Levenhuk Wezzer PLUS LP90 is a compact CO₂ monitor that can also measure air temperature and humidity. This small device alerts you if the CO₂ or humidity levels are considered too low or too high, making the inside area a less comfortable place to stay. If the concentration of carbon dioxide exceeds the recommended level for ventilated rooms, the gadget will alert you to air the room out. There are digital alerts on the color LCD screen and sound alerts available. If you prefer, you can turn the beeper off.

Another useful feature of the Levenhuk Wezzer PLUS LP90 CO₂ monitor is the history of maximum and minimum records. Furthermore, the device calculates the average CO₂ level every 15 minutes or 8 hours. It helps determine if there was enough oxygen in the room while you were sleeping. By regularly analyzing the obtained data and following ventilation recommendations, you can create a more comfortable atmosphere in any room, whether in a bedroom, children’s room, or an office.

The device is AC powered (an AC adapter must be purchased separately).

Key features:

  • “3-in-1” gadget: thermometer, hygrometer, CO₂ monitor
  • A stylish minimalist design: a tabletop half-sphere device with an LCD screen
  • Alerts you to any exceeded levels of humidity and CO₂
  • CO₂ levels history: maximum, minimum, and average records

The kit includes:

  • CO₂ monitor
  • USB cable
  • User manual and warranty card
Brand Levenhuk, Inc., USA
Warranty, years lifetime
EAN 4620137483222
Package size (LxWxH), cm 12.7x12.5x7.5
Usage location indoors
Type thermohygrometer
Built-in features thermometer, hygrometer, CO₂ monitor
Design tabletop, digital
Application for home use
=== Delimiter === Hygrometer (air humidity)
Units of measurement % (RH)
Measuring range 20% to 95%
Measurement resolution 1%
=== Delimiter === Thermometer (temperature)
Units of measurement °C, °F
Measuring range indoors 0…+50 °C (+32…+122 °F)
Measurement resolution 0.1 °C
=== Delimiter === General specifications
Screen type color
Number of screens 1
Power supply 5V, 500mA AC adapter (not included)
Body plastic
Lighting is available True
Illumination yes
Additional CO₂ measurement range: 400–5000md (ppm), CO₂ and humidity limits alerts

Returns Policy

We have a 14-day return policy. If you are not satisfied with your purchase, please return it in its original packaging and be sure to put the original product packaging inside the shipping box to avoid any damage..

All items must be in their original condition and unused. The value of your purchase will be refunded. .

Shipping charges will not be refunded.

If the return is due to a defective product, you may be compensated for the return shipping.

Please contact us for more details if you need to make a return..


- From 0 to 2 kg - shipping cost: 12,50 euros.

- From 2.001 kg to 30 kg - shipping cost: 17,00 euros.

- From 30,001 kg - shipping cost: 30,00 euros.

In case of collection at our warehouse or resale points - the shipping is free.

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