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Humidity Measuring Instruments
Thermal Hygrometer
Product Brochure
Measuring range | 0 to100 RH |
Resolution | 0.1% RH |
Storage temperature | -20 to +60 C |
Operating temperature | -20 to +50 C |
Battery type | 3 micro batteries AAA |
Battery life | 150 hrs |
Dimensions | 243 x 30 x 24 mm |
Warranty | 2 years |
testo 605i- Thermal hygrometer
testo 605i, the humidity measuring instrument, in combination with a smartphone or tablet, facilitates measurement of air temperature and relative humidity in rooms and ducts. It can also be used to determine the cooling and heating performance together with the thermal anemometer testo 405i.
Features:
Measurement of air humidity and temperature in rooms and ducts
Compact professional measuring instrument for use with smartphones/tablets
Automatic calculation of dewpoint and wet bulb temperature via testo Smart Probes App
Measurement data analyzed and sent via testo Smart Probes App
Hygrometer
Product Brochure
Storage temperature | -20 to +60 C |
Operating temperature | -10 to +60 C |
Battery life | 12 months |
Weight | 240 g |
Dimensions | 185 x 105 x 36 mm |
Measuring Rate | 20 s |
- Histogram shows current and past temperature or humidity values.
- Hanging and standing bracket allows flexible positioning on a wall or desktop
- Analysis of past temperature and humidity values directly on site without evaluation on a PC
- All important values at a glance: current and past temperature and humidity values as well as date and time
Additional Information:
- Item Code: Testo-623
Compact Hygrometer
Product Brochure
Operating temperature | -20 to +50 C |
Battery type | 9V block battery, 6F22 |
Battery life | 70 h (without radio operation) |
Weight | 195 g |
Dimensions | 182 x 64 x 40 mm |
Housing material | ABS |
Warranty | 2 years |
The compact instrument with built-in humidity probe head for measuring air moisture and temperature. The large 2 line display shows humidity, wet bulb temperature or dewpoint as well as temperature. When measuring at hard-to-access points, the humidity probe head can be easily removed and attached to the handle via the probe cable (accessory). Alternatively, the readings can be transmitted wirelessly over wide distances from the probe to the measuring instrument. To do this, the humidity probe head is attached to the radio handle (accessory) and the radio module (accessory) is added to Testo 625.
Features:
- Displays temperature and relative humidity / wet bulb temperature / dewpoint
- Max./min. values
- Hold button to freeze readings
- Display light
- Auto Off function
- TopSafe, the indestructible protection case (optional)
- Patented humidity sensor
- 2 year guaranteed long-term stability
- TopSafe, instrument protection against dirt and knocks (optional)
Additional Information:
- Item Code: Testo-625
Dew Point Transmitters
Product Brochure
Material | Plastic, polyacrylamide |
Dimensions | 199.5 x 37 x 37 mm |
Weight Approx | 300 g |
Operating temperature | -20 to +70 C (housing) |
Storage temperature | -40 to +80 C (-40 to +176 F) |
Process pressure max | 50 bar (725 psi) |
For the display of the relevant trace humidity parameters, a freely scalable analog output is available, optionally with a switch contact plug for the max monitoring. In addition to this, the Testo 6740 stands out thanks to its compact and user-friendly design, such as the rotatability of the housing by 350° for the optimum positioning of the display.
Areas of application:
- Refrigeration dryers
- Membrane dryers
- Adsorption dryers
- Granulate dryers
Additional Information:
- Item Code: Testo6740
Testo Thermohygrometer
Product Brochure
Display | LCD, 2 lines |
Storage temperature | -40 to +70 C |
Battery type | 9V block battery |
Weight | 168 g |
Dimensions | 111 x 90 x 40 mm |
Housing material | ABS |
Warranty | 2 years |
Testo 608-H1 thermohygrometer humidity/dewpoint/temperature incl. battery
With dew point calculation td and max/min display
Humidity sensor is not affected by condensation
The affordable standard Testo 608-H1 hygrometer measures humidity, temperature and dewpoint non-stop. The efficient Testo 608-H2 alarm hygrometer with LED alarm function for accurate signals when limits are exceeded.
Features:
- With dew point calculation td and max/min display
- Humidity sensor is not affected by condensation
- Battery monitoring
Testo 608-H2
Humidity/dewpoint/temp. meas. instr., incl. LED alarm, battery and calibration protocol
High accuracy ±2 %RH (testo 608-H2)
testo 608-H2, with LED alarm, warns if limits are exceeded
The accurate Testo 608-H2 alarm hygrometer reliably indicates when humidity and temperature limits have been exceeded, for example in garden centres, warehouses, cleanrooms, museums, laboratories etc.
Features:
- All the benefits of Testo 608-H1
- High accuracy ±2 %RH (Testo 608-H2)
- Testo 608-H2, with LED alarm, warns if limits are exceeded
Additional Information:
- Item Code: Testo-608-HI-H2
Humidity Transmitter Device
Product Brochure
Material | Plastic |
Dimensions | 122 x 162 x 77 mm (without probe) |
Current consumption max | 300 mA |
Weight | 0.675 kg |
Protection class | IP65 |
Operating temperature | -40 to +60 C (with integrated relay) |
- adjustment of entire signal chain, including analog adjustment, without dismantling the transmitter
- 1-point adjustment can be performed on-site easily and quickly using t400 or t650
- 2-point adjustment via P2A software or user menu
Parameter zing, adjusting and analyzing software (P2A) for setting up, adjusting and analyzing the transmitter:
- Parameterization of unit and scaling
- Adjustment (see above)
- Reset to factory settings
- Testing of analog outputs/relays
- Requesting of max./min. values
- Parameterization and adjustment history: All activities of the P2A software are registered with an operating time stamp in the internal log.
Additional Information:
- Item Code: Testo-6651
Humidity Transmitter
Product Brochure
Accuracy | +/- 0,5 C / 0,9 F |
Voltage supply | 20 to 30 V AC/DC |
Dimensions | 81 x 81 x 26 mm |
Weight | 80 g / 90 g |
Display | 2-line LCD (optional) |
Temperature | 0.1C/F |
Parameterization | P2A software |
A broad variety of the Testo 6621 transmitter is available. Depending on the application in a room or in a duct, the corresponding designs can be selected. A display and an external probe are available as options. You can choose between the housing colours grey and white. The Testo 6621 is persuasive in technical terms thanks to the patented humidity sensors that guarantee the highest accuracy. The sensors and the analog outputs can be adjusted, analyzed and parameterized via the external interface using the P2A software.
The product is placed in the lower price range and is equipped with the features important for the application range as well as some new, beneficial features:
- An attractive, simple design, ideally suited for use in public view
- The reliable, tested Testo humidity sensor
- Fast and easy on-site adjustment with Testo handheld instruments (types testo 400 and testo 650)
- Easy-to-use P2A software for parameterization or adjustment
Areas of application:
- Industrial and commercial buildings, e.g. production and storage
- Offices and administrational buildings
- Sales areas and exhibition hall
- Museums and libraries
- School buildings, hotels, clinics etc.
“Please contact us for various other models of Humidity Transmitters”
Additional Information:
- Item Code: Testo-6621
Humidity Transmitter Measuring Device
Product Brochure
Weight | 1.960 kg |
Current consumption max | 300 mA |
Dimensions | 122 x 162 x 77 mm (without probe) |
Display Optional | 2-line LCD with clear text line and relay status display |
Protection class | IP65 |
Operating temperature | -40 to +60 C (with integrated relay) |
- Highest accuracy up to ±1.0 % RH
- First humidity transmitter with Profibus-DP interface
- Digital probe of the 6610 instruments: can be calibrated and exchanged and is equipped with its own order number
Probes for specific applications:
- testo 6614: Heated probe for long-term high-humidity processes
- testo 6615: Trace humidity measurement with automatic adjustment
- testo 6617: Integrated sensor self-diagnosis
- Further wall, duct and cable versions can be configured upon customer request and are heat resistant up to +180 °C
Additional Information:
- Item Code: Testo-6681
Digital hygrometer and barometer
Product Brochure
Weight | 240 g (without batteries) |
Storage temperature | -20 to +60 C |
Operating temperature | -10 to +60 C |
Battery life | 12 months |
Dimensions | 185 x 105 x 36 mm |
Measuring Rate | 10 s |
- Precise measurement of temperature, humidity and pressure
- All important values at a glance: current measurement values as well as date and time
- Calibration and adjustment of the measuring instrument possible on site with the optional calibration and adjustment software
- Adjustable calibration reminder function
In addition to temperature and humidity, the testo 622 also measures pressure. In the large, clear display, it shows the current measurement values as well as the date and time. It thus provides all important values at a glance.
- Hanging and standing bracket allows felxible positioning on a wall or desktop
- Large, optimally legible display
- Precise measurement of temperature, humidity and pressure
- All important values at a glance: current measurement values as well as date and time
- Calibration and adjustment of the measuring instrument possible on site with the optional calibration and adjustment software
- Adjustable calibration reminder function
Additional Information:
- Item Code: Testo-622
Humidity & Dew Point Meter
Product Brochure
Brand | Testo |
Weight | 428 g |
Operating temperature | -20 to +50 C |
Storage temperature | -30 to +70 C |
Battery type | Alkali manganese, mignon, Type AA |
Battery life | 200 h |
Dimensions | 220 x 74 x 46 mm |
Warranty | 2 years |
Up to two probes temperature or humidity can be connected and data displayed in the testo 635 meter. Material moisture can be displayed immediately on account of the special probe. Characteristics for different materials can be stored in ComSoft and transmitted to the instrument. Pressure Dew point down upto 60 tpd can be measured using this instrument in compressed air or gases like SF6. In all the instrument has the below advantages.
- Instrument memory for up to 10,000 readings
- PC software for analysis, filing and documentation of measurement data
- Measurement of air moisture, material equilibrium moisture, pressure dew point
- U value probe connection option
- The instrument testo 635-1 for measuring air moisture, material equilibrium moisture and pressure dewpoint in compressed air systems.
- Up to 3 temperature or humidity probes can be displayed; data transmission is radio-controlled, i.e. wireless.
- Measurement data can be transmitted by infrared to the Testo printer.
- Similarly testo 635-2 for measuring air moisture, material equilibrium moisture and pressure dewpoint in compressed air systems.
- Moisture characteristics can be recorded in the instrument memory and analysed and displayed in graphics or tables.
- Up to 3 temperature or humidity probes can be displayed in the Testo 635-2 meter; data transmission is by radio i.e. wireless
Additional Information:
- Item Code: Testo-635
Humidity Measuring Instrument
Product Brochure
Weight | 255 g |
Operating temperature | 0 to +50 C |
Storage temperature | -20 to +70 C |
Display | LCD, 4 lines |
Battery type | 9V block battery |
Battery life | 45 h |
Dimensions | 215 x 68 x 47 mm |
Housing material | ABS |
Warranty | 2 years |
The testo 645 humidity measuring instrument automatically displays the parameters relative humidity, absolute humidity, dew point, degree of humidity, enthalpy and temperature. Convenient data analysis on your PC with location name.
Features :
- Highly accurate humidity meas. to ±1%RH
- Internal data memory
- Convenient data analysis
- TopSafe for tough applications
- Channel 1: Temperature probe Type K/J/S, NTC
- Channel 2: Combi-probe humidity/temperature or temperature probe Pt100
Additional Information:
- Item Code: Testo-645
Transport Data Logger for Humidity Measurement
Product Brochure
Memory | 64000 measurement values |
Dimensions | 44 x 12 x 97 mm |
Weight | 45 g |
Protection Class | IP30 |
Operating temperature | -20 to +70 C |
Storage temperature | -55 to +70 C |
With the temperature and humidity data loggers testo 184 H1, you can monitor the transport of sensitive goods such as pharmaceuticals, foods or electronics or art, over an unlimited period.
- Unlimited operating time
- Immediate creation of a PDF report directly after connection to a computer
- All in one logger: PDF measurement data, configuration file and instruction manual
- Compliant with GxP, 21 CFR Part 11 and HACCP
Additional Information:
- Item Code: testo184H1