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Transparent rectangular digital thermometer with backlit LCD display showing indoor temperature and humidity

Acurite

Acurite 00891 Digital Thermometer

SKU CH-2MT2-SVVQ5

Indoor and outdoor digital thermometer with humidity display, measuring -58 °F to 158 °F and 16 % to 98 % RH

  • Product colorTransparent
  • Monitors indoor and outdoor temperature from -40 to 70 °C
  • Displays indoor humidity levels between 16 and 98 percent
  • Backlit 4-digit LCD readable in low light
  • Powered by a single AAA battery for simple operation
  • Wide sensor range of -58 to 158 °F covers extreme conditions

What this thermometer measures

The Acurite 00891 is a digital thermometer that shows indoor temperature and humidity on a backlit LCD. It includes one wireless sensor for outdoor readings. The unit runs on a single AAA battery and is ready to use out of the box.

Temperature and humidity ranges it can display

The outdoor sensor reads from -58 to 158 degrees Fahrenheit and -40 to 70 degrees Celsius. Indoor humidity is shown between 16 and 98 percent. The base unit itself operates safely from 32 to 122 degrees Fahrenheit or 0 to 50 degrees Celsius.

Simple setup with one common limit

Insert the AAA battery, place the sensor outdoors, and the display pairs automatically. The main restriction is the single included sensor, so you cannot monitor multiple outdoor locations at once. No wiring or programming is required.

How it compares

Measured against everything we stock in Thermostats & Thermostat Accessories, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 85% of the 286 comparable items (median $78.49).

Specifications

Product
Brand nameACURITE
Product colorTransparent

Questions about this item

Should I choose the 00891 model for indoor and outdoor temperature plus humidity?

Yes, the 00891 shows indoor temperature, outdoor temperature from the included sensor, and indoor humidity on one display.

What does the sensor range of -58 to 158 °F mean when the unit is installed?

The remote sensor reads accurately from -58 °F up to 158 °F, covering winter lows and summer highs outside.

Does the wireless link limit the temperatures I can actually see?

The base station operates from 32 °F to 122 °F, so the display works indoors while the sensor handles the wider outdoor span.

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