SwitchBot Thermometer and Hygrometer Plus review – Easy, capable, and economical, oh my!

              SwitchBot Temp HumidityPlus 14

REVIEW – I’ve reviewed several SwitchBot products and have grown to appreciate them for their simplicity, utility, and budget-friendliness.  With a larger display, the new SwitchBot Temperature and Hygrometer Plus makes monitoring and adding automation triggers based on your home’s environment simple, cost-effective, and fun.

What is it?

The SwitchBot Thermometer and Hygrometer Plus is a battery-powered device that displays and is capable of using environmental conditions to trigger alerts and home automation events.

Hardware Specs:

  • Model W2301500
  • 79 x 65 x 22mm (3.1 x 2.5 x 0.9in)
  • Weight: 64g (2.3oz)
  • ABS housing
  • Connectivity: Bluetooth low energy 4.2 or above
  • Range: approximately 120m (394ft)
  • Compatible with iOS and Android
  • Operates on two AAA batteries
  • Battery life: approximately one year
  • Resolution: 0.1°C or 0.1°F, 1% relative humidity
  • Range: -20 to 80°C (-4 to 176°F), 0 to 99% relative humidity
  • Temperature Accuracy:
    • -20 to 0°C (-4 to 32°F)  ±0.4°C (0.7°F)
    • 0° to 65°C (32 to 149°F) ±0.3°C (0.5°F)
  • Humidity Accuracy:
    • 10 to 90% relative humidity ±2%
    • 0 to 10% relative humidity ±4%
  • One year limited warranty

What’s in the Box?

  • SwitchBot Thermometer and Hygrometer Plus
  • Two AAA batteries
  • Add-on 3M metal plate with adhesive backing
  • User manual

SwitchBot Temp HumidityPlus 05

Design and Features:

SwitchBot included the earlier version of their Thermometer and hygrometer I reviewed here.

Typical of SwitchBot products, the Plus version of the Thermometer and Hygrometer arrived in a colorful box with good packaging. No bumps or bruises to report.

SwitchBot Temp HumidityPlus 01

SwitchBot Temp HumidityPlus 02

Yay! Batteries included! The battery cover pops off easily without tools.

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The newer version is larger and easier to read than the earlier version.

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I especially liked the fold-out stand for tabletop use.

SwitchBot Temp HumidityPlus 06

Alternatively, the device can be placed on a ferrous metal surface with a built-in magnet. Nothing metal nearby? Not a problem! – SwitchBot includes a metal plate with adhesive to allow mounting almost anywhere.

SwitchBot Temp HumidityPlus 07

Like its predecessor, there is a single button on the back that toggles between Celsius and Fahrenheit as well as Bluetooth pairing.

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Paring was completed in a jiffy. It took only seconds to connect. The only difference in pairing between the Plus meter and the previous version is ensuring that “Meter Plus” is selected from the devices list.

SwitchBot Temp HumidityPlus 24

The app allows the naming of the Thermometer/Hygrometer and assignment to a specific room if desired.

SwitchBot Temp HumidityPlus 17

On the app’s home page, the current temperature and humidity are shown.

Opening the device, temperature, and humidity graphing by the hour, day, week, month, and year are available. Very nice!

SwitchBot Temp HumidityPlus 18

SwitchBot Temp HumidityPlus 19


SwitchBot Temp HumidityPlus 20SwitchBot Temp HumidityPlus 21

The app can be configured to alert you if the temperature or humidity falls outside (or inside) a specific range.

SwitchBot Temp HumidityPlus 09

If you need to calibrate the thermometer or humidity, you can do that too. SwitchBot includes an informative tutorial for each. Smooth!

SwitchBot Temp HumidityPlus 10

You can check the battery level and firmware version in the app too.

When connected with a separately sold SwitchBot hub, temperature and humidity readings can be settings can be accessed through Google Assistant, Amazon Alexa and, if you are in Japan, Clova). Integration with IFTTT makes the SwitchBot Thermometer/Hygrometer even more powerful. To save energy, I use the living room conditions to open and close my drapes if it gets hot or cold using SwitchBot Curtain Robots reviewed here. Very cool!

I use Amazon’s Alexa for voice commands. In the app and using verbal commands,  Alexa will definitively provide the temperature, but not the humidity. I hope this feature is added soon. IFTTT “sees” both temperature and humidity information so it’s not a big deal.

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SwitchBot Temp HumidityPlus 15

To date, I’ve had no problems or failures, consistent operation, and smooth integration from all of SwitchBot’s products. The SwitchBot Thermometer and Hygrometer Plus is no exception. At under $15, adding functionality to my home automation system is easy on the budget and frustration-free. I’ve added more of these to my garage, home theater, and 3D printer filament dryer. They’re great!

What I Like

  • Good battery life
  • Excellent history and graphing of temperature and humidity from the app
  • Remote connection available through a Switchbox hub (sold separately)
  • Alexa, Google, and IFTTT connected
  • Inexpensive

What I Would Change

  • Add humidity integration to Alexa

Final Thoughts

With their line of inexpensive yet capable gadgetry, SwitchBot has become one of my favorite suppliers of home automation. The SwitchBot Thermometer and Hygrometer Plus has all of the punch of the previous version, and the larger screen is easier to read for only a few dollars more. With only a few minutes of configuration, SwitchBot products work and hold up well, and are a great “bang for the buck.”

Price:  SwitchBot $13.49 and Amazon $14.99
Where to buy:  SwitchBot, Amazon
Source: The sample for this review was provided by SwitchBot

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