--- product_id: 643511118 title: "WL1028 Co2 Meter Indoor Air Quality Monitoring Recommendation Based on CO2 Concentration in the Air, Adjustable Alarms, CO2 History, for Schools, Hotels, Offices" brand: "technoline" price: "$156.52" currency: USD in_stock: true url: https://www.desertcart.us/products/643511118-wl1028-co2-meter-indoor-air-quality-monitoring-recommendation-based-on store_origin: US region: United States of America --- # 24h CO2 history chart Adjustable CO2 alarms 5000 ppm CO2 range WL1028 Co2 Meter Indoor Air Quality Monitoring Recommendation Based on CO2 Concentration in the Air, Adjustable Alarms, CO2 History, for Schools, Hotels, Offices **Brand:** technoline **Price:** $156.52 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your air game — because fresh air is the new luxury. ## Quick Answers - **What is this?** WL1028 Co2 Meter Indoor Air Quality Monitoring Recommendation Based on CO2 Concentration in the Air, Adjustable Alarms, CO2 History, for Schools, Hotels, Offices by technoline - **How much does it cost?** $156.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/643511118-wl1028-co2-meter-indoor-air-quality-monitoring-recommendation-based-on) ## Best For - technoline enthusiasts ## Why This Product - Trusted technoline brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Portable & Power-Ready:** Built-in rechargeable battery offers 20 hours of cordless use, with USB mains power for continuous operation. - • **Data-Driven Ventilation:** Color-coded display and 24-hour CO2 history empower proactive air quality management. - • **Multi-Parameter Monitoring:** Track temperature, humidity, and CO2 simultaneously for a comprehensive indoor environment snapshot. - • **Breathe Smarter, Work Better:** Real-time CO2 monitoring with ultra-precise sensor up to 5000 ppm keeps your indoor air optimal. - • **Custom Alerts for Peace of Mind:** Set personalized alarms for high or low CO2 levels to never miss critical air quality changes. ## Overview The Technoline WL1028 is a professional-grade indoor CO2 meter designed for schools, offices, and hotels. It features a high-accuracy sensor measuring CO2 levels from 400 to 5000 ppm, with a color-coded display offering ventilation recommendations. The device logs 24 hours of CO2 data, supports adjustable alarms, and monitors temperature and humidity. Powered via USB with a built-in rechargeable battery backup, it ensures continuous air quality monitoring to promote healthier indoor environments. ## Description Breathe healthy and happy. Many people attach great importance to healthy eating and drinking enough, but often forget the most important basic function of the body: breathing. An adult person drinks an average of 3 litres of liquid a day and can do without water for up to 3 days, but in comparison an average of 15 kilograms of air is inhaled and without oxygen, the body would only last 3 minutes. Also, more and more diseases with poor air quality and high concentrations of volatile, organic compounds (VOCs) are being circulated. Almost all furnishings, electrical appliances, chemical detergents, food preparation and people themselves can quickly achieve an unhealthy level of VOCs in enclosed spaces. With the WL 1028 air quality monitor, you can quickly and easily ensure more health and well-being through better indoor air. What can you see from the display? Battery end indicator - Time display - Snooze symbol - MIN/MAX symbols - Temperature display - Ventilation recommendation icon - CO2 bar chart - History of CO2 - Coloured air quality symbols - Alarm symbol - AM symbol - CO2 alarm symbol - Air quality chart - CO2 alarm symbol 2 display 2 display - Warning symbol - humidity display functions: Displays time, CO2 concentration, temperature and humidity - Multi-coloured display of air quality - The 24-hour history bar chart of the measured CO2 concentration - Backlight function with 4 brightness levels (high - medium - low - off) - Energy display and charging indicator of the built-in lithium battery - 12/24 hour time Display of temperature Unit selectable in °C /°F - Alarm function for CO2 concentration - Manual base value calibration and automatic base value calibration for CO2 concentration - Recording of maximum and minimum values of temperature, humidity and CO2 concentration - Table or wall mount Technical data - CO2 measuring range: 400 – 5000 PPM - Resolution : 1 PPM - Accuracy: +/- 8% + 80 PPM (from 400 to 2000 PPM) - Warm-up time: 60 seconds - Detection frequency: 5 seconds Temperature - Measuring range: -9.9°C to 49.9°C / 14°F to 122°F - Resolution: 0.1°C / 0.1°F Accuracy: +/- 1.5°C / 2.7°C The CapCapture Frequency: 5 seconds relative humidity measuring range: 1% - 99% resolution: 1% accuracy: +/-5% for 40% ~ 80%; - +/-8% outside these ranges detection frequency: 5 seconds operating temperature: 0°C to 50°C / 32°F to 122°F, <95% RH non-condensing. Power supply : USB cable Power supply included), which supports charging with DC 5.0 V (DC) 600 mA ## Features - Co2 meter for monitoring indoor air quality in enclosed rooms - Powerful CO2 sensor with measuring range of up to 5000 ppm - Ventilation recommendation based on the CO2 concentration in the air (coloured display elements) - CO2 history up to 24 hours (chart) - Alarms adjustable for too high or too low ppm values (optionally actual) - USB cable included - Integrated battery (fully charged for approx. 20 hours ready for use) - It is recommended to supply the device mainly with mains power and use the built-in lithium battery as a backup only if necessary. - The WL1028 measures and displays CO2 content in PPM with coloured ventilation recommendations. ## Product Details - **Brand:** Technoline - **Style:** Modern - **Power source:** Battery Powered - **Product dimensions:** 1.6D x 7.9W x 5.1H centimeters - **Item weight:** 0.35 Kilograms ## Images ![WL1028 Co2 Meter Indoor Air Quality Monitoring Recommendation Based on CO2 Concentration in the Air, Adjustable Alarms, CO2 History, for Schools, Hotels, Offices - Image 1](https://m.media-amazon.com/images/I/61afJ5R82FL.jpg) ## Frequently Bought Together - Technoline WL1028 Co2 Meter - VBR-100 PAR Meter 6000umol/(㎡s),Red and Blue Light Seperate PAR,DLI Calculator,PPFD Distribution Record - CO2Bag For vigorous plant growth - improves taste, colour and yield of the crop - compact, maintenance-free and safe - perfect for greenhouses up to 10 m² --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/643511118-wl1028-co2-meter-indoor-air-quality-monitoring-recommendation-based-on](https://www.desertcart.us/products/643511118-wl1028-co2-meter-indoor-air-quality-monitoring-recommendation-based-on) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*