Tilswall

Tilswall 3-in-1 Indoor Air Quality Monitor Portable CO2 Monitor

$35.99

High-Precision CO₂ Sensor

Equipped with an advanced semiconductor sensor for stable, accurate real-time carbon dioxide measurement.

3-in-1 Air Quality Monitor

Large LCD display clearly shows CO₂ concentration, temperature, and humidity at the same time.

Accurate Measurement with Air Convection Design

Optimized airflow circulation improves accuracy, with a wide measuring range from 400 to 5000 ppm.

Smart Color-Coded Air Quality Indicator

4-color LED ring instantly displays air quality levels: Green (0–799 ppm), Light Green (800–1199 ppm), Orange (1200–1599 ppm), Red (1600–1999 ppm); all colors flash when exceeding 2000 ppm.

Energy-Efficient & Long-Lasting

Designed for low power consumption, strong anti-interference performance, and long service life for continuous monitoring.

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FAQs

Frequently Asked Questions You May Have

Do Tilswall offer free shipping?

Tilswall offers free shipping within the United States on orders over $29.99. Orders under $29.99 will incur a standard shipping fee of $7.99.

How long will it take my order to process for shipment?

Standard domestic orders may take up to 3 business days (excluding Saturdays, Sundays, and Holidays) to process.

Experiencing any issues with the products?

Please don't hesitate to reach out to our dedicated support team atsupport@tilswall.com. We're here to help!