US-09-CO₂-03 indoor air quality meter, gas detector: CO₂, temperature, humidity – alarm for schools and offices
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| Product description | Description – why do you need a CO₂ meter in schools, kindergartens, administrative premises? A CO₂ meter is an important solution for maintaining a healthy and productive work and learning environment. When there is insufficient ventilation in places where people gather (e.g. classrooms or offices), CO₂ levels rise – which can cause fatigue, poor concentration, headaches, and when extremely high – even possibilities due to air quality. In educational institutions: students' attention and concentration are closely related to good air quality. CO₂ levels above 1000 ppm can significantly reduce learning efficiency. Kindergartens: younger children are particularly sensitive to poor air quality – the meter helps ensure a safe and comfortable environment. Offices / administrative premises: good ventilation, based on real data, improves work efficiency and well-being. Mechanism of operation: the meter tracks CO₂, temperature and humidity in real time – these are essential indicators that can quickly show when ventilation is necessary. The US-09-CO₂-03 air quality meter is a reliable solution that helps ensure a healthy and comfortable environment in schools, kindergartens, offices or homes. The device simultaneously measures carbon dioxide (CO₂) concentration (400–5000 ppm), temperature (−10 °C to +60 °C) and relative humidity (0–90% RH), and displays the data on a clear OLED display. The device has a two-level warning system: when reaching 1000 ppm (AL1), a yellow indicator turns on and a relay is triggered, which can automatically turn on ventilation. When exceeding 1500 ppm (AL2), a red indicator lights up, a second relay is triggered, and an additional audible signal warns of a critical situation. Thanks to automatic relay outputs, the device can control ventilation or alarm systems, so it works not only as a meter, but also as a smart air quality control tool. LED indicators (green, yellow, red) and an audible alarm allow you to quickly assess the situation. Using this device, customers achieve real results - cleaner air, better well-being, increased work efficiency and a safer environment for both children and adults. |
| Purpose | The US-09-CO₂-03 Air Quality Meter is designed to ensure that premises are safe, healthy and well ventilated. It: Measures CO₂ concentration, temperature and relative humidity in real time, Supports alarm signaling (audible and visual) when the alarm level is set, Has relay outputs that can automatically turn on ventilation or other equipment in response to changes in air quality |
| Controlled environment | Carbon dioxide CO2, temperature, relative humidity. |
| work environment | US-09-CO₂-03 is perfect for use in: Schools and kindergartens – in group, compressed spaces where CO₂ accumulates quickly. Administrative/office premises – where it is important to maintain employee alertness and efficiency. Domestic and industrial premises – in various areas where accurate monitoring of the indoor microclimate is necessary. |
| Temperature measurement range | (-10...+60)oC |
| Relative humidity measurement range, RH | (0...90) % |
| Sighting range | (400...5000) ppm |
| First navy level | 1000 ppm |
| second emergency level | 1500 ppm |
| audible signalling | yes |
| data rendering | yes |
| Light indication | yes |
| relay exit | 10A, 230V AC; 10A,30V DC SPDT |
| Power voltage | 12V, 1A ; DC |
