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AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2

Digital Thermometer with 10-foot Temperature Sensor Probe and Humidity


(In stock)

  • AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2 AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2
  • AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2 AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2
  • AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2 AcuRite Digital Indoor / Outdoor Thermometer with Humidity / Clock 00891A2

Digital Thermometer with 10-foot Temperature Sensor Probe and Humidity

Quick Overview

The AcuRite Digital Thermometer features precise, reliable temperature and humidity readings readings using a weatherproof and water resistent sensor probe. The thermometer provides both the temperature where the monitor sits and the probe's temperature.

The bold, easy to read LCD screen displays the temperature readings with minimum / maximum information, humidity and the time. The external sensor probe is 10 ft. long for easy positioning outside a window, door or inside a cage, tank or other area. Display stands upright for tabletop use or is wall-mountable.

One-year limited warranty. It's more than accurate, it's AcuRite.

Model #: 00219CA, 00891A1, 00891A2, 00891A3, 00891CASB, 00891HDCSA1, 00891HDSB, 00891HDM,00891HDMA1, 00891SBCA, 00892SB

Availability: In stock



Digital Thermometer with Wired Temperature Sensor

  • Digital display features a built-in thermometer and hygrometer for indoor temperature and humidity readings
  • Water-resistant, weatherproof 10-foot wired sensor probe measures temperature (degrees Fahrenheit and Celsius)
  • Can be used for indoor and outdoor temperature
  • All-time high and low temperature and humidity records
  • Clock
  • Momentary backlight
  • Tabletop or wall-mountable design

Digital Thermometer Includes: Digital thermometer display, 10-foot wired temperature sensor probe, instruction manual

Warranty: Limited 1 year warranty


Digital Thermometer Specifications

Display Temperature Range32 to 122 degrees Fahrenheit; 0 to 50 degrees Celsius
Sensor Temperature Range-58 to 158 degrees Fahrenheit; -40 to 70 degrees Celsius
Temperature Accuracy+/- 2 degrees Fahrenheit; Learn more
Display Humidity Range16% to 98% Relative Humidity
Humidity Accuracy+/- 5% from 0% to 10% Relative Humidity
+/- 4% from 10% to 20% Relative Humidity
+/- 3% from 20% to 80% Relative Humidity
+/- 4% from 80% to 90% Relative Humidity
+/- 5% from 90% to 100% Relative Humidity
Power1 AAA alkaline battery (not included)
Dimensions Display4.5-inches Height x 2.5-inches Width x 0.5-inches Depth
Wired Sensor: 10 feet (3 meters)
  1. Perfect WineMaking Thermometer review by home-winemaking on 9/26/2013

    This has been the perfect thermometer for home winemaking. I had a floating thermometer that came with a kit of winemaking supplies, but I attempted a wild grape wine recipe for the first time and the floating thermometer kept getting stuck in the grape skins. I used this thermometer - just put the temperature probe in the must, and I love that it tracks my high / low temperatures during the fermentation process. It tells me the temperature of the wine and the temperature of the room I'm making homemade wine in. This is the perfect home winemaking thermometer! Highly recommended.

  2. Accurate and Reasonably Priced review by mark on 6/18/2013

    I have mold problems in closets during Spring and Fall. The humidistat helps me monitor and prevent molding with de-humidifier. It also helps me with temp managment during heating season with the woodstove. I have owned one for a number of years and was glad to find them still available. I bought 2 more. Great unit, overall.

  3. Great for the incubator review by Vince on 6/18/2013

    I use 2 inside the Egg Incubator. One at the top of the incubator, and one at the bottom. Then I can get an average reading of temperature and humidity. I also have one inside the Hatcher. They are easy to read through the plexiglass doors. Great value too. I recommend them to my friends with Incubators.

  4. Acurite Digital thermometer review by Weather fan on 12/12/2011

    I had tried a couple of other brand thermometers from other large stores, both were not accurate, about 3 - 5 degrees off. This one comapared very close to the National Weather Service readings, and other thermometers I comared to. The humidity reading was also close to the NWS readings when measuring outside. The cord for the remote sensor is plenty long. The price has gone up from what I paid at Lowes.

  5. Perfect! review by Tyler on 12/12/2011

    I use this with my reptiles. Mainly my Leopard Gecko. This works perfectly because it has every feature I would need for a reptile. Its as if the manufacturer created it with herpers in mind! Although its made for humans, it works better with reptiles because it's cheaper than reptile thermometers, does more, and is a TON more accurate than the ones we have. Every feature works perfectly in my opinion- the light up feature is convenient when working with my reptiles in low light settings, especially since my gecko is nocturnal. The clock is pretty useless in my usage since I don't really need to check the time while caring for my reptiles but it can be useful. I also appreciate the probe a LOT. With how long it is and with the stickiness of it, it helps to read the temps over the heat mat. I don't know what I'd do without it!

  6. Good product review by dogwalker on 12/12/2011

    Not a laboratory instrument, but perfect for keeping an eye on my basement humidity level in the summer. Now I know where to set my dehumidifier to maintain about 50--55% humidity. Keeps that nasty mildew from all the junk I keep down there.

  7. good digital thermometer/hygrometer review by xprt on 12/12/2011

    I bought 4 of those at $10 a piece to help control the temperature and humidity in my new house from basement to attic. They worked flawlessly for 2 months and counting, accurate measurements for both temperature and humidity when I checked vs my Sharp hygrometer/thermometer and a bulb thermometer. The maximum divergence between the 4 instruments for both inside and outside temperature probe is < 1oC (<2oF) when measured @ 22oC., and divergence < 2% for humidity. I like the range (min/max) feature to check the fluctuation for temp or humidity during a period of time.
    The thermometer is very sensitive to radiant heat, especially the outside temperature probe: even 6 feet away under an incandescent light bulb could add 4oC to the reading, covering the probe with aluminum or paper, or switching off the light would correct the reading.
    Measurements are slow to stabilize (~5 min) so not good for most scientific projects.

  8. it works review by hawk on 12/12/2011

    I use it for monitoring my wine cellar temp and humidity. it is very slow to react temperature change, which will take at least 5min read a correct temp. The only issue I had with it that the indoor temp readout indicates a different temperature when the outdoor temp probe is placed at the same location of the indoor probe was. It eventually reads the same, but I dont know how long it takes read the same temperature by two probes so I only trust the outdoor probe reading. Overall it works and it is a value.

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