| Voltage AC/DC | AC/DC 24 V |
| Electrical connection | Terminals |
| Measured values | CO₂ |
| | Temperature |
| | Humidity |
| Output signal | 0...5 V |
| | 0...10 V |
| | 2...10 V |
| | MP-Bus |
| Measuring range CO₂ | Default setting: 0...2000 ppm |
| Measuring range humidity | Default setting: 0...100% RH |
| Measuring range temperature | 0...50°C [32...122°F] |
| Communication | MP-Bus |
| Output Voltage [Range] | 1 x 0...5 V, 0...10 V, 2...10 V, min. resistance 5 kΩ (Type 22RT-19-1) |
| | 2 x 0...5 V, 0...10 V, 2...10 V, min. resistance 5 kΩ (Type 22RTH-19-1) |
| | 3 x 0...5 V, 0...10 V, 2...10 V, min. resistance 5 kΩ (Type 22RTM-19-1) |
| Output signal active note | Output 0...5 V, 0...10 V (factory setting), 2...10 V selectable via NFC |
| Display type | LED |