Specifications
| Manufacturer | Temtop |
| Model | LKC-1000S |
| Dimensions (inches / cm) | 7.0 x 2.6 x 1.3 inches (17.7 Ă— 6.55 Ă— 3.2 cm) |
| Weight (pounds / kg) | 0.55 lb (0.25 kg) |
| Measurements | PM2.5, PM10, particles, AQI, temperature, humidity, and HCHO (formaldehyde) |
| Usage | Indoor |
| Sensors | Temtop PM300 Laser Particle Sensor (3rd Gen, QSI Laser Diode) and Dart Electrochemical HCHO Sensor |
| Measured Pollutants (rating) Measured Pollutants – Score Summary: 8.5 - Average Score (13 monitors) 9.4 - Best Score (2 monitors) 5.1 - Worst Score (1 monitors) This rating summarizes how capable the sensor suite is — including what it measures (PM2.5, CO2, etc.), usable ranges, responsiveness, and overall stability. | |
| PM2.5 Range | 0–999 µg/m³ |
| PM2.5 Accuracy | - |
| CO2 Range | - |
| CO2 Accuracy | - |
| Accuracy (rating) Accuracy – Score Summary: 8.9 - Average Score (13 monitors) 9.5 - Best Score (1 monitors) 5.6 - Worst Score (1 monitors) This rating reflects how closely the monitor’s readings track a trusted reference device across different conditions and pollutant levels. | |
| Connectivity | Not-smart |
| Power Source | Built-in Battery (up to 6 hours) |
| Other Features | HCHO (Formaldehyde) |
| Warranty | 1-year |
Full Review
The Temtop LKC-1000S is a 7-in-1 air quality monitor that measures PM2.5, PM10, particles, AQI, temperature, humidity, and HCHO (formaldehyde). It doesn’t measure TVOC; that’s an upgrade exclusive to the LKC-1000S+ and LKC-1000S+ 2nd models.
It’s the sensor I use in all my air purifier reviews and the main tool for testing airborne particle removal here at Air Purifier First.
The Temtop LKC-1000S isn’t a device you’d place on your desk or a shelf to read air quality data in real time. It’s more of a measuring tool you turn on only when you want to check the current air quality, making it a perfect option for periodic testing.
Sensor Types & Accuracy
The Temtop LKC-1000S uses a Temtop PM300 Laser Particle Sensor (3rd Gen, QSI Laser Diode) and a Dart Electrochemical HCHO Sensor.
The most important component in this device is the Temtop PM300, which detects PM2.5 particulate matter in the air. It’s based on Mie-scattering theory and can detect particles as small as 0.3 µm, meaning that PM2.5 particles (all particles with a diameter smaller than 2.5 micrometers) fall entirely within its detection range.
As for the other readings, PM1, particles, and AQI are calculated algorithmically based on data collected by the Temtop PM300.
What’s great is that Temtop uses an industrial-grade sensor that, according to the manufacturer, will last an impressive 20,000 hours. That’s a remarkable figure, especially compared to the competition.
In addition to this, there’s the Dart sensor, which detects formaldehyde levels in the air. This is one of the few air quality monitors that specifically detects formaldehyde.
One thing to keep in mind is that you shouldn’t use this monitor for extended periods in spaces with extremely high formaldehyde concentrations, as this can potentially damage the sensor and compromise future readings.
It’s also worth noting that this sensor can occasionally react to high levels of benzene, ammonia, ethanol, and other chemicals that may be present in the air.
Another thing worth mentioning is that the Temtop LKC-1000S has a built-in fan that draws air in continuously, providing real-time and accurate air quality data.
All in all, Temtop’s sensor is one of the most reliable on the market, and that’s exactly why I use this device when testing air purifiers.
Measured Data Reporting
Honestly, this is where the Temtop LKC-1000S falls a bit behind some competing devices. Not because it displays insufficient information, but because of the way it displays and stores it.
In my opinion, the biggest drawbacks are the lack of a smart app, lack of advanced export options, and the inability to review historical air quality readings.
Display
Since the Temtop LKC-1000S doesn’t have a smart app or any other way to read data remotely, all readings can only be viewed on the display.
However, the display is very readable, well-positioned, and shows everything you need. It also features some color-coded details that further indicate air quality levels. For example, when the air quality is good, a green box at the bottom of the display will read “GOOD,” and when the air quality is extremely poor, the same box will turn purple and read “HAZARDOUS.”
All in all, the display is quite good, but I would still prefer it if the Temtop could connect to a smart app, something similar to the Temtop M10i, which I also tested some time ago.
Some other devices that are equally high-quality, provide excellent readings, and have a smart app include the Qingping Lite and the Qingping Gen 2.
Cleaning & Calibrating
When it comes to calibration, the sensors on the Temtop LKC-1000S come pre-calibrated and ready to use.
However, Temtop recommends keeping the monitor active for eight hours in a well-ventilated area from time to time so that the sensors can reset and recalibrate.
Essentially, the Temtop LKC-1000S doesn’t need to be recalibrated, but if you ever notice that the readings are inaccurate or inconsistent, I recommend contacting Temtop support. If your device is still within the warranty period, I’m sure you’ll be able to find a solution.
Design & Build Quality
The LKC-1000S is built with high-quality plastic that is durable yet comfortable in the hand.
The device is well designed; the black and orange colors blend nicely, and the LCD is large enough to see all the values clearly. Below the display are the control buttons, which are used for complete control of the device.
What I would like is for the display to be more durable and resistant, as I scratched mine within the first few days of use.
FAQ on Temtop LKC-1000S
Does the Temtop LKC-1000S measure TVOCs?
Unfortunately, the Temtop LKC-1000S doesn’t measure TVOCs. It only measures formaldehyde.
What does this air quality monitor measure?
The Temtop LKC-1000S displays values for seven different metrics: PM2.5, PM10, particles, AQI, temperature, humidity, and HCHO (formaldehyde).
Can it be used as an everyday air quality monitor?
For that purpose, I would recommend other devices that are designed to run all day and continuously monitor air quality. The Temtop LKC-1000S is more of an on-demand device that you turn on when needed
Can it detect fiberglass particles?
Yes, it can detect some fiberglass particles if they fall within the PM2.5 or PM10 size range. However, it can’t identify them as fiberglass and will miss many larger fibers.
No memory? Really? Doesn’t it have a usb connection that allows to download measured data from the past?
At least the Temtop LKC-1000S+ 2nd version does have it.
No, the Temtop LKC-1000S doesn’t save air quality data, but as you said, the Temtop LKC-1000S+ does save data, which can easily be exported.