Site Information

 Loading... Please wait...
You are using an outdated browser. Please upgrade your browser at to improve your experience.
Product Info

Extech 445703 Big Digit Hygro-Thermometer


Selected But Not Shown

    The Extech 445703 Big Digit Hygro-Thermometer displays concurrent measurements of temperature and humidity using easy-to-read 1" digits on a spacious dual LCD screen.

    This meter helps maintain proper temperature and humidity conditions in a variety of different locations, giving you accurate measurements and recording for all of your assessment projects.


    • Comes with Max/Min with "reset" function
    • Sizable digits on display for quick readings
    • °C/°F alternatable temperature measurements
    • Low battery indicator
    • Complete with built-in tilt stand, wall mounting bracket, and 1.5V AAA battery


    Humidity10 to 99% RH
    Temperature14 to 140°F or -10 to 60°C
    Accuracy±5%RH; ±1.8°F, ±1°C
    Dimensions4.3" H x 3.9" W x 0.78" D
    Weight6 oz

    Product Reviews

    Write Review

    This product hasn't received any reviews yet. Be the first to review this product!

    Warranty Information

    This product comes standard with a 1-year warranty.

    Return Information

    • Return windows close 30 days after you receive your item.
    • You are responsible for obtaining a Return Merchandise Authorization, the cost of shipping, and potential restocking fees, if the item has been opened.
    • To start a return, or to view the full returns policy, click here.
    Your Cost $47.00 List Price:
    Ships Free (US48)
    Ships in 2-3 weeks

    Click the button below to add the Extech 445703 Big Digit Hygro-Thermometer to your wish list.

    Please Note: Adding items to your wishlist will not save your custom configuration. If you would like to save your current configuation, you can email it to yourself, or copy the link below.

    Are you sure you're finished customizing this product?

    No, Continue Building
    Yes, Add To Cart Now

    Bulk Deals

    In many cases, we can offer bulk quantity discounts for purchases or smaller orders made over an extended period of time. Bulk deals are based on anticipated volume and the products you've selected. We can also provide you with brochures and swatches to assist in your purchasing decisions.

    If you would like to request a quote, we can be reached via phone (800-531-3746), email (, or live chat from 8am - 7pm Monday - Friday and from 10am - 6pm Saturday.

    Swatch Request Form

    Thank You!

    Please allow 1-3 weeks for delivery.

    Please Select Swatches