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Data Sheet | Instruction Manual
Testo 174 H Black Mini Temperature and Humidity Data Logger with USB-C
The Testo 174 H black mini climate data logger is a compact, dual-channel measurement instrument engineered for continuous temperature and humidity monitoring in HVAC/R inspection, storage facilities, archives, and indoor work environments. Featuring an internal memory for 16,000 readings per channel, this technical logger tracks environmental baselines within a range from -20 °C to +70 °C and 0 to 100 %RH. Data synchronization is managed via a standard USB-C configuration interface, connecting directly to the ComSoft Basic software for rapid processing, evaluation, and structured Excel export reporting. An automatic data backup routine ensures measurement preservation even during full battery depletion or maintenance updates.
Industrial & Logistics Applications
- HVAC/R Commissioning & Fault Diagnosis: Efficient tracking of ambient climate variables to validate heating, ventilation, and refrigeration line layouts.
- HACCP Warehouse Auditing: High-precision environmental tracking for climate-sensitive goods, food logistics, and distribution networks.
- Archive and Museum Preservation: Long-term indoor microclimate mapping to protect paper, art installations, and organic storage items from thermal and moisture shifts.
Technical Characteristics
| Measurement Channels | 2 internal sensors: NTC thermistor and capacitive humidity sensor |
| Temperature Measuring Scale | -20 to +70 °C reach |
| Humidity Measuring Scale | 0 to 100 %RH (non-condensing atmospheres) |
| Core Thermal Accuracy | ±0.5 °C (-20 to +70 °C) with 0.1 °C display resolution scaling |
| Core Humidity Accuracy | ±3 %RH (within 2 to 98 %RH threshold limits); ±0.03 %RH/K stability |
| Internal Reading Memory | Standalone non-volatile data chip holding up to 16,000 measurement value pairs |
| Sampling Log Cycles | User-configurable cycle adjustments from 1 minute to 24 hours |
| Hardware Protection Class | Compact plastic housing meeting IP20 ingress resistance rules |
| Power Supply Autonomy | 2x Lithium CR2032 cells providing a 1-year field life (at 15 min measuring cycles) |
| Dimensions, Color & Weight | Pocket black frame tracking 60 x 38 x 18.5 mm; total payload weight 35 g |
Package Contents
- Testo 174 H black mini climate data logger module
- Wall bracket assembly support
- 2x Lithium CR2032 batteries and factory validation protocol log