SKU: 0577 0400
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The Testo 0577 0400 IAQ Data Logger is a stand-alone, long-term indoor air quality monitoring solution designed for use with the Testo 400 Universal IAQ Instrument. Ideal for extended measurement campaigns, this data logger enables continuous monitoring of all key IAQ and comfort parameters — including temperature, humidity, CO₂, CO, air velocity, turbulence, radiant heat, and illuminance.
Configurable directly via the Testo 400, the IAQ Data Logger records environmental conditions independently for up to two weeks, allowing the measuring instrument to be used simultaneously for other testing tasks. This makes it an efficient and flexible tool for professional HVAC engineers, facility technicians, and comfort specialists.
The logger supports up to six fixed cable probes simultaneously, enabling multi-point data collection for complex environments such as offices, laboratories, and cleanrooms. After the measurement, data can be easily transferred, analyzed, and documented via the Testo 400 interface or USB connection.
For accurate placement and stable mounting, a tripod accessory is available separately — ideal for comfort level and turbulence measurements as per EN ISO 7730 / ASHRAE 55 standards.
| Parameter | Specification |
|---|---|
| Product No. | 0577 0400 |
| Function | Stand-alone IAQ data logger for long-term measurements |
| Compatible With | Testo 400 Universal IAQ Instrument |
| Measurement Duration | Up to 2 weeks (stand-alone operation) |
| Connectable Probes | 4 × Digital (TUC/NTC), 2 × Thermocouple Type K |
| Measured Parameters | Temperature, Humidity, CO₂, CO, Air Velocity, Turbulence, Illuminance, Radiant Heat |
| Temperature (NTC) | -40 to +150 °C; Accuracy: ±0.2 to ±0.5 % of mv; Resolution: 0.1 °C |
| Temperature (Type K) | -200 to +1370 °C; Accuracy: ±(0.3 °C + 0.1 % of mv); Resolution: 0.1 °C |
| Memory | 360,000 readings / 1.5 MB |
| Interface | USB |
| Power Supply | External mains power adapter |
| Cable Length | 1 m |
| Dimensions (L × W × H) | 136 × 89 × 39 mm |
| Weight | 162 g |
| Material | Plastic |
| Protection Class | IP20 |
| Operating Temperature | -5 to +45 °C |
| Storage Temperature | -20 to +60 °C |
| Color | Black |
Data sheet testo 400 IAQ data logger
EU declaration of conformity IAQ data logger for long-term measurements
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Phone: 08 7083 9862
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