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    Testo 645 Thermo-Hygrometer/Datalogger

    Model: 645 | Order No: 0560 6450 | UPC: 4029547006180

    Testo 645 Thermo-Hygrometer/Datalogger-

    Downloads: datasheet manual

    Testo 645 Thermo-Hygrometer/Datalogger

    Model: 645 | Order No: 0560 6450

    Automatically displays relative humidity, absolute humidity, dew point, degree of humidity, enthalpy, and temperature. Internal measurement store holds up to 3000 measurement values for convenient data analysis.

    Automatically displays relative humidity, absolute humidity, dew point, degree of humidity, enthalpy, and temperature. Internal measurement store holds up to 3000 measurement values for convenient data analysis.

    Discontinued!

    This product has been discontinued and is no longer available.
    This is the direct replacement:

    Testo 605i Smart Probe Thermo-Hygrometer, 0 to 100%, -4 à 140°F-

    Testo 605i Smart Probe Thermo-Hygrometer, 0 to 100%, -4 à 140°F

    Model: 605i | Order No: 0560 2605 03

    Compact and foldable to 90°, this smart probe thermo-hygrometer measures relative humidity, temperature, dew point, and wet bulb temperature in rooms, ducts, and chambers, making it ideal for HVAC/R systems diagnostics. Moreover, it features a Bluetooth range of up to 350' and an App with either Android or Apple operating systems.

    Learn More

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    Testo 645 Offers

    The 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 measurements to ±1% RH
    • Internal data memory
    • Convenient data analysis
    • TopSafe for tough applications

    Testo 645 Specifications

    Data output display LCD, 4 lines
    Storage temperature -4 to 158°F (-20 to 70 °C)
    Operating temperature 32 to 122°F (0 to 50 °C)
    Battery type 9 V Battery
    Battery life 45 hours
    Dimensions 8.5 x 2.7 x 1.9" (215 x 68 x 47 mm)
    Housing material ABS
    NTC
    Measuring range -60 to 300°F (-51.1 to 148.9°C)
    Resolution 0.1 °F (-60 to 300 °F (-51.1 to 148.9°C))
    Humidity
    Measuring range 0 to +100 %RH
    Resolution 0.1 %RH (0 to +100 %RH)
    Typ S (Pt10Rh Pt)
    Measuring range -58 to 3092°F (-50 to 1700°C)
    Click here for complete specifications on the Testo 645

    What's included with the Testo 645

    • Thermo-Hygrometer/Datalogger
    • Calibration Protocol
    • 9 V Battery
    datasheet for the Testo 645 Thermo-Hygrometer/Datalogger manual for the Testo 645 Thermo-Hygrometer/Datalogger

    Click on a category to view a selection of compatible accessories with the Testo 645 Thermo-Hygrometer/Datalogger.

    Testo 0604 9794 Air/Immersion Probe,Type K TC 0604 9794
    Super quick-action plug-in probe. For measurements in gases and liquids with a low-mass tip.



    Testo 0554 0549 Universal Infrared Printer 0554 0549
    Includes a Wireless Infrared Interface, 1 Roll of Thermal Paper and 4xAA Batteries.



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    Testo 0604 0194 Surface Probe, Type K TC 0604 0194
    Quick-action plug-in probe.



    Testo 0628 0021 High Temperature/Humidity Probe 0628 0021
    Rugged high temperature/humidity probe.



    Testo 0628 0022 Flexible Humidity Probe 0628 0022
    Flexible humidity probe does not retain shape. For measurements in inaccessible places.



    Testo 0604 0493 Immersion Probe,Type K TC 0604 0493
    Super quick-action plug-in probe. For measurements in liquids.



    Testo 0602 0092 Replacement Head for Pipe Clamp Probe 0602 0092
    Spare measuring TC head for the 0602 4592 Pipe Clamp Probe.



    Testo 0600 5593 Handle for Plug-in Probes 0600 5593
    Plug-in Measuring Tips sold separately.



    Testo 0600 5893 Flexible Plug-in Probe, High Temperature, 1030mm 0600 5893
    Probe cord is a flexible 1030mm long with an Inconel 2.4816 outter casing.



    Testo 0600 5793 Flexible Plug-in Probe, High Temperature, 550mm 0600 5793
    Probe cord is a flexible 550mm long with an Inconel 2.4816 outter casing.



    Ask a question about Testo 645 Thermo-Hygrometer/Datalogger

    Customer Reviews for the Testo 645

    Testo 645 Offers

    The 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 measurements to ±1% RH
    • Internal data memory
    • Convenient data analysis
    • TopSafe for tough applications
    Show More...

    Testo 645 Specifications

    Data output display LCD, 4 lines
    Storage temperature -4 to 158°F (-20 to 70 °C)
    Operating temperature 32 to 122°F (0 to 50 °C)
    Battery type 9 V Battery
    Battery life 45 hours
    Dimensions 8.5 x 2.7 x 1.9" (215 x 68 x 47 mm)
    Housing material ABS
    NTC
    Measuring range -60 to 300°F (-51.1 to 148.9°C)
    Resolution 0.1 °F (-60 to 300 °F (-51.1 to 148.9°C))
    Humidity
    Measuring range 0 to +100 %RH
    Resolution 0.1 %RH (0 to +100 %RH)
    Typ S (Pt10Rh Pt)
    Measuring range -58 to 3092°F (-50 to 1700°C)
    Click here for complete specifications on the Testo 645

    What's included with the Testo 645

    • Thermo-Hygrometer/Datalogger
    • Calibration Protocol
    • 9 V Battery
    datasheet for the Testo 645 Thermo-Hygrometer/Datalogger manual for the Testo 645 Thermo-Hygrometer/Datalogger

    Click on a category to view a selection of compatible accessories with the Testo 645 Thermo-Hygrometer/Datalogger.

    Testo 0604 9794 Air/Immersion Probe,Type K TC 0604 9794
    Super quick-action plug-in probe. For measurements in gases and liquids with a low-mass tip.



    Testo 0554 0549 Universal Infrared Printer 0554 0549
    Includes a Wireless Infrared Interface, 1 Roll of Thermal Paper and 4xAA Batteries.



    Testo 0554 0568 Thermal Printer Paper, 6 Rolls 0554 0568
    For use with the 575 Printer. Measurement data documentation legible for up to 10 years. Package of 6 rolls.



    Testo 0604 0194 Surface Probe, Type K TC 0604 0194
    Quick-action plug-in probe.



    Testo 0628 0021 High Temperature/Humidity Probe 0628 0021
    Rugged high temperature/humidity probe.



    Testo 0628 0022 Flexible Humidity Probe 0628 0022
    Flexible humidity probe does not retain shape. For measurements in inaccessible places.



    Testo 0604 0493 Immersion Probe,Type K TC 0604 0493
    Super quick-action plug-in probe. For measurements in liquids.



    Testo 0602 0092 Replacement Head for Pipe Clamp Probe 0602 0092
    Spare measuring TC head for the 0602 4592 Pipe Clamp Probe.



    Testo 0600 5593 Handle for Plug-in Probes 0600 5593
    Plug-in Measuring Tips sold separately.



    Testo 0600 5893 Flexible Plug-in Probe, High Temperature, 1030mm 0600 5893
    Probe cord is a flexible 1030mm long with an Inconel 2.4816 outter casing.



    Testo 0600 5793 Flexible Plug-in Probe, High Temperature, 550mm 0600 5793
    Probe cord is a flexible 550mm long with an Inconel 2.4816 outter casing.



    Ask a question about Testo 645 Thermo-Hygrometer/Datalogger

    Customer Reviews for the Testo 645

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