Automatic calculation of dew point and wet-bulb temperature
View and analyze measured values, and create and send reports using the testo Smart Probes mobile app
Identification of areas at risk of condensation and mold using traffic light color indication
Measurement range: 0 to 100% RH; -20 to 60 °C
The compact Bluetooth thermohygrometer testo 605i offers professional measurement technology in an innovative format. In combination with a smartphone or tablet, the device is ideal for measuring air temperature and relative humidity in rooms and air ducts.
Measuring instrument including battery – testo 608-H1 Hygrometer, Humidity/Dew Point/Temperature. Measuring instrument including battery
A reliable and accurate humidity sensor is essential for humidity measurements that you and your customer can trust. The testo 608 is equipped with a patented Testo® humidity sensor, with accuracy confirmed by seven worldwide national standardization laboratories, allowing you to perform measurements with confidence.
Built-in patented Testo® humidity sensor
Continuous measurement of relative humidity, dew point, and temperature
Display of min/max values with reset function
Low battery indicator
The instrument can be placed directly on the workplace or mounted on the wall
A reliable and precise humidity sensor is essential for measurements you and your customer can trust. The testo 608 is equipped with the patented Testo® humidity sensor, whose accuracy is validated by seven national standardization laboratories worldwide, allowing you to perform measurements with confidence.
All advantages of the testo 608-H1
Optical alarm signal when exceeding upper or lower set points for temperature, humidity, or dew point
Guaranteed accuracy: ±2 % RH across the entire measurement range
Includes calibration protocol
Built-in calibration function using the Testo reference system
Accurate measurement of temperature, humidity, and pressure.
Displays all data, including date and time.
Large, easy-to-read display. Configurable calibration reminder function.
Sensor accuracies:
Temperature: ±0.4 °C + 1 digit
Humidity: ±2 % RH + 1 digit at 25 °C (10 … 90 %)
Application: Laboratory
Absolute pressure: ±3 hPa + 1 digit
Instant display of key values:
Temperature, humidity, pressure, date, and time
Selectable units:
Temperature: °C, °F
Humidity: % RH, dew point (td), wet bulb (wb)
Pressure: hPa, mbar, kPa, in Hg, in H₂O, psi
Maximum and minimum values with a single button press
The histogram displays temperature and humidity values over past days – an overview is available for up to 12 weeks. For the selected time interval, 12 histogram bars show intermediate values over the last 5 minutes, 10 minutes, 1 hour, 2 hours, or 12 hours.
Sensor Accuracy:
* Temperature: ±0.4 °C + 1 digit
* Humidity: ±2 % RH + 1 digit at 25 °C (10 … 90 %)
With app connection and audible alarm, including nylon transport bag, batteries, and calibration protocol
Simple, fast, and precise measurement of air temperature and relative humidity.
Calculation of dew point and wet bulb temperature.
Quick setup in the app, graphical history, second screen, and storage of measurement data in the testo Smart App.
Audible alarm when limit values are exceeded.
With the compact testo 625 device, you can easily, quickly, and accurately measure air temperature and relative humidity to assess indoor air quality or ensure optimal conditions in storage facilities.
The testo Smart App provides useful functions such as configuration, display (also as a second screen), as well as storage and documentation of measured values directly in the app.
Selectable analog signal outputs and optional display (depending on configuration)
Transmitter for measuring differential pressure in the range from 100 Pa to 2 bar
A **solenoid valve** for **automatic zero point adjustment** guarantees high accuracy independent of temperature and long-term stability
An **external interface** for adjustment and analysis saves time and reduces costs for commissioning and maintenance
Optional display
testo 6321 differential pressure transmitter, accuracy **±1.2%** of the measuring range, **automatic “zero point” adjustment**, selectable measuring ranges from **100 Pa to 2000 hPa**, selectable analog signal outputs, external digital interface for adjustment and parameterization, optional display.
This instrument measures air humidity, equilibrium moisture of materials, and dew point under pressure in compressed air systems. The display can show data from three humidity or temperature probes; data transmission can be done wirelessly using the radio option 9* (please check if this option is available in your country). Measurement data can also be sent to a Testo printer via the infrared port. During cyclic printing, data can be printed at regular intervals, e.g., once per minute. The instrument instantly shows the dew point difference between air temperature and the surface temperature of walls when analyzing wall and ceiling moisture. Precise probes are used for measuring dew point under pressure in compressed air systems, down to -60 °C. The Testo humidity sensor is globally recognized for outstanding accuracy, long-term stability, temperature resistance, and durability.
Print measurement data on-site using a Testo printer
Cyclic data printing on the Testo printer, e.g., once per minute
Measurement of humidity, material equilibrium moisture, and dew point under pressure
Radio probes for measuring temperature and humidity
