testo 174 H - Mini data logger for temperature and humidity with USB-C and PC software

Reliable Climate Monitoring for Storage, Transport and Indoor Environments

The testo 174 H is a compact temperature and humidity data logger that automatically records climate conditions. It helps verify that environments stay within safe limits across storage, transport, and indoor spaces. Small and discreet, it’s ideal for long-term monitoring of sensitive goods, rooms, archives and laboratories.

Keep Sensitive Goods Protected with Continuous Data Logging

Continuous measurement helps detect issues before they become costly. The testo 174 H tracks temperature and humidity over time, ensuring storage areas, cabinets or transport routes remain compliant. Ideal for food, pharmaceuticals, electronics and archives, it provides reliable data for quality control and reporting.

Compact Design for Flexible Placement

Its mini format allows placement in tight spaces such as cabinets, packaging or storage boxes. Suitable for both stationary and mobile use, it enables reliable monitoring without disrupting operations.

Key Technical Features

Measures temperature and humidity
Integrated NTC temperature sensor
Capacitive humidity sensor
Compact design
Large memory capacity
Long-term monitoring
Easy data transfer via software and USB
Accessories available
Suitable for storage, transport and workspaces

Simple Documentation for Quality Assurance

Stores measurement data for easy analysis and reporting. Using testo software and USB connection, data can be transferred to a PC for audits, compliance and internal reviews. Compatible accessories support efficient data management.

Monitor Humidity to Prevent Damage and Product Loss

Tracks humidity alongside temperature to detect conditions that could damage goods. Ideal for documents, electronics, museums and storage areas, helping prevent mould, corrosion and degradation.

Easy to Use for Everyday Climate Checks

Simple to install and operate, with automatic recording. Ideal for routine checks across multiple locations, with several loggers easily used together for wider monitoring.

A Practical Mini Data Logger for Temperature and Humidity Monitoring

The testo 174 H delivers reliable, accurate monitoring in a compact format - helping protect goods, ensure compliance and improve environmental control across your operation.

Temperature - NTC

Temperature - NTC	Measuring range -20 to +70 °C
	Accuracy ±0.5 °C (-20 to +70 °C)
	Resolution 0.1 °C

Humidity - Capacitive

Humidity - Capacitive	Measuring range 0 to 100 %RH*
	Accuracy ±3 %RH (2 to 98 %RH) ±0.03 %RH/K
	Resolution 0.1 %RH
* Not for condensing atmospheres.

General technical data

General technical data	Weight 35 g
	Dimensions 60 x 38 x 18.5 mm
	Operating temperature -20 to +70 °C
	Product-/housing material Plastic
	Protection class IP20
	Channels 2 internal
	Product colour Black
	Measuring rate 1 min - 24 h
	Battery life 1 year (15 min measuring cycle, +25 °C)
	Battery type 2 lithium batteries (CR2032)
	Memory 16,000 measurement value pairs (16,000T + 16,000H)
	Storage temperature -40 to +70 °C

testo 174 H mini temperature and humidity data logger including wall bracket, battery (2 x CR2032 lithium), USB 2.0 data transfer cable and test report.

Accessories

: 0554 1704

ComSoft Professional v4.6 - software

Professional software for programming and readout of Testo data loggers and for archiving data

£ 380.00 £ 456.00

: 0515 5174

Lithium battery CR2032 button cell

Button cell battery (CR2032, lithium)

: 0572 0580

testo ComSoft Basic v6.0 - Logger software

Programme and read out Testo data loggers using the basic software

testo 174 H - Mini data logger for temperature and humidity with USB-C and PC Software.