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  • Aranet2 HOME
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  • Aranet2 HOME
  • Aranet2 HOME
  • Aranet2 HOME
  • Aranet2 HOME
Last updated August 2026

Aranet2 HOME

3.6
27 ratings
Launch Year: 2022

Model: Aranet2 HOME

$79.00
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Our review

Aranet2 HOME Review: A Bluetooth Hygrometer That Nails Accuracy Over Smart Features

Precise temperature and humidity readings on a paper-white E-Ink display, with dependable battery life, but no WiFi or mainstream smart-home integrations.

The verdict

The Aranet2 HOME is a Bluetooth-only temperature and humidity monitor built around one job: giving accurate, easy-to-read readings and dependable history logging, wrapped in a compact E-Ink display that runs for years on a pair of AA batteries. It skips WiFi, Alexa, Google Home, Apple HomeKit, and Matter entirely, connecting only through its own app and Home Assistant, so it suits buyers who want a precise standalone gauge rather than a fully networked smart sensor. Reviewers consistently praise its calibration and build quality, sometimes comparing it favorably to pricier professional gear, while pointing out that the on-screen numbers, especially humidity, could be larger and that alerts aren't deeply customizable. For monitoring a nursery, workspace, or a sensitive collection like instruments or art, and for buyers who don't need remote or voice-assistant access, it's a trustworthy pick, though the price feels high for what is ultimately a simple, connectivity-light device.

Best for
  • Accuracy-focused buyers
  • Nurseries and workspaces
  • Home Assistant users
  • Standalone offline monitoring

Pros

  • Accurate, well-calibrated temperature and humidity readings that hold up against other devices
  • E-Ink display stays legible without ever needing a backlight
  • Compact, lightweight design that's easy to carry between rooms
  • AA batteries deliver years of use before a change is needed
  • History logging tracks trends over time, not just a single reading
  • Bluetooth data can feed Home Assistant automations for tech-savvy users

Cons

  • No WiFi; Bluetooth-only range means you must be near the sensor for a live reading
  • No Alexa, Google Home, Apple HomeKit, SmartThings, IFTTT, or Matter support
  • On-screen numbers, especially humidity, are smaller than some buyers would like
  • Alert thresholds are basic rather than fully customizable
  • No weather resistance rating, so it's indoor-use only
  • Premium price for a sensor with this limited connectivity

Who is the Aranet2 HOME for?

The Aranet2 HOME is aimed at buyers who care more about accurate, dependable temperature and humidity readings than about smart-home bells and whistles. Its Bluetooth-only connection and lack of automations mean it works best as a standalone gauge you check on the device itself or in its app, rather than a sensor that pushes alerts to your phone from anywhere. Reviewers use it to watch conditions in offices, nurseries, basements and attics, and to protect sensitive items like wooden musical instruments or art from humidity and temperature swings. Tech-savvy buyers who run Home Assistant get an extra layer of usefulness, since the sensor's Bluetooth data can feed into their own automations even though the device has no native automation engine of its own.

What buyers love

The most consistent praise is for accuracy: several reviewers compared the Aranet2 HOME side by side with other thermometers and hygrometers, including professional-grade equipment, and found it held up well or outperformed them. The E-Ink screen (sometimes described as a 'paper-white' or 'liquid paper' type display) draws little power and stays legible without a backlight, which owners tie directly to the sensor's long runtime on 2x AA batteries. Buyers also like that it logs history rather than just showing a live number, letting them track trends over weeks instead of catching a single snapshot, and several call out how light and compact it is for carrying between rooms or packing for travel.

What to know before you buy

The biggest trade-off is connectivity: with Bluetooth as the only wireless option and no WiFi, Zigbee, Z-Wave, Thread, or Matter support, you need to be within range of the sensor to pull a live reading, and there's no native Alexa, Google Home, Apple HomeKit, or Samsung SmartThings integration. The only smart-home platform it plugs into is Home Assistant. A few reviewers also felt the on-screen text, particularly the humidity figure, is printed smaller than the display's real estate would allow, and that the built-in threshold alerts are fairly basic rather than fully customizable. There's no weather resistance rating, so it's intended for indoor use, and more than one buyer flagged the price as high given how simple the feature set is.

Is the Aranet2 HOME worth it?

If what you want is a trustworthy, low-maintenance way to track temperature and humidity in a specific room, with years of battery life and a history log to back it up, the Aranet2 HOME delivers on that narrow promise well, and buyer sentiment on its accuracy and build quality is a strong point in its favor. It's a harder sell if you're expecting WiFi-based remote monitoring, voice-assistant control, or deep smart-home automation out of the box, since none of that is here without leaning on Home Assistant. Buyers who value precision and simplicity over connectivity tend to come away satisfied; those chasing a fully connected smart sensor should look elsewhere.

Frequently asked questions

Does the Aranet2 HOME connect to WiFi?

No. It relies on Bluetooth only to talk to its companion app, so getting a live reading on your phone requires being within Bluetooth range of the sensor. There's no built-in WiFi, Zigbee, Z-Wave, Thread, or Matter radio.

Does it work with Alexa, Google Home, Apple HomeKit, or SmartThings?

No, it has no native integration with any of those platforms. The only smart-home system it connects to is Home Assistant, through a community integration that reads its Bluetooth broadcasts.

How long does the battery last?

It runs on 2x AA batteries rated for about 4 years of use, one of the features reviewers most consistently praise.

Does the Aranet2 HOME have a screen?

Yes, an E-Ink display that shows temperature and humidity without a backlight. It's monochrome and not touch-enabled, and some buyers wish the numbers, particularly humidity, were printed larger.

Can it send alerts if temperature or humidity go out of range?

Yes, it supports both temperature and humidity threshold alerts, though reviewers describe the alerting as fairly basic rather than deeply customizable.

Can it trigger automations for other smart-home devices?

Not natively; it has no built-in automation engine. Its Home Assistant integration lets users with that platform build their own automations from its Bluetooth readings.

At a glance

Summary

Everything this temperature & humidity sensor supports, grouped by category.

Size & Materials
2.8 × 2.8 × 0.9 in (70 × 70 × 24 mm)3.5 oz (100 g)
Connectivity
Bluetooth
Display
E-Ink
Integrations
Home Assistant
Sensors
TemperatureHumidity
Alerts
Temperature AlertsHumidity Alerts
Features
History Records

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Company
Aranet logo

Aranet

4.7/ 5 avg ratingLatvia flagHeadquartered in Latvia

Aranet, a brand of SAF Tehnika in Latvia, makes wireless sensors best known for the Aranet4 CO2 monitor. Its devices use long-range, low-power radio to track CO2, temperature, humidity and pressure, with long battery life and an E-ink display. Aranet is widely used in offices, schools and homes for reliable, accurate CO2 monitoring.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

Dimensions

2.8 × 2.8 × 0.9 in (70 × 70 × 24 mm)

Weight

3.5 oz (100 g)

Power
Battery Type

2x AA

Battery Life

4 years

Connectivity
2.4 GHz WiFi

NO

5 GHz WiFi

NO

Bluetooth

YES

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

NO

Display
Screen

YES

Screen Type

E-Ink

Color Screen

NO

Touch Screen

NO

Screen Size

?

Screen Resolution

?

Weather Forecast

NO

Time

NO

Date

NO

Integrations
Google Home

NO

Alexa

NO

Aranet sensors are Bluetooth instruments read by the Aranet app or the Aranet PRO base station, with no Alexa skill

Apple HomeKit

NO

Samsung SmartThings

NO

Home Assistant

YES

Matter

NO

Sensors
Temperature

YES

Humidity

YES

Atmospheric Pressure

NO

Air Quality

NO

Occupancy

NO

Alerts
Temperature Alerts

YES

Humidity Alerts

YES

Air Quality Alerts

NO

Low Battery Alerts

?

Features
Automations

NO

History Records

YES

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