Description
The Testo 176 H1 is a four-channel data logger that records temperature and relative humidity through external probes connected to its rugged IP65 housing. It stores up to 2,000,000 readings, shows the current value on a large display and transfers data by USB or an optional SD card. Quality managers, HVAC specialists and laboratory staff use it for long-term climate monitoring in storage areas, clean rooms, museums and production spaces, including environments where 21 CFR Part 11 compliant records are required.
Key features
- Four external sensor channels for humidity and NTC temperature probes
- Memory for 2,000,000 measured values with password protection via ComSoft software
- Data readout through USB or an optional SD card
- Large display shows the current reading at a glance
- IP65 housing for use in demanding environments
- Long-life lithium battery rated for up to 8 years at a 15-minute interval
Typical applications
- Warehouse and cold storage climate monitoring
- Pharmaceutical and food quality documentation
- Clean room and laboratory environment logging
- Archive, museum and library conservation
Specifications
| Brand | Testo |
|---|---|
| Model | 176 H1 |
| Product type | Temperature and humidity data logger |
| Channels | 4 external |
| Temperature range (NTC) | -20 to 70 °C (-4 to 158 °F) |
| Temperature accuracy | ±0.2 °C (-20 to 70 °C), ±0.4 °C remaining range |
| Humidity range | 0 to 100 %RH (capacitive) |
| Resolution | 0.1 °C / 0.1 %RH |
| Memory | 2,000,000 readings |
| Protection class | IP65 |
| Battery | 1 x lithium (TL-5903), up to 8 years at 15 min rate |
| Operating temperature | -20 to 70 °C |
| Storage temperature | -40 to 85 °C |
| Dimensions | 103 x 63 x 33 mm |
What’s included
- Testo 176 H1 data logger
- Batteries
- Certificate of conformity





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