A number on a screen, and what it does and does not tell you · review
Measures PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature and humidity every three seconds, with no alarm functions.
Where this leaves you Sixty dollars less than two identically titled monitors on this shelf, and its own listing says it has no alert or alarm functions — which is seven of the sixteen things the name counts.
Operation beep only offers key press feedback; no alert or alarm functions.
That is honest, and it is also the gap between this monitor and its name. Sold as 16-in-1, on the only breakdown published anywhere on this shelf — nine parameters plus seven alerts — this device has the nine and none of the seven.
What it has instead is color lights, which tell you the same thing silently.
Two monitors on this shelf carry this exact product title at 139.99. This one reads 79.99 and names CO2 among its parameters, which one of those two does not.
If you want the alarms, pay the difference. If you want the readings, the shelf has already answered.
Read on the day this page was built: $80 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.
At $80, it is the 3 cheapest of the 7 models in this category published here.
| Measures | PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature, humidity |
|---|---|
| Alerts | None — the listing states "no alert or alarm functions"; the beep is key-press feedback only |
| Indicators | Tiered color lights showing real-time levels |
| Refresh | Every 3 seconds |
| Logging | 24 hours of continuous data; dimming does not pause it |
| Controls | Single button for power and °C/°F; double-tap dims the lights |
| Power | Type-C, adapter and cable included |
| Warranty | 12 months, covering factory defects |
| Accuracy | Not stated by the maker |
| Amazon reference | B0GYC51QYC |
| EAN | 0717944065209 |
No. The listing is explicit: *Operation beep only offers key press feedback; no alert or alarm functions.* It shows tiered color lights instead. Two monitors on this shelf have an audio prompt and one has seven user-set thresholds.
The listing names eight parameters. The Sainlogic on this shelf publishes the breakdown — nine parameters plus seven alerts — and this monitor states it has no alerts. On that arithmetic the name does not add up, and the listing offers no other explanation.
For deciding whether to open a window, no. For watching a cooking spike rise and fall, it is the slowest here: three monitors on this shelf refresh in one and a half to two seconds.
home comfort appliances from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
| Model | Price | Measures |
|---|---|---|
| AirWhisper 9AQI+7 AQI Buzzers+Time | $80 | PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature, humidity |
| sainlogic air | $105 | 9: CO2, PM2.5, PM10, PM1.0, AQI, HCHO, TVOC, temperature, humidity |
| GoveeLife H5106101 | $40 | 3: PM2.5, temperature, humidity |
| zemeollo ZLJC2 | $30 | CO2, HCHO, TVOC, benzene, PM2.5, PM10 |
Reading the air in a nursery or bedroom overnight, with lights dimmed and no alarm to wake anyone
Details checked on October 4, 2026.
Specifications: the manufacturer sheet for home climate appliances and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
16-in-1, measures PM1.0 PM2.5 PM10 CO2 TVOC HCHO temperature humidity, 1.5 s sampling, 4–5 h battery, 12-month support
Measures PM1.0, PM2.5, PM10, CO2, TVOC, HCHO, temperature and humidity, sampling every 1.5 seconds.
Best for: Someone who wants CO2 and particulates on one screen and will keep it plugged in
≈ $140
3 parameters, PM2.5 ±15 µg/m³, temp ±0.54 °F, humidity ±3% RH, 2 s refresh, wired, 13-day graphs, 2-year export
Measures PM2.5, temperature and humidity with published tolerances, mains powered, with two years of exportable data.
Best for: A room where a Govee purifier or humidifier should switch itself on, with the history kept
≈ $40
16-in-1, lists PM1.0 PM2.5 PM10 TVOC HCHO temperature humidity, 1.5 s sampling, 4–5 h battery, 12-month warranty
Lists PM1.0, PM2.5, PM10, TVOC, HCHO, temperature and humidity, sampling every 1.5 seconds.
Best for: Particulates and formaldehyde in a bedroom, if CO2 is not what you are after
≈ $140
