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Connector Type
SD Card Connectors
USB Connectors
Tool Type
Noise Meter
Temperature Measurement
Wind Measurement
SD Card
Battery Operated
LCD Display
Ease of Installation
Beginner (Installs < 10 minutes)
Extech Instruments
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Measure Humidity, Temperature, Air Velocity, Light and Sound
Extech Instruments EN300 Hygro-Thermo-Anemometer-Light-Sound Meter
Extech Instruments EN300 Hygro-Thermo-Anemometer-Light-Sound Meter
Extech Instruments EN300 Hygro-Thermo-Anemometer-Light-Sound Meter
Item# 90232
Price: Normally $319.99 
Hot Deal $299.96
Free shipping on orders over $50 - See Details


  • Anemometer, humidity meter, light meter, thermometer, and sound level meter in one unit
  • Large LCD simultaneously display temperature and air velocity or relative humidity
  • Auto power off after periods of non-use
  • Low battery and overrange indicators
  • Tripod-mountable

Essential Info

This environmental meter combines five professional meters into one convenient and handheld package. A low-friction ball bearing mounted wheel designed allows for accurate readings of air velocity. Humidity is measured with a high precision humidity sensor for faster response times. The light meter uses a photo diode and color correction filter light sensor to indicate light levels. Sound is measured with ‘A’ frequency weighting and a ‘FAST’ time response. Temperature can be displayed in either Celsius or Fahrenheit with a standard-type K thermometer. All readings are clearly displayed on the large dual LCD screen. Six AAA batteries (included) are required for operation. A low battery indicator informs you when the battery is running low. The meter also features and automatic off time, which will turn the meter off after 10 minutes of non-use to prolong battery life.


What's Included

  • 1x - Hygro-Thermo-Anemometer-Light-Sound Meter
  • 1x - Vane wheel
  • 1x - Windscreen
  • 1x - Type K thermocouple probe
  • 1x - Pouch case
  • 6x - 1.5V AAA batteries

  • Specifications

    ManufacturerExtech Instruments
    Manufacturer Product No.EN300
    DisplayLCD display, LCD size: 41.5mm x 31.5mm
    MeasurementAnemometer (air velocity and temperature)
    Humidity (%RH and temperature)
    Thermometer (type K)
    Sound level
    Operating Humidity80%RH maximum
    Operating Temperature32 to 122 degrees F (0 to 50 degrees F)
    Over Input DisplayIndication of "----"
    Data OutputRS232 / USB PC serial interface
    Power Supply1. DC V battery (UM4, AAA) x 6 PCs, 9V DC adapter input (AC power adapter is optional)
    Power ConsumptionAnemometer: approximately DC 11 mA
    Other functions: approximately DC 7.5 mA
    Dimensions9.8" H x 2.8" W x 1.3" D (248mm H x 70mm W x 34mm D)
    Weight0.74 lb (335 g) - battery included
    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Extech Instruments Corp, Tel: (781) 890-7440 Ext 200


    2 Ratings
    5 star: 50%  (1)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 50%  (1)
    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    CALVO & ASOCIAD -- miami, FL   4/19/2012
    this item is extremely useful for inspection purpose. Very user friendly. only thing that you need to know is that shipment date is not so expedited because it depend on factory stock.
    JAMES -- dana point, CA   4/17/2012
    Notification of back order very quiick. Notification of delivery date appreciated. Delivery on time, and received in good condition. --Jim


    Sony Alkaline AAA batteries       
    Sony Alkaline AAA batteries       

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