Temperature and humidity mini data logger Testo 174 H

Datasheet PDF | Instruction Manual PDF

Description

The compact Testo 174 H temperature and humidity mini data logger is a professional and cost-effective solution engineered for discrete microclimate monitoring inside commercial facilities, archives, and residential real estate. Outfitted with an integrated high-precision NTC air temperature probe and a long-life capacitive relative humidity sensor, this 2-channel instrument delivers continuous and certified trace profiling. Its large memory sector securely stores up to 16,000 measurement values, backed by an efficient circuit design providing a 1-year battery lifecycle. The clear LCD panel yields immediate status feedback, showing current environmental data alongside direct threshold violation icons. System configuration and reporting are managed via the free ComSoft Basic software setup.

Industry Applications

• Facility Management & Building Audits: Conducting discreet multi-point checks inside commercial real estate or rented apartments to track dampness risks, insulation performance, and ventilation patterns.
• Museums, Galleries & Archives Preservation: Monitoring ambient temperature and relative humidity trends to safeguard sensitive paper assets, historic documents, and metal pieces from surface rust.
• Food Logistics & Operations: Executing baseline environmental auditing in ambient transit and non-condensing storage spaces.

Technical Parameters

• Measurement Channels: 2 internal channels (Air temperature and relative humidity)
• Temperature Sensor Type: NTC
• Temperature Measuring Range: -20 to +70 C
• Temperature Measurement Accuracy: +-0.5 C (-20 to +70 C)
• Humidity Sensor Type: Longlife capacitive sensor
• Humidity Measuring Range: 0 to 100 %RH (Not for condensing environments)
• Humidity Measurement Accuracy: +-3 %RH (2 to +98 %RH) at +25 C; +-0.03 %RH/K
• Data Resolution Profile: 0.1 C / 0.1 %RH
• Memory Storage Capacity: 16,000 measuring values
• Sampling Log Rate: Fully programmable from 1 min up to 24 h
• Protection Rating Class: IP20
• Battery Setup & Lifespan: 2 x 3V button cells (CR 2032); up to 1 year operational life (15 min cycle at +25 C)
• Dimensions & Weight: 60 x 38 x 18.5 mm; 34 g

Package Content

• Testo 174 H temperature and humidity mini data logger
• Wall bracket assembly
• 2 x CR 2032 lithium batteries
• Calibration protocol

Note: A matching Testo USB interface docking station is strictly required to program and read out this mini data logger (available separately or in starter kits).