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Acu-Rite Digital Hygro-Thermometer

  • Item #: AR0001
  • Ships today !


  • Lightweight, Inexpensive, Accurate
  • Works Well w/ Any Humidifier or Dehumidifier
  • Shipping Info


    Acu-Rite Digital Hygro-Thermometer

    Dust mites and molds, the two most common indoor allergens, both require humid, warm environments for growth. This indoor/outdoor Acu-Rite digital humidity gauge allows you to accurately monitor the humidity in your home so that you can keep it at a healthy level. With a large, easy-to-read display, this AcuRite Digital Hygro-Thermometer provides you up to the second readings on temperature and humidity. With a 10' external sensor probe, you can also monitor outdoor temperatures or the tempature wherever you place the probe. The unit can be mounted to the wall or stand on its own as a display stand allows the gauge to sit upright. A backlight can be turned on to illuminate the screen under lowlight conditions, while the push of a button can quickly show you the current time.

    For the best control of mold and dust mites, we recommend maintaining a relative humidity of 40 to 50 percent for allergy sufferers. This impressive yet affordable Acu-Rite humidity gauge includes a submersible, weather-resistant probe for extreme outdoor weather monitoring and requires one "AAA" battery (not included). Easily monitor your home's humidity with one of our indoor humidity gauges!


    • This temperature/humidity gauge displays Time, Temperature, and Relative Humidity Levels.
    • Tracks High and Low Humidity and Temperature for Your Selected Range
    • Temperature Range (Main Unit) - 32°F to 122°F; Probe: -58°F to 158°F
    • Dimensions - W 2.75" x H 4.5" x D 0.5"
    • Humidity Range - 16% to 98% Relative Humidity
    • Battery Powered

    Customer Reviews

    1-10 of 23

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    3. 3
    no more guessing
    I have a 1 year old who was having sinus problems. I never knew if I was doing more harm then good with the humidifier. Now I know exactly when to run it and when not to. This little gadget is GREAT!!!
    Review by concerned mom / (Posted on 5/7/2015)
    great product, important to have in every home
    I am really glad i got the Acu-Rite Digital Humidity Gauge. I am very sensitive to the humidity levels in my environment. it is so important to know what the humidity levels are. this product tells you the time, the outside temperature, the indoor relative humidity percentage. if the humidity levels are below 20%, it says low. do you know what the humidity ranges are in your home? i kept it in my bedroom for the past few days, and i've noticed that the humidity levels are consistently low. this is important to know. i thought the humidity levels were too high, and that i needed a dehumidifer. it turns out that i need a humidifer to add humidity to the air. the low humidity causes me to have extreme nasal and sinus congestion, itchy throat, itchy eyes, chapped skin etc. I want to keep this gauge in every room that i frequent, and try to keep the humidity levels around 40%... if the humidity goes under 35, i need to use the humidifer or vaporizer to add humidity to the air, to prevent sinus problems. and if the humidity goes above 50, then there is too much humidity in the air, and i need a dehumidifer, to prevent problems such as the growth of mold, mildew, dust mites, etc. I am so glad that i got this product- i think i finally found the root of my problem- i need to carefully monitor the humidity levels in the rooms that i frequent, to prevent exacerbation of my sinus problems and allergies. I have a deviated septum, nasal polyps, allergies, tend to get allergic rhinitis, sinusitis, etc. and this product is truly helping me. do you know the humidity levels in your bedroom? buy this product to find out and correct the problem. you may be surprised at the difference it makes!
    Review by a sinus and allergy sufferer / (Posted on 5/7/2015)
    Keeping Humidity in check
    Excellent gauge to watch humidity levels in all areas of home. Portable to each room and is quite accurate. I don't use the outside temp as I am not interested in that. Just inside temp and humidity levels.
    Review by Dust mite allergy sufferer / (Posted on 4/7/2015)
    Easy to use
    This gauge is easy to use and affordable. I recommend it to anyone curious about the humidity levels. I bought it for my apartment because I don't have a vent in my bathroom and also because I live by the ocean and love to have my windows open.
    Review by humid in Florida / (Posted on 4/7/2015)
    Convenient humidy reference
    Works as stated. Appears to be accurate: humidity level agrees with set point of dehumidifier controller in basement.
    Review by / (Posted on 4/7/2015)
    Upstairs Gauge
    We purchased our second Acu-Rite to have one both upstairs and downstairs. Our first purchased a year ago has proven to be an excellent product to help monitor our humidifier/de-humidifier operation during Michigan's dry winters and humid summers.
    Review by Bob / (Posted on 4/7/2015)
    Great Gauge
    Easy to use and portable throughout the house.
    Review by / (Posted on 4/7/2015)
    Our new dehumidifier is fabulous. This is the second week we have had it hooked up. It is quiet and does a tremendous job. Our basement was at 65 percent humidity. Now, it is 47 percent, and the smell is completely gone. Thank you so very much!
    Review by AGG- Severe Asthma Sufferer / (Posted on 4/7/2015)
    Cool Tool
    My business of helping people weather-proof their homes has profited greatly showing them the humidity level with this little gadget. No other humidity gauge is as portable, and easy to use as this one. Not to mention the value compared to the bigger gauges at the big box stores.
    Review by Terry / (Posted on 4/7/2015)
    Digital Humidity Gauge
    Fantastic product! Instructions are fiber clear. Works effortlessly. Updates humidity/temp changes quickly.
    Review by Humid human / (Posted on 4/7/2015)

    Product Questions

    How long does it take for this product to take an accurate humidity reading? I plan to take one from home to home for readings I have a home watch business and this would be the best way I can think of to assure the combiation A/C/humidifier is operating correctly.
    if i mount the probe in my attic and run the wire to the main unit in my hallway will it measure the temperature AND the humidity in the attic?
    What is the warranty?

    Acu-Rite Digital Hygro-Thermometer Additional Resources

    Acu-Rite User Manual    Chaney Instrument Acu Rite Manual
    Mold Information
    Mold FAQs
    Common Types of Household Mold