Eco - Temperature, Humidity and CO₂ Monitor

Indoor CO2 Monitor for Offices, Schools and Healthcare Facilities

The Clear The Air Eco (CTA-ECO) is an indoor CO2 monitor measuring eCO2, temperature and humidity in real time. Designed for offices, schools, healthcare facilities and commercial buildings across the UK and Europe, it delivers continuous air quality monitoring with instant alerts and a full compliance audit trail, with no WiFi required and up to 3 years battery life.

What is a CO2 Monitor

A CO2 monitor measures carbon dioxide concentration in the air, the single most reliable indicator of poor ventilation. When levels rise above 1,000ppm, cognitive performance measurably declines. Above 2,000ppm occupants experience fatigue, headaches and reduced concentration. Most buildings have no idea what their carbon dioxide levels are. The CTA-ECO changes that, monitoring eCO2 alongside temperature and humidity simultaneously so you get a complete picture of indoor environmental conditions from one device.

What It Monitors

The CTA-ECO measures eCO2 from 400 to 65,000ppm, temperature from -40°C to +125°C and humidity from 0-100% RH. Motion detection is included with a 110° angle and 5m range. Readings are taken every 15 minutes and transmitted every 2 hours.

Who Uses It

Facilities managers in offices and commercial buildings use it to monitor meeting rooms, open plan areas and reception spaces, with real-time visibility and automatic ventilation alerts across every space from one dashboard. Schools and multi-academy trusts use it to meet DfE ventilation guidance across every site without WiFi infrastructure or IT involvement, deploying in minutes and monitoring continuously. Hospitals, GP surgeries and care homes use it for infection control and patient safety, with a full audit trail for CQC inspections. Hotels, restaurants and venues use it to demonstrate safe indoor air quality for staff and guests and meet environmental health compliance requirements.

Built for Compliance

Every reading is automatically logged with timestamp and location, giving you the audit trail required for HSE, CQC and DfE inspections. No spreadsheets, no manual records, no gaps in your monitoring history.

Key Features

No WiFi required and no IT involvement needed. Simply place the device, activate it and it monitors continuously. Industrial-grade sensors deliver reliable readings over time, unlike consumer-grade components that drift and give inaccurate data. At 84 x 84 x 33mm it sits on any wall or surface without drawing attention. All devices are managed through the Clear The Air web platform and mobile app, with custom threshold alerts, historical data and exportable compliance reports included. API integration is available for building management systems and third-party software.