Description
The 56-RTR-576-S is TandD’s specialized air quality logger — measuring carbon dioxide concentration (CO₂), temperature, and humidity in a single unit, featuring high-precision sensors for T/RH that provide a wider measuring range and better accuracy than the standard model.
Designed for workplaces, classrooms, conference rooms, healthcare facilities, and indoor climate monitoring where elevated CO₂ levels can indicate insufficient ventilation and affect concentration, drowsiness, and well-being. The built-in automatic calibration function ensures reliable measurements over long operating cycles without manual adjustment. The measuring range of 0–9,999 ppm covers both normal office environments (~400–1000 ppm) and critical thresholds (1000 ppm = fatigue, 2000 ppm = significant discomfort).
Features
- Measures CO₂, temperature, and humidity simultaneously in 3 channels
- CO₂ measuring range: 0 to 9,999 ppm
- Automatic calibration — maintains accuracy over time
- S-model: temperature -25 to +70 °C, humidity 0 to 99 %RH
- T/RH accuracy: ±0.3 °C / ±2.5 %RH (at 15–35 °C, 30–80 %RH)
- Wireless range approx. 150 meters line of sight
- Memory for 8,000 data points
- 15 fixed logging intervals: 1–60 sec or 1–60 min
- Built-in LCD with alternating display of all 3 channels
- Bluetooth 4.2 BLE for configuration via mobile app
Specification
| Measuring channels | CO₂, Temperature, Humidity — 1 channel each |
|---|---|
| CO₂ measuring range | 0 to 9,999 ppm |
| Temperature measuring range | -25 to +70 °C (S-model) |
| Humidity measuring range | 0 to 99 %RH (S-model) |
| T/RH accuracy | ±0.3 °C / ±2.5 %RH (at 15–35 °C, 30–80 %RH) |
| Special function | Automatic CO₂ calibration |
| Logging capacity | 8,000 data points |
| Wireless communication | EU: 869.7–870 MHz, RF power 5 mW, range approx. 150 m |
| Power supply | Lithium battery LS14250 × 1 |
| Battery life | Approx. 10 months |
| Compatible base units | 56-RTR500BC, 56-RTR500BW, 56-RTR500BM (each RTR-576 counts as 2 registrations) |
Applications
The 56-RTR-576-S is selected for indoor climate and workplace monitoring where CO₂ is a critical parameter: schools and classrooms (elevated CO₂ linked to reduced learning), offices and conference rooms, healthcare facilities and hospitals, ventilation system monitoring, greenhouses with controlled CO₂ atmospheres, and vehicle test environments. Also useful in the food industry (fermentation processes, cold storage with controlled atmospheres). For light and UV measurement instead of CO₂, see the 56-RTR-574-S. For continuous CO₂ monitoring without a wireless base unit, see the 56-TR-76UI (USB connection to PC).
