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    Testo 425 NTC, Thermal 20m/s Max Air Velocity, Air Velocity, Temperature, Volume Air Flow Anemometer

    RS Stock No.:
    512-0317
    Mfr. Part No.:
    0560 4251
    Brand:
    Testo
    Testo
    View all Anemometers
    12 In stock for delivery next working day
    12 available from Europe for delivery within 2 working day(s).
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    kr 4 750,80

    (exc. VAT)

    kr 5 938,50

    (inc. VAT)

    UnitsPer unit
    1 +kr 4 750,80
    RS Stock No.:
    512-0317
    Mfr. Part No.:
    0560 4251
    Brand:
    Testo

    RoHS Status: Not Applicable

    COO (Country of Origin):
    DE

    Technical Reference


    Legislation and Compliance

    RoHS Status: Not Applicable

    COO (Country of Origin):
    DE

    Product Details

    testo 425


    From Testo, the 425 hot-wire anemometer designed for measuring air velocity, air temperature and volume flow. The pocket-sized meter provides instant, accurate spot readings at ventilation ducts, air grills and air outlets. Constructed from tough, impact resistant materials the robust hand-held meter is an ideal instrument for HVAC engineers, technicians and installers.

    Compact in design, the handheld anemometer uses a combination of hot-wire and NTC thermistor technology to deliver rapid, accurate readings. The 425 anemometer records the flow speed, calculates the volumetric flow and measures the temperature. With a measuring range of 0 to + 20 m/s, the meter can even be used for low flow speeds. A fixed telescopic probe with small 7.5mm dia sensor head can be extended to a maximum length of 820mm for applications where measuring space is hard to reach or limited.

    An easy to navigate keypad and soft control buttons make the Testo 425 handheld anemometer incredibly easy to use. With minimal effort the user can select the function to be measured, the mode you wish to record and the unit the data will be shown. With a large backlit LCD display, all collected data is clearly shown on the front screen, even in low light conditions. A handy auto-off feature also helps to conserve battery life.


    Features and Benefits


    • Compact, robust ABS housing
    • Accurate, rapid results
    • Easy to control keys
    • Precision air velocity and NTC thermistor sensors
    • Measurement of flow velocity, volume flow and Temperature
    • Compact 7.5mm diameter sensor sits on top of telescopic probe
    • Multi-point and timed mean calculation of volume flow, flow speed and temperature reading
    • Shows air flow results in 3/s
    • Shows volume flow results in m³/h
    • Shows temperature results in °C
    • Hold button to freeze readings
    • Auto-off function for battery conservation
    • Easy to read Illuminated display


    Applications


    Hot-wire anemometers are the perfect instrument for engineers and technicians looking to carry out tests and surveys on ventilation, air conditioning equipment. They are used to measure airflow and temperature quickly and accurately. The information and data they provide are vital in a wide range of applications and environments. They are essential for reporting, forecasting, planning and most importantly health and safety. Some of the more common applications are


    • Environmental testing
    • Air conveyors
    • Clean rooms
    • Air balancing
    • Fans /motors/ blowers
    • Furnace velocity
    • Paint spray booths
    • HVAC system performance


    FAQ


    Q - Is there a recommended replacement battery?
    A - Yes, the Testo 425 digital anemometer uses a 9V battery for its power supply. See RS part number 826-4435


    Supplied with

    alkaline battery and instructions

    Testo Thermal Anemometer, 20m/s Maximum Air Velocity, 9V Battery - 425 Series - 0560 4251


    This thermal anemometer from Testo measures the velocity and temperature of wind currents. It's easy to use by simply holding or placing the cylindrical probe in an exposed area to send readings along the cable to the device. The readings appear in large, legible numbers on the screen, which also has an LED (light-emitting diode) backlight for easy-to-see results. The four buttons on the device allow you to key in measurements and change settings for enhanced control and versatility.


    Features & Benefits


    • 9V battery offers a 20-hour life for long-lasting use
    • Temperature resolution of +0.1°C and accuracy margin of ±0.7°C give you precise readings
    • Maximum air velocity of 20m/s (metres per second) for use with fresh gales
    • Broad operating temperature range of -20°C to +50°C for use in a variety of environments


    Applications


    • Scientific research
    • Air conditioning engineers
    • Harvest preparation


    Does this anemometer have a power-saving function?


    Yes, this anemometer has an auto-off feature to power down and conserve battery life when you're not taking readings. You can also turn off the backlight on the control pad to further conserve the battery.



    Specifications

    AttributeValue
    Measurement ParametersAir Velocity, Temperature, Volume Air Flow
    Maximum Air Velocity20m/s
    Best Air Velocity Accuracy±5% + 0.03 m/s
    Air Velocity Resolution0.01m/s
    Probe TypeNTC, Thermal
    Maximum Temperature+70°C
    Temperature Measurement Resolution0.1°C
    Best Temperature Measurement Accuracy±0.7 °C
    Power SourceBattery
    Battery Type9V
    Battery Life20 h
    Dimensions182 x 64 x 40mm
    Weight285g
    Height40mm
    Minimum Operating Temperature-20°C
    Length182mm
    Model Number p425
    Maximum Operating Temperature+50°C
    Width64mm
    12 In stock for delivery next working day
    12 available from Europe for delivery within 2 working day(s).
    Add to Basket
    Units

    Added

    Price Each

    kr 4 750,80

    (exc. VAT)

    kr 5 938,50

    (inc. VAT)

    UnitsPer unit
    1 +kr 4 750,80