Levenhuk Wezzer PLUS LP90 CO2-meter

The Levenhuk Wezzer PLUS LP90 CO2 Meter is a professional-grade air quality monitor designed for accurate measurement of carbon dioxide levels, temperature, and humidity. Featuring a high-precision NDIR sensor, it provides reliable CO2 readings from 400 to 5000 ppm with color-coded LED indicators for quick assessment. Ideal for offices, classrooms, homes, and greenhouses, this device helps maintain healthy indoor environments.

Advantages

Equipped with a built-in rechargeable battery offering up to 8 hours of operation, the LP90 ensures continuous monitoring without frequent recharging. The USB-C interface allows convenient charging from any standard USB power source. Its compact design and clear LCD display with backlight make it easy to read in any lighting condition. The audible alarm can be user-configured to alert when CO2 levels exceed safe thresholds.

Suitable for

• Office spaces to monitor ventilation and occupant comfort
• Classrooms and educational facilities for optimal learning conditions
• Homes, especially bedrooms and living areas for health-conscious families
• Greenhouses and indoor gardens to ensure proper CO2 levels for plant growth
• Workshops and laboratories where air quality is critical

Key specifications

• CO2 measurement range: 400–5000 ppm
• CO2 accuracy: ±50 ppm + 5% (400-2000 ppm)
• Temperature measurement range: -10°C to +50°C (14°F to 122°F)
• Temperature accuracy: ±1°C
• Humidity measurement range: 0% to 99% RH
• Humidity accuracy: ±5% RH
• Display: Digital LCD with backlight
• CO2 level indicator: Color-coded LED (Green/Yellow/Red)
• Audible alarm: Yes, user-configurable
• Power source: Built-in 2000 mAh Li-ion battery
• Charging interface: USB-C
• Battery life: Up to 8 hours
• Operating temperature: -10°C to +50°C
• Operating humidity: 0% to 95% RH (non-condensing)
• Material: ABS Plastic

Recommendations

For optimal performance, place the meter in a well-ventilated area away from direct sunlight and heat sources. Calibrate periodically according to the manual. Use the USB-C cable provided for charging; avoid using third-party chargers that may not meet specifications.