# X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors

X-Sense STH0A31 is a Wi-Fi thermometer and hygrometer with an LCD, three sensors and a base station. It offers app monitoring, configurable alerts and temperature and humidity history, but requires a 2.4 GHz Wi-Fi network.

- [Original product page](https://best-deals.pro/product/x-sense-sth0a31-wifi-thermometer-hygrometer)
- [View offer](https://best-deals.pro/visit/x-sense-sth0a31-wifi-thermometer-hygrometer)
- Market: US
- Language: en-US
- Currency: USD
- Brand: X-Sense
- Model: STH0A31
- Category: Home & Kitchen > Heating, Cooling & Air Quality > Environmental Thermometers & Hygrometers
- Price: 42.99 USD
- Previous price: 52.99 USD
- Discount: 19%
- Price checked: 2026-11-14T09:42:05.667Z
- Rating: 4.5 / 5
- Reviews: 289

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- App provides remote temperature and humidity monitoring, graphs, and maximum, minimum and average readings over time.
- Set temperature and humidity thresholds for phone notifications and a base-station alarm.
- The display includes comfort indicator icons with customizable settings.
- The app supports switching between °F and °C and allows up to 12 users to monitor.

## Pros

- Three sensors and a base station support monitoring across more than one location, according to the product title.
- App graphs and summary readings help track changing conditions over time.
- Both phone notifications and an audible base-station alarm are available when readings exceed configured ranges.

## Cons

- Wi-Fi connection is limited to 2.4 GHz, so a 5.0 GHz-only network is incompatible.

## Specifications

### Identity
- Brand: X-Sense
- Model: STH0A31
- Color: Black
### Dimensions and installation
- Dimensions listed: 2.7"W x 3"H
- Mounting types listed: Tabletop, Wall Mount
### Monitoring and connectivity
- Wi-Fi compatibility: Compatible only with 2.4 GHz Wi-Fi \(incompatible with 5.0 GHz\); connects to the X-Sense Home Security App via the included base station
- Temperature accuracy: ±0.36°F \(±0.2°C\)
- Humidity accuracy: ±2% between 0 and 99%
- Humidity range: 0 and 99%
### Power
- Battery description: 6 AA alkaline batteries

## Before you buy

- The listing gives a 0% to 99% RH operating range in its details but states accuracy as ±2% between 0 and 99% in the feature description. It also describes accuracy in both ±0.2°C and ±0.36°F terms. Check the selected listing for the precise stated conditions. The app requires the included base station and 2.4 GHz Wi-Fi. The product details list six AA alkaline batteries, but the package contents are not specified.

## A good fit for

- People who want app-based temperature and humidity checks in multiple areas, including RV monitoring.
- Buyers who want threshold notifications and historical graphs for indoor conditions.

## Less suited to

- Anyone whose Wi-Fi network only provides 5.0 GHz connectivity.
- Buyers seeking a clearly documented package inventory before ordering.

## Customer feedback

Customer feedback reports easy setup and Wi-Fi connection, useful temperature and humidity tracking, and remote checks, including for RV monitoring. The product listing describes app graphs and remote monitoring that align with those reported uses. Temperature monitoring feedback is mixed, so buyers who depend on readings for a specific application should consider that variation. Aggregate ratings lean positive overall but do not explain individual experiences.
- Positive themes: Customers report straightforward setup and Wi-Fi connection.
- Positive themes: Feedback highlights perceived accuracy, data tracking and remote monitoring.
- Mixed feedback: Temperature monitoring feedback is mixed.

## Frequently asked questions

### Does the STH0A31 work with 5.0 GHz Wi-Fi?
No. The listing says it is compatible only with 2.4 GHz Wi-Fi and connects to the X-Sense Home Security App through the included base station.
### Can it send alerts when readings cross a threshold?
Yes. The listed features include phone notifications and a base-station alarm for temperature or humidity outside a set range. A phone low-battery warning is also listed.
### What can the app show?
The listing describes remote temperature and humidity monitoring, graphs, maximum, minimum and average readings over time, and switching between Fahrenheit and Celsius.
### Are batteries included?
The details list six AA alkaline batteries, but the package contents are not provided. Confirm whether batteries are included in the selected listing.

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## Images

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 1](https://best-deals.pro/i/qXbiElEWRbXXPkUj_12EDTFEbxgwrJ6qBhqVGHsKXfUyuNCXkhB9qGATOXjAlZEZR4LH1SNpx4F-cHJcwIpCfq111QYCr4uJoywNa79eoogIg0noKa-b.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 2](https://best-deals.pro/i/uZQFrKNkCkSnjii6AP-mscPspidNv1ThEG7yrmPnmvHjXy0R_kShX6PczNbj6yCwZkt12r1pTg54Tqn9XSBF34bgs3zWdNMTFITPOh2qlClvWlMJ16Y_.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 3](https://best-deals.pro/i/HjahvuRDYORYnBHwJ0br2i0GF3bJfbxE9RsGjPGyNphT7XN1miv55M5Whfz71toAqPeaOUnR19gTrxOhJDFyH-s3r7PIfpXsLKB1qOo3GtMnGoGg1sg6.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 4](https://best-deals.pro/i/eHQ_NEA5ev5V3jqn9aQD1KMLfSK8HhZSJwM77FJk62FgWhh-sdlZUwGPnQBJmHoZ010JjH3b-4JTGaQCOL2L0_TFEv4TLHkkP3GeIV0GWWGM5N30voFe.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 5](https://best-deals.pro/i/Z0e3080vmA94y0UNQTLdy86Yicw8rt9yMpGadKQ9CXGPPNwVjsmdVCVzKN6L13FJbdNUMr29MjxpNCB5GuOkXBdtUNO-XyQwe7eEoe0GAxaKWMqbA9qS.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 6](https://best-deals.pro/i/9ViCCWdS9jdGwh-TO8BaVT_K6ryr10KQDjAoapVVFzGnoPxh2dSQlKoge154JiY8v03hCmBpSewSAgQj_DelY9sA48HmditT9bWnuFVIYuBgwQkJkyMl.jpg)

![X-Sense STH0A31 Wi-Fi Thermometer Hygrometer with LCD and 3 Sensors — 7](https://best-deals.pro/i/_nhDB7k5-rlsZUe8MDKfKwOfwtrjivFby3bBVVHdVPOhTT9jbdVRgUttkNY5_7TGPVkYaHhXx6EUdKozGL_WcnMLWeQn6rn8gTQyTfjT0LIublFOJsIO.jpg)