Testo 174 H BT Temperature and Humidity Data Logger 0572 1743 01

The Testo 174 H BT stands out with its dual measurement of temperature and humidity in a compact logger, paired with Bluetooth Low Energy for wireless data access via the Testo 174 App. Unlike many loggers that require a physical connection for readout, this model allows you to monitor and export data directly from a mobile device, streamlining your workflow.

Highlights

• Measures temperature from -20 to +70 °C and relative humidity from 0 to 100 %RH
• Bluetooth Low Energy interface for wireless data transfer to the Testo 174 App
• Large memory for 16,000 readings (8,000 per channel)
• Adjustable logging interval from 1 minute to 24 hours
• Long battery life of up to one year with two CR2032 cells

In daily use

The logger is suited for monitoring ambient conditions in storage rooms, offices, and other indoor environments. Its LCD shows current readings and status at a glance, while the IP20 rating indicates use in protected indoor areas. Data can be retrieved via Bluetooth or through an optional USB docking station for PC connection with Testo ComSoft Basic software.

Full specifications

• Temperature measuring range: -20 to +70 °C
• Temperature accuracy: ±0.5 °C
• Humidity measuring range: 0 to 100 %RH (non-condensing)
• Humidity accuracy: ±3 %RH (2 to 98 %RH) at +25 °C
• Resolution: 0.1 °C / 0.1 %RH
• Memory: 16,000 measurement values
• Logging interval: 1 min to 24 h
• Battery: 2 x CR2032 lithium button cells
• Battery life: 1 year (at 15 min measurement cycle, +25 °C)
• Interface: Bluetooth Low Energy, USB via optional docking station
• Display: LCD
• Protection class: IP20
• Operating temperature: -20 to +70 °C

Final note

With its wireless connectivity and dual-channel logging, the Testo 174 H BT is a practical choice for reliable indoor climate monitoring.