Best Temtop in 2026

[7-IN-1 Multifunctional]: This professional air quality monitor measures CO2, PM2.5, PM10, particle numbers, HCHO, temperature and humidity.

[Advanced Built-in Sensor]: Equipped with Temtop Laser PM2.5 sensor, SenseAir NDIR CO2 sensor, Dart electrochemical HCHO sensor and Sensirion temperature and humidity sensor.

[Audio Alarm]: The monitor will automatically alert through the built-in buzzer (MUTE function available) and the indicator light when the air pollution levels get too high.

The economical 5-in-1 air quality detector use highly accurate and professional sensors to measure PM2.5, PM10, particle, HCHO and AQI.

By using our latest 3rd generation Temtop laser particle sensor and optimised PSO algorithm, it makes particle measurements become more accurate and stable and enhanced its sensor life up to 20,000 hours.

The pre-factory calibrated electrochemical sensor enhanced its accuracy and capturing formaldehyde molecules more precisely.

ALL-IN-ONE RELIABLE AIR QUALITY MONITOR. The most advanced monitor measuring particulate matter (PM2.5 and PM10), formaldehyde (HCHO), VOC (airborne chemicals), humidity, temperature, and AQI. Tested by AQMD, R2 up to 0.999.

DATA EXPORT AND HISTOGRAM. The histogram function can reflect the changes on PM2.5 directly for the latest 12 hours, helping you to keep track of the air. Export data to gain full visibility and analysis into 7 key indoor air factors. Memory allows at least 3 months of continuous data recording.

PRE-CALIBRATED SENSORS. The pre-calibrated Dart electrochemical sensors will accurately capture formaldehyde molecules accompanied by the detection function covering a wide range of organic pollutants.

UPGRADED SENSOR: Adopting Temtop second-generation PM2.5 particle laser sensor, directly transform the PM2.5 & PM10 concentration into visual data and colorful health level indicators, providing an effective safeguard for you and your family.

PROFESSIONAL SENSOR: Advanced industrial-grade sensor offers more than 20,000 hours lifespan. Combined with the unique particle swarm optimization algorithm, it makes particle measurement more accurate and stable.

DATA GRAPH: Large storage capacity to store and display the data of the past 12 hours, check the air status via the histogram and track the trend of air quality for the specific time period.

[4 in 1 Multifunctional Monitor] This smart air quality meter provides accurate monitoring of PM2.5, AQI, HCHO, TVOC. Conveniently offer measures 4 important indexes for indoor air quality.

[Professional High Tech Components] Adopting Temtop core technology industrial-grade PM2.5 laser sensor, British Dart formaldehyde sensor. Professional high-tech components to ensure the ultra-precision and professionalism for detecting needs.

[Easy to Use] Only use one single button to realize ON/OFF, interface switching, and auto-loop function. 3 color led light to indicate the air quality from healthy to unhealthy. The calibration function for HCHO sensor is also available.

💡💡 【Breakthrough】-- You can have a temperature & humidity detector with air quality monitor for the price of a thermometer.

💡💡【Originality】 -- Sensor integration technology innovatively integrates PM2.5 and temperature and humidity sensors, 30% thiner than other hygrometers.

💡💡【Beyond】-- it can monitor PM2.5, a category 1 carcinogen declared by the WHO in real time, making temperature and humidity detection simpler and easier.

PORTABLE DUST MONITOR. Adopts the Mie-scattering principle to detect detect the concentration of 5 different particles, including PM1, PM 2.5, PM4, PM10 and TSP.

CLEAR DISPLAY AND DATA INTEGRATION. Large display for viewing particle data, you can choose a specific channel as the main view. Built-in 2,000,000 sets of data storage capacity and can be directly exported to your U disk.

RELIABLE RESULTS. Adopts 2.83L/min (1 CFM) pump suction laser particle sensor module, a more stable flow rate brings a more accurate measurement of particulate matters.

The perfect companion for indoor environments, allowing you to monitor CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time

Easy for anyone to use – the color coding and the optional buzzer warns you when the CO2 concentration gets too high

Power-efficient e-ink display ensures super long battery life for this wireless device (up to 4 years)

RELIABLE RADON RESULTS: As radon levels fluctuate daily, continuous long-term measuring is necessary. Airthings Wave Plus measures radon accurately and reliably

CLEAN AIR SENSORS: Radon, Carbon Dioxide (CO2), VOCs (airborne such as kitchen gases, fumes and cleaning products), humidity, temperature and air pressure sensors allow you to gain full visibility into six key indoor air factors

EASY AND CLEAR RESULTS: Connect via Bluetooth to the Airthings App or log in to the Airthings Dashboard online for detailed insights into your air

Know your air – Amazon Smart Air Quality Monitor makes it easy to understand what’s in your indoor air.

Track and measure – Keep tabs on 5 key factors: particulate matter (PM 2.5), volatile organic compounds (VOCs), carbon monoxide (CO), humidity, and temperature.

Stay informed – Get an indication of current air quality from the color-coded LED, and an easy-to-understand air quality score in the Alexa app anytime.

Fully customizable ppm deadband and CO2 set point allow flexibility in programming

Trend chart records CO2 levels per minute, hour, day and week for accurate analysis of CO2 distribution

Adjustable trend chart zoom levels let you trace your ppm levels

⚛️ ACCURATE: Carbon Monoxide (CO) gas detector, 0-1000ppm with 1ppm resolution. USA NIST Calibration. Turn ON and GO.

🌇 DETECT: Electrochemical cell sensor with error better than ≤±5% F.S. and response time: T<30s. Zero and span calibration options. Comes factory calibrated.

🎆 ALARMS: Adjustable audio, visual, and vibration alarms alert when preset levels are reached. Alarm digital time stamp and logging.

🏕️ [High-precision CO2 Sensor]: The CO2 detection adopts the most advanced sensor of Swiss Sensirion's unique PASens technology, and adopts the photoacoustic detection principle to perform accurate and reliable measurements in a wide range of concentration areas and applications.

🔔 [Carbon Dioxide Concentration Alerts]: The CO2 concentration alert value can be customized to make our life, work or production environment safer.

💧 [Temperature and Humidity Monitor]: Temperature and humidity are closely related to human body, plants or storage environment. This air quality tester has the function of real-time monitoring of temperature and humidity.

✅ [PROTECTS EVERY BREATH] – When it comes to the health of your family, AirKnight knows that every breath counts. Our 9-in-1 air quality monitor is equipped with powerful sensors that detect the main 8 kinds of air pollution (CO2, VOCs, Formaldehyde, AQI, PM2.5 & PM10 Dust Particles, & more) in REAL-TIME, all displayed on one sleek, clear LCD screen.

✅ [SIMPLE, FAST SETUP] – No complicated app, badly written instructions or Wi-Fi required for one of the most premium indoor air quality meters. Our device was specially designed to be operated by anyone, anywhere, so you can keep your space safe without a tech-induced headache. An instructional video is included also, just in case.

✅ [PORTABLE FOR EVERYWHERE, ANYTIME USE] – Featuring a heavy-duty 3000 mAh rechargeable Lithium-Ion battery, your AirKnight AK1000 portable air quality monitor is designed to travel with you, monitoring your air quality for hours at a time on a single charge. Never go unprotected again!

Indoor CO2 Monitor: Compact size Body with hollow back design for carring and airflow. Big colorful LCD digital screen for people easy to identify and read. Not only monitoring the CO2 content, also can test the temperature & humidity. Air quality monitor is Keeper of family health, Perfect for home interior, such as living room, baby room, classroom, office and which closed places etc.

Necessity of Air Quality Monitor: Carbon dioxide (CO2) is not harmful to human body when it is low, but when it overs a certain amount, it will affect the breathing of humans (and other organisms). If serious, life is threatening. Thus, we have to monitor the CO2 content of air for keeping health.

Advanced NDIR Technology: Mini CO2 meter uses high precision NDIR sensor technology to detect carbon dioxide content accurately and quickly. and it can hazard assessment, when CO2 of air exceed the setting alarm value(alarm value: 1000 PPM), it will warn to remind people to open the window or turn on air purifier for keeping balance of air.

Measuring Range CO2: 0~9999ppm

Temperature Range: -10.0~60.0°C (14~140°F) /Resolution: 0.1°C/°F / Accuracy: ±0.6°C / ±0.9°F

CE Marking, passed the standards and had been approved by European Directives for health & safety

MULTIFUNCTIONAL & SCIENTIFIC – This indoor air quality monitor accurately assesses temperature (in C/F), humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10) which travel deeply into the respiratory tract, reaching the lung alveoli.

PORTABLE TESTING – Spot check or leave device on for continuous monitoring of indoor air quality. Built-in stand allows air monitor to be placed unattended anywhere. This easy-to-carry device can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8” 320 x 240 pixel color LCD display.

ADVANCED FAN & SENSORS – This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to measure formaldehyde and natural/synthetic organic compound levels. Air monitor also auto calibrates in fresh air.

MULTIFUNCTIONAL & SCIENTIFIC – As our newest model, this indoor air quality monitor accurately assesses temperature in Celsius, humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10) which travel deeply into the respiratory tract, reaching the lung alveoli.

PORTABLE TESTING – Spot check indoor air quality anywhere or leave device on for continuous monitoring. This easy-to-carry air quality tester can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8” 320 x 240 pixel color LCD display.

ADVANCED FAN & SENSORS – This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to test air quality including formaldehyde and natural/synthetic organic compound levels.

MULTIFUNCTIONAL & SCIENTIFIC – This indoor air quality monitor accurately assesses multiple measures of air quality including concentrations of formaldehyde (HCHO), total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter measuring <2.5 microns in size (PM2.5) which travel deeply into the respiratory tract, reaching the lung alveoli and can worsen asthma.

PORTABLE TESTING – Spot check indoor air quality anywhere or leave device on for continuous monitoring up to 2 days. This easy-to-carry air quality tester can help monitor air quality at home, in the car, and in hotel rooms. The 2200mAh battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8” color LCD display.

ADVANCED FAN & SENSORS – This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to measure formaldehyde and natural/synthetic organic compound levels.

[7-IN-1 Multifunctional]: This professional air quality monitor measures CO2, PM2.5, PM10, particle numbers, HCHO, temperature and humidity.

[Advanced Built-in Sensor]: Equipped with Temtop Laser PM2.5 sensor, SenseAir NDIR CO2 sensor, Dart electrochemical HCHO sensor and Sensirion temperature and humidity sensor.

[Audio Alarm]: The monitor will automatically alert through the built-in buzzer (MUTE function available) and the indicator light when the air pollution levels get too high.

【Award-winning Multifunction Air Quality Detector】Qingping Air Monitor shows a full picture of Indoor Air Quality (IAQ) by monitoring PM2.5, CO2, TVOC, temperature, and humidity. It provides real-time data of weather forecast, AQI, and UV index (forecast of AQI and UV is not available in the US). You can also check the date, calendar and time on the screen (need to connect it to the network to access the right time zone). The product with elegant design has won an iF and a Red Dot design awards.

【Accurate and Reliable Measurement】The product is fast-responding and sensitive with a 1.2GHz 4-core A7 chipset. The product has top-level sensors built-in, along with the multi-mode compensation algorithm, the measured data is accurate and reliable. The innovative design of the vents enables sufficient contact between the air and the sensors to improve efficiency. The evaluation and colorful bar under readings help you to interpret the indoor air quality.

【High-resolution Touch Screen】The 3.1'' IPS touch screen with 328 PPI is ultra-clear. The brightness can be adjusted automatically. Each metric is with a color indicator under the number, so you can understand the indoor air quality and the temperature/humidity level of your room at a glance. You can touch the numbers or slide to switch the interfaces, all the operations are smooth and easy.

Acrylic clear case shell, high transmittance to be looked through

2.8" TFT screen, colorization display, wide angle vision up to 180°

High sensitivity sensor ensures the high accuracy in data collections

ALWAYS-ON AIR QUALITY SENSORS: WiFi connected indoor air quality monitor measuring radon gas, particulate matter (PM2.5), carbon dioxide (CO2), VOCs (airborne such as kitchen gases, fumes and cleaning products), humidity, temperature, and air pressure.

ACCURATE DIGITAL RADON DETECTOR: Radon is the number one cause of lung cancer among non-smokers and kills more than 6x the number of people than home fires and carbon monoxide poisoning combined.

FREE & FRIENDLY APP: Use the Airthings app to manage notifications, check current readings, and analyze trends over time. Check your local pollen forecast.

Multiple Detectable Gases - BIAOLING upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10). This new mode can offer real time data and mean value, it is recommend you to focus on mean value of each gas after testing enough time because long-term monitoring, the real-time data exist instability.

Know Your Air Clearly - For everyone,It's necessary to know the air quality of the place where you live.This air monitor have LCD Digital Color Screen, large and easy to read. This air monitor will offer color indication to show overall environment quality which have Good(Green), Mild Pollution(Yellow),Severe Pollution(Red) three grade. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions.

Easy Operate - This air monitor is easy to operate which just pressing the functional button and one full page design make everyone can easy to read all the real time readings at the same time. Size about 5.83” * 2.76” * 1.18”. It's easy to carry the intelligent air quality monitor that can help us detect the air quality in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman.

The economical 5-in-1 air quality detector use highly accurate and professional sensors to measure PM2.5, PM10, particle, HCHO and AQI.

By using our latest 3rd generation Temtop laser particle sensor and optimised PSO algorithm, it makes particle measurements become more accurate and stable and enhanced its sensor life up to 20,000 hours.

The pre-factory calibrated electrochemical sensor enhanced its accuracy and capturing formaldehyde molecules more precisely.

Multiple Detectable Gases - BIAOLING upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Monoxide(CO),Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10). This new mode can offer real time data and mean value, it is recommend you to focus on mean value of each gas after testing enough time because long-term monitoring, the real-time data exist instability.

Know Your Air Clearly - For everyone,It's necessary to know the air quality of the place where you live.This air monitor have LCD Digital Color Screen, large and easy to read. This air monitor will offer color indication to show overall environment quality which have Good(Green), Mild Pollution(Yellow),Severe Pollution(Red) three grade. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions.

Easy Operate - This air monitor is easy to operate which just pressing the functional button and one full page design make everyone can easy to read all the real time readings at the same time. Size about 5.83” * 2.76” * 1.18”. It's easy to carry the intelligent air quality monitor that can help us detect the air quality in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman.

ALL-IN-ONE RELIABLE AIR QUALITY MONITOR. The most advanced monitor measuring particulate matter (PM2.5 and PM10), formaldehyde (HCHO), VOC (airborne chemicals), humidity, temperature, and AQI. Tested by AQMD, R2 up to 0.999.

DATA EXPORT AND HISTOGRAM. The histogram function can reflect the changes on PM2.5 directly for the latest 12 hours, helping you to keep track of the air. Export data to gain full visibility and analysis into 7 key indoor air factors. Memory allows at least 3 months of continuous data recording.

PRE-CALIBRATED SENSORS. The pre-calibrated Dart electrochemical sensors will accurately capture formaldehyde molecules accompanied by the detection function covering a wide range of organic pollutants.

UPGRADED SENSOR: Adopting Temtop second-generation PM2.5 particle laser sensor, directly transform the PM2.5 & PM10 concentration into visual data and colorful health level indicators, providing an effective safeguard for you and your family.

PROFESSIONAL SENSOR: Advanced industrial-grade sensor offers more than 20,000 hours lifespan. Combined with the unique particle swarm optimization algorithm, it makes particle measurement more accurate and stable.

DATA GRAPH: Large storage capacity to store and display the data of the past 12 hours, check the air status via the histogram and track the trend of air quality for the specific time period.

Know Your Air: this air quality monitor provids accurate PM2.5 information(with high quality Series Particle Sensor) in your home/office and allows you to take timely measures to keep the air quality within safe levels

3-in-1 Multifunctional Tester: displays PM2.5/AQI current and max value for 1h/24h/since last reset; also measuring the indoor temperature(°C/°F switchable) and relative humidity； Note: No outdoor temperature and humidity; will not detect mold

6 Grades Air Quality Levels Indicator: Good, Moderate, Poor, Unhealthy, Severe and Hazardous, showing you instantly what your air quality is like

Latest Generation of Formaldehyde Air Rapid Test Kit for home, office, automobile etc. indoor air quality test.

Rapid and semi-quantitative testing of air formaldehyde without the need for any equipment.

Great for on-site testing of formaldehyde inside a car, a room or furniture.