCore FC1, enCore ZM1, gas-net F1, gas-net D2, GasLab Q2, USM display | Gas meters, volume correction and fiscal flow computing |
| Gent fire alarm systems | Vigilon Plus, Vigilon Compact Plus, Nano, Xenex, S-Quad detector, S-Cubed, ALD302 base, S4-34420 interfaces, loop card, repeat panel, mimic panel, XENS-850 call point, 74430 bell | Addressable and conventional fire alarm systems in buildings and plants |
| Chadwick-Helmuth rotor track and balance | 8500C, 8500C Plus, Vibrex 2000, Model 11, photocell system, printer, bracket, protractor | Helicopter rotor track and balance and propeller balancing |
Gas detection uses two basic approaches. Point detectors such as the Sensepoint XCD measure the gas at one location, with a catalytic or infrared sensor for flammable gas and an electrochemical cell for toxic gas such as H2S. Open path detectors such as the Searchline Excel send an infrared beam across an area up to a few hundred metres long and detect a gas cloud anywhere along it. Infrared sensors cannot be poisoned the way catalytic beads can, which matters on sites with silicones or H2S.
Where Honeywell products are used
In Oman and the GCC, Honeywell gas detectors protect wellheads, gas plants, refineries and tank farms. Elster meters and flow computers measure gas at city gate stations and in industry. Gent systems are installed in commercial buildings, hospitals and hotels, and Chadwick-Helmuth balancers are used by helicopter operators.
Ordering Honeywell products: what we need
Send the part number from the label (for example 02104-N-XSSA or SPXCDASMTXF). For gas detectors, add the gas, range, output and certification. For gas meters, add size (DN), flow range and pressure rating. For Gent equipment, add the panel type and loop protocol.
Facts checked against Honeywell press releases and SEC filings, and published histories of Gent and Chadwick-Helmuth, October 2026.
Browse Honeywell products by category: Fire & Gas Detector, Vibration, Flowmeters, Pressure Instrumentation, Temperature Instrumentation.
FAQ
Questions about the Honeywell GasAlertMicro 5 Series Portable Multi-Gas
Answers from our engineering team on installation, compatibility and integration.
01How many gases can the GasAlertMicro 5 monitor at once?
Up to five atmospheric hazards simultaneously, from a range that includes LEL, O2, CO, H2S, SO2, PH3, NH3, NO2, HCN, Cl2, ClO2 and O3, with VOC (PID) or CO2 (IR) in the dedicated versions.
02Can the GasAlertMicro 5 sample remotely?
Yes, with the optional integral motorised pump the datasheet states sampling from up to 20 m (66 ft). Without the pump it works by diffusion only.
03What is the difference between the standard, PID and IR versions?
The standard model has electrochemical and catalytic sensors, the PID model adds a 10.6 eV photoionisation detector for VOCs, and the IR model adds an infrared sensor for carbon dioxide. They are not interchangeable.
04What battery options are there?
AA alkaline cells or a hot-swappable rechargeable pack. Typical life is about 20 hours for the standard model and about 15 hours for the PID and IR models in a five-gas diffusion configuration.
05Is it compatible with docking stations?
Yes. Both diffusion and pumped configurations are compatible with the MicroDock II automatic test and calibration system, according to the datasheet.
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