Key specifications
- Monitored parameters
- Formaldehyde, total volatile organic compounds, benzene, carbon dioxide, PM2.5, PM10 and a combined air quality index, plus temperature, humidity, time and date on the flagship version
- Sensing elements
- Electrochemical for formaldehyde, a micro-electromechanical module for total volatile organic compounds, filtered non-dispersive infrared for carbon dioxide, laser scattering for the particle fractions, and dedicated elements for temperature and humidity
- Indicative thresholds
- Formaldehyde 0.080, total volatile organic compounds 0.600, benzene 0.030, carbon dioxide 1000, PM2.5 75, PM10 100 and index 100, above which the material calls a reading over the limit; the figures are printed without units
- Alarm
- An audible alarm sounds on the combined index only; the other parameters do not alarm
- Connectivity
- WiFi with a mobile application for remote reading, history curves and multiple users
- Integration
- Rules set in the application can switch a same-ecosystem air conditioner, purifier, humidifier or fresh-air unit
- Display
- Time, date, an index dial and the formaldehyde, total volatile organic compound, carbon dioxide, PM2.5, PM10 and benzene readings on one screen
- Air path
- Active constant-flow sampling, so a single reading does not depend on the air speed at the instrument
- Supply
- An internal 2400 mAh rechargeable cell giving about 7 hours, charged over Type-C and able to run from the mains
- Body
- 98 x 90 x 40 mm, square, with a wall-mount slot on the rear; the formaldehyde-only version is round
Indoor air is not one thing that is good or bad. It is a mixture whose parts rise and fall for different reasons, and the reason a single reading is of limited use is that the cure for one part is often irrelevant to another: opening a window lowers the carbon dioxide within minutes and barely touches the formaldehyde that a new fitted cupboard has been releasing for months.
An instrument carrying several channels at once is what makes that distinction visible on a site rather than in a laboratory.
Product overview
The range covers two versions. The flagship is a square body carrying formaldehyde, total volatile organic compounds, benzene, carbon dioxide, PM2.5, PM10 and a combined index, plus temperature, humidity, time and date, with WiFi logging to a mobile application. The second is a round body carrying formaldehyde alone, with the same application and history.
The distinction that matters is not the number of readings but the sensing arrangement behind them. Each family of pollutant needs a different element, and the material names them one by one, which is what allows the instrument to be judged as a set of channels rather than as a single number. The combined index is a summary of those channels and not a measurement of its own.
How the sensors detect each parameter
Formaldehyde is read electrochemically, an approach the material contrasts with the semiconductor sensor used at lower cost, which responds to a broad range of gases and relies on processing to separate them. Carbon dioxide is read by a filtered non-dispersive infrared path, which detects the absorption of the gas itself and is therefore selective by construction rather than by inference. The two particle fractions are read by laser scattering, which is why PM2.5 and PM10 can be reported separately from a single air path. Total volatile organic compounds are read by a micro-electromechanical module, and the material describes it as responding to a family of compounds rather than to one of them.
That family response is the honest description of the channel and also its limit. A reading of total volatile organic compounds says that something of that group is present and in roughly what quantity. It does not say which compound, and the separate benzene channel exists because one member of the group is of particular concern and is worth resolving.
How to select the right air quality monitor
The first question is what the reading is for. If the purpose is to show that a fit-out has settled, or that a specific product has stopped releasing, then the formaldehyde channel is the one that matters and the round version answers the question. If the purpose is to supervise an occupied space, then occupancy drives carbon dioxide, activity drives particles, and the wide version is the one that will keep the whole picture in view.
The second is whether the reading has to act on the room or only report it. Rules that switch ventilation or purification can turn a raised reading into a response without anyone watching a display. That function is limited to equipment in the same ecosystem, which is a constraint on the installation rather than on the instrument.
Measurement limitations and selection considerations
The material describes thresholds rather than a specification. It gives over-limit figures for each parameter and states that the original pages carry no units against them, and it gives neither a measuring range nor an accuracy for any channel. On the material as supplied the instrument is therefore an indicator, useful for comparing a room with itself over time and for showing a trend, and not a calibrated analyser whose figure can be defended in a dispute. For a handover or a complaint, the figure would have to be confirmed against an instrument with a stated range, accuracy and calibration.
There is a second limit in the response of the channels themselves. An electrochemical cell and a laser scattering path each take time to settle and each responds to conditions as well as to concentration, so a reading taken moments after switching the instrument on is not yet the reading the room would give. The material does not state a warm-up or a response time, which is one of the figures a quotation should establish, because it decides whether the instrument can be used to sweep a room or only to sit in one place and report what that place does over a day.
Features
- Seven measured parameters on one screen, so a room can be judged for the pollutants that behave differently rather than by a single figure
- An electrochemical formaldehyde channel, which the material contrasts with the semiconductor approach used at lower cost for a broader and less selective response
- A filtered non-dispersive infrared carbon dioxide channel, which reads the gas itself rather than inferring it from a combined response
- Laser scattering for PM2.5 and PM10, reporting the two particle fractions separately
- Active constant-flow sampling, so a reading does not depend on how fast the air happens to be moving at the instrument
- History curves in the application, built from continuous sampling, which is what makes an occasional spike distinguishable from a sustained condition
- Rules that switch ventilation or purification equipment in the same ecosystem, so a raised reading can act on the room rather than only report it
Technical specifications
Every value below is taken from source documentation. Where a parameter is not stated in the available material it is marked as information required rather than estimated.
Monitored parameters| Formaldehyde | Indicated as present, with an over-limit figure of 0.080; the material prints the figure without a unitStandard |
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| Total volatile organic compounds | Indicated as present on the flagship version, with an over-limit figure of 0.600Standard |
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| Benzene | Indicated as present on the flagship version, with an over-limit figure of 0.030; a note elsewhere in the material states that one unnamed version does not carry this parameterStandard |
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| Carbon dioxide | Indicated as present on the flagship version, with an over-limit figure of 1000Standard |
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| PM2.5 | Indicated as present on the flagship version, with an over-limit figure of 75Standard |
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| PM10 | Indicated as present on the flagship version, with an over-limit figure of 100Standard |
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| Combined index | Indicated as present on the flagship version, with an over-limit figure of 100, and the only parameter that raises the audible alarmStandard |
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| Temperature, humidity and clock | Indicated as present on the flagship version; the formaldehyde-only version does not carry themStandard |
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| Units | The material states that the original pages do not carry units against the threshold figures, so the units are information requiredInformation required |
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| Measuring range above the threshold | Not stated in the material, which quotes only the over-limit figuresInformation required |
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| Accuracy and resolution of each channel | Not stated in the materialInformation required |
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| Warm-up time and response time | Not stated in the materialInformation required |
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Versions| Flagship version | Carries all seven measured parameters, plus temperature, humidity, time and date, application logging and scene integrationStandard |
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| Formaldehyde-only version | Carries formaldehyde alone, in a round body; a note in the material questions whether the scene-integration row applies, because the image is cut offStandard |
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| Parameter count | The material itself records three different counts across its own pages - a figure ending in one, a figure ending in eight, and eleven rows when time and date are included - and the page follows the fullest parameter list rather than one of the headline countsInformation required |
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| Sensor assignment between versions | The material states that different versions and batches may not use the same sensing arrangement and that the configuration shown on the inner page governsInformation required |
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Interface, alarms and integration| Application | A mobile application over WiFi, for remote reading, history curves and the setting of trigger rulesStandard |
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| History | Curves for formaldehyde, PM2.5, total volatile organic compounds, carbon dioxide, benzene and PM10, taken from continuous samplingStandard |
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| Alarm | An audible alarm on a combined index over the limit; the material states expressly that no other parameter raises oneStandard |
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| Automatic action | Rules can switch an air conditioner, purifier, humidifier or fresh-air unit, within the same ecosystem onlyStandard |
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| Shared use | Several people can view the same instrument at the same timeStandard |
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| Operation | Mechanical keys on the body, beside the applicationStandard |
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| Mounting | A wall-mount slot on the rear, described as taking a fixing that is not suppliedStandard |
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| Data export and an open interface | Not stated in the material; the readings are available through the supplier application and no other route is describedInformation required |
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Supply, environment and construction| Supply | An internal 2400 mAh rechargeable cell, charged over Type-C, with mains operation also possibleStandard |
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| Runtime | About 7 hours, described by the material as measured in a laboratory and as varying with conditionsStandard |
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| Body | 98 x 90 x 40 mm, square; the formaldehyde-only version is roundStandard |
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| Weight | Not stated in the materialInformation required |
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| Working temperature and humidity | Not stated in the materialInformation required |
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| Ingress protection | Not stated in the materialInformation required |
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| Standard quoted | GB/T 18883-2022 is quoted in the overview as the standard followed; no certificate or test report is offered with it and the material does not state which clause is claimedInformation required |
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Available models
Selection table | Model | Configuration | Key ranges | Availability |
| Flagship multi-parameter version | Square body carrying all seven measured parameters plus temperature, humidity, time and date, with WiFi logging and scene integration | Formaldehyde 0.080, total volatile organic compounds 0.600, benzene 0.030, carbon dioxide 1000, PM2.5 75, PM10 100 and index 100 given as over-limit figures, printed without units | The form for a general indoor air check, where several pollutants have to be watched at once and the history matters |
| Formaldehyde-only version | Round body carrying formaldehyde alone, with the same application and logging | The over-limit figure for formaldehyde is the same as on the flagship version | The form for a single-purpose check on new furnishing or a fit-out, where no other channel is needed; the material is ambiguous about the scene-integration row for this version |
Customization
- The version: the flagship multi-parameter body or the round formaldehyde-only body
- The sensing arrangement, which the material states may differ between versions and batches and which the inner page of the specification governs
- The mounting: free standing, or wall mounted using the rear slot, with the fixing supplied separately
Certification and compliance
Certification documents not yet supplied
Certifications are only published once a certificate copy can be produced, so this section is deliberately empty rather than populated with assumed approvals. Tell us which approvals your application requires and we will confirm what is available for this instrument.
Parameters still to be confirmed
The following are required for a complete specification but are not stated in the documentation supplied to us. They are listed rather than estimated:
- The units of the over-limit figures, which the material states are not printed on the original pages
- The measuring range of every channel above its over-limit figure
- The accuracy and resolution of every channel
- The warm-up and response time of the electrochemical, infrared and laser channels
- The working temperature and humidity range
- Ingress protection and the weight of the body
- Whether the readings can be read by any interface other than the supplier application, and whether a data export exists
- The clause and the test report behind the standard quoted in the overview
- Whether the scene-integration function is present on the formaldehyde-only version, which the material leaves open
- The meaning of the version name that the material notes against one parameter, which it does not explain
- Warranty period and the terms that apply
- An English-language datasheet
Frequently asked questions
Why do several gases appear on one instrument?
Because they behave differently and a single figure cannot represent them. Carbon dioxide rises with occupancy and falls when a room is ventilated, formaldehyde and the volatile organic compounds rise from furnishing and finishes and persist for months, and the particle fractions rise from cooking, printing or outdoor air. One channel tuned to one of them would be blind to the others, and the reason the combined index exists alongside the individual readings is that the index is a summary and the readings are the evidence behind it.
Is the reading a measurement or an indication?
The material calls the figures over-limit values rather than a specification with a range and an accuracy, and it prints them without units, so on the material as supplied the instrument is an indicator of a condition rather than a calibrated analyser. For a decision that has to be defended - a handover, a complaint, a warranty question - the reading would need to be confirmed against an instrument with a stated range, accuracy and calibration, and the units of the thresholds would need to be established first.
What does the material say about the standard?
The overview quotes a standard edition, and that is all it does. No test report, no clause and no accredited laboratory are named, so the standard is carried on this page as a statement the client made about the product rather than as a verified conformity. Anyone relying on it for a tender should expect to be asked for the report behind it.
What has to be confirmed before a quotation?
The units and the measurement ranges behind the over-limit figures; the accuracy and the resolution of each channel; the warm-up and response times, because a channel that takes minutes to settle cannot be used to check a room on a walk through it; whether the readings can be exported through an interface other than the supplier application; the working temperature and humidity; the weight; whether the standard quoted is backed by a report; and which version and which batch the quotation refers to, since the material states the sensing arrangement may differ between them.
