Temperature and humidity

Assessing thermal comfort levels on the basis of air temperature and relative humidity parameters is important when planning, choosing and setting heating and ventilation systems. Recommendations for the relative air humidity in a room fall within a range of a minimum of 30 % up to a maximum value of 65 % relative humidity, with the sultriness limit being undershot or overshot outside this range.

24 products or recommendations for Temperature and humidity
  • testo 610 - Pocket-sized air humidity measuring instrument

    Order-Nr. 0560 0610

    The handy testo 610 thermohygrometer allows for measurement of temperature and humidity in indoor areas. In addition, this compact instrument can also calculate the dew point and the wet bulb temperature.
    • Long term stable Testo humidity sensor

    • +/-2.5% RH accuracy

    • Dewpoint calculation and wet bulb included

    • Protective cap for safe storage

  • testo 625 - Thermohygrometer

    Order-Nr. 0563 6251

    The testo 625 thermohygrometer comes into its own in all situations where the right indoor climate is crucial, like in archives, storerooms, buildings, and greenhouses. Calculates the dew point and wet bulb temperature quickly and accurately.
    • Measures air temperature / RH

    • Calculates dew point / wet bulb temperature

    • Displays min/max values, hold function, power off mode

    • Integrated long-life humidity sensor for long lasting quality

  • testo 174H - Mini temperature and humidity data logger

    Order-Nr. 0572 6560

    The testo 174H mini temperature and humidity data logger features a large display and alarm indication that makes it capable of monitoring air temperature and relative humidity levels at all times. This temperature and RH measurement logger is long lasting for continuous use and is highly accurate. The 174H temperature and humidity data logger has free software available as a download for easy analysis.
     
    **Requires USB interface for programming and data transfer (0572 0500) or select starter kit with interface included**
    • Provides reliable and economical temperature and humidity monitoring of products in storage and transport

    • Large easy to read display

    • Large measurement data memory capable of storing 16,000 temperature and humidity readings

    • Longlife NTC thermistor temperature and humidity sensor for reliable and accurate measurements

  • testo 608-H1 - Thermal hygrometer

    Order-Nr. 0560 6081

    The testo 608-H1 thermal hygrometer enables you to have a continuous display of the current temperature and humidity values. This means you can always keep an eye on the indoor climate.
    • With dew point calculation and max/min display

    • Humidity sensor is not affected by condensation

    • Large, clear display

    • Durable quality: capacitive humidity sensor with long term stability for many years of measurement

  • testo 175H1 - Temperature and humidity data logger

    Order-Nr. 0572 1754

    The testo 175H1 temperature and humidity data logger features a large display and alarm indication that makes it ideal for continuous monitoring of ambient temperature and humidty. The 175H1 has an external, stub type humidity sensor, making it best-suited for use in high humidity areas. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.
    • Internal NTC thermistor provides reliable temperature monitoring with a small footprint

    • External “stump” humidity probe for quick, accurate measurements

    • Large easy to read backlit display

    • Large data memory capable of storing 1,000,000 measurements

  • testo Smart Probes AC & Refrigeration Test & Load kit

    Order-Nr. 0563 0009

    For refrigeration engineers: The kit contains two testo 549i high-pressure gauges, two testo 605i thermohygrometers and two testo 115i clamp thermometers. Used in conjunction with your smartphone/tablet, the kit is ideal for servicing, troubleshooting and installing air conditioning and refrigeration systems. The testo Smart Probes App makes your work easier and more efficient: over 90 stored refrigerants, automatic calculation of superheating/subcooling, target superheat and cooling/heating load, emailing of measurement data reports as PDF or Excel files.
    • Application-specific measurement menus for superheating/subcooling, target superheat, heating/cooling power

    • More than 90 common refrigerants plus refrigerant updates in the testo Smart Probes App

    • 350 ft Bluetooth® range for particularly flexible applications

    • Transmission and analysis of measurement data via testo Smart Probes App

  • testo 174 H - Mini temperature and humidity data logger kit

    Order-Nr. 0572 0566

    The testo 174H mini temperature and humidity data logger has a large display and alarm indication that makes it capable of monitoring air temperature and relative humidity levels at all times. This temperature and RH measurement logger is long lasting for continuous use and has a high accuracy. The 174H mini temperature and humidity data logger kit includes a USB interface for data transfer and has free software available as a download for easy analysis.
    • Simple and large easy to read display

    • Includes USB interface for data transfer

    • Large measurement data memory capable of storing 16,000 temperature and humidity readings

    • Longlife NTC thermistor temperature and humidity sensor for reliable and accurate measurements

  • testo 608-H2 - Thermal hygrometer

    Order-Nr. 0560 6082

    The testo 608-H2 thermal hygrometer measures air temperature, humidity, and dew point, and has a large, easy to read display and a visual alarm that is activated when a threshold is exceeded.
    • Measures and displays temperature and humidity

    • Calculates and displays the dew point

    • LED alarm is activated when thresholds are exceeded

    • Long-lasting quality: long-time stable humidity sensor guarantees years of measuring

  • testo Smart Probes HVAC/R Complete kit

    Order-Nr. 0563 0007

    Complete kit for all-round engineers in the field of heating, air conditioning, refrigeration and ventilation: The kit contains all the testo Smart Probes and is ideal for carrying out functional checks or for plant maintenance, in conjunction with your smartphone/tablet. The testo Smart Probes App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating load, differential temperature or mold indication. Measurement data reports can be emailed directly as a PDF or Excel file.

    **NOTE** The testo 115i, 549i, and 605i Smart Probes now have an extended Bluetooth range of up to 350 Feet!**
    • For all measurements involving heating, air-conditioning, refrigeration and ventilation systems

    • All Smart Probes for temperature, pressure, humidity and flow in one kit

    • Display of measurement data progression as a graph or table

    • Transmission and analysis of measurement data via testo Smart Probes App

  • testo Smart Probes VAC Set - Wireless Smart Probe Kit

    Order-Nr. 0563 0003

    The testo VAC Smart Probe Set provides a combination of four Smart Probe instruments, used with your smartphone or tablet to test and balance multi-outlet ventilation systems.  Two types of anemometers give you the capacity to measure in-duct air flow, and the flow from each vent.  Using the IR temperature probe for surface temperatures will show you motor and electrical equipment conditions, also allowing for easy checking of each outlet.  Lastly, the thermohygrometer provides an assessment of the humidity and dewpoint levels throughout the system.
    • Measures air velocity, temperature, relative humidity, wet bulb / dew point, and calculates volume flow

    • Kit includes instruments to measure, balance, troubleshoot, and optimize ventilation systems performance

    • RH & air flow measurements in-duct and at registers, viewed simultaneously in the testo Smart Probes app (405i, 410i, 605i)

    • App calculates system enthalpy with air flow & RH probes; app allows you to photograph objects with a smart device, capturing measurement marker and temperature values for reference and reporting (805i)

  • testo Smart Probes VAC kit

    Order-Nr. 0563 0003 10

    For air-conditioning engineers: Compact kit containing four measuring instruments for your most important measuring tasks in, on and involving air conditioning systems. The testo Smart Probes App enables you to work more easily and efficiently: Use intuitive measurement menus for volume flow measurement, for automatic calculation of the dew point and wet bulb temperature or for detecting areas susceptible to mould according to the traffic light principle. Measurement data reports can be emailed directly as a PDF or Excel file.
    • Measurement of air and surface temperature, humidity, air velocity and volume flow

    • Measurement menus for volume flow measurement in ducts and at outlets, identification of mould risk, easy image documentation including IR temperature reading and measurement spot marking

    • Display measurement data as a graph or table and analyze and send via testo Smart Probes App

    • In conjunction with your smartphone/tablet, carry out the most important measurements involved in air conditioning systems

  • testo 606-2 - Moisture meter

    Order-Nr. 0560 6062

    The testo 606-2 moisture meter measures the moisture content in wood, building materials, and the surrounding environment. This allows you to check storage and drying conditions quickly and easily.
    • Ram electrodes guarantee precise moisture measurements in wood / building materials

    • Ideal for carrying out RH / air temperature measurements for checking storage and drying

    • Identifying and preventing problems using dew point / wet bulb calculations

    • Easy to use / backlit display for all lighting conditions

  • testo 605i - Thermohygrometer operated via smartphone

    Order-Nr. 0560 2605 03

    The compact testo 605i temperature and humidity measuring instrument with bendable probe head features professional measuring technology in an intelligent format: it can be used in conjunction with a smartphone/tablet and the testo Smart Probes App to reliably measure air temperature and humidity in rooms and ducts.
    • Measurement of air humidity and temperature in rooms and ducts

    • Automatic calculation of the dew point and wet bulb temperature via testo Smart Probes App

    • Measurement data analyzed and sent via testo Smart Probes App

    • Problem-free application at measuring points that are a long distance apart thanks to Bluetooth® range up to 350 ft.

  • testo 605i - Thermo-hygrometer wireless Smart Probe

    Order-Nr. 0560 1605

    The testo 605i Smart Probe is a humidity and temperature measuring instrument that quickly and accurately measures relative humidity, dew point, and temperature in rooms, ducts, registers, and environmental boxes and chambers.
    • Quickly and accurately measures relative humidity and temperature in rooms, ducts, and chambers

    • Automatically calculates dew point and wet bulb temperature

    • Small diameter probe is ideal for in-duct measurements

    • For all HVAC/R technicians and contractors

  • testo 622 - Thermohygrometer and barometer

    Order-Nr. 0560 6220

    The testo 622 thermohygrometer and barometer is designed to provide you with an at-a-glance look at the air temperature, pressure, and RH. Ideal for monitoring the ambient air, especially in laboratories during calibration and experimental setups.
    • Measures air temperature / pressure / RH

    • Ideal for monitoring the air, especially in laboratories

    • Alarm alerts when threshold is exceeded

    • Table or wall mount

  • testo 605-H1 - Compact thermal hygrometer

    Order-Nr. 0560 6053

    The testo 605-H1 thermal hygrometer is capable of precise measurements of air humidity and air temperature, as well as calculations of dewpoint temperature. The testo 605-H1 is ideally suited for duct measurements, due to its slim form factor and ability to be read from multiple angles, with a rotatable probe.
    • Slim form factor is convenient for duct or ambient measurements

    • Resilient Testo patented humidity sensor ensures long life

    • Rotating display allows for easy reading of measurements

    • Quick response sensor provides fast readout of measurements

  • testo 635-2 - Temperature and moisture meter

    Order-Nr. 0563 6352

    The testo 635-2 temperature and moisture meter measures the temperature and moisture of different types of materials, surfaces, and environments, with a wide range of optional sensors.
    • Optional sensors for moisture / temperature / pressure dew point / absolute pressure measurements

    • 2 plug-in and 3 wireless sensors

    • Super-size memory for up to 10,000 readings

    • USB cable, PC software for logging and archiving measuring data

  • testo 635-1 - Humidity measuring instrument

    Order-Nr. 0560 6351

    The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point – in compressed air as well. State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.
    • Probes available as an option mean you can measure air humidity, temperature, absolute pressure, and dew point in compressed air

    • Measures air moisture, material equilibrium moisture, pressure dew point

    • Calculates dew point and dew point distance

    • Cyclical printing of readings once a minute, for example

  • testo 623 - Thermohygrometer

    Order-Nr. 0560 6230

    The elegantly designed testo 623 thermohygrometer measures the temperature and humidity in offices, living spaces, and commercial premises, and logs the readings for 90 days.
    • Measures room temperature / humidity / alerts the occupants when thresholds are reached

    • Large, easy to read display / shows current reading / provides at-a-glance 90-day statistic snapshot

    • Long term stable sensor for long term / high quality readings

    • Table and wall mount included

  • testo 605-H2 - Compact thermal hygrometer

    Order-Nr. 0560 6054

    The testo 605-H2 thermal hygrometer is capable of precise measurements of air humidity and air temperature, as well as wet bulb calculations. The testo 605-H2 is ideally suited for duct measurements, due to its slim form factor and ability to be read from multiple angles with a rotatable display.
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