X-Sense STH54 Wi-Fi Thermometer Hygrometer

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Product guide

X-Sense STH54 Wi-Fi Thermometer Hygrometer

The X-Sense STH54 Wi-Fi Thermometer Hygrometer monitors temperature and humidity across multiple locations, with app alerts and historical graphs. Its listed three-sensor and base-station kit is suited to people who want remote monitoring, though customer feedback describes mixed connectivity and accuracy experiences.

At a glance

App notifications can flag temperature or humidity outside preset ranges and low battery.
Graphs show minimum, maximum and average values across hourly, daily, monthly and yearly views.
Listing claims a sensor-to-base-station range of up to 1,700 ft (500 m) and support for up to 10 sensors.
Compatible with Alexa, according to the listing.

Price

£45.58Save 24%

Reference price: ~~£59.99~~

Price checked: 12 Nov 2026

View offer

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Pros and cons

Pros

The listed three sensors and base station can monitor multiple locations from one kit.
App alerts and stored graphs are useful for tracking changing conditions remotely.
Customer feedback reports ease of setup and versatility, including use in reptile rooms.

Technical specifications

15 specifications

Identity
Brand	X-Sense

Measurement and monitoring
Temperature accuracy	±0.2°C (±0.36°F)
Temperature range	-20–60°C (-4–140°F)
Humidity accuracy	±2% RH
Operating humidity	0-100% RH
Sampling interval	3-second
Sensor-to-base-station range	up to 1,700 ft (500 m)
Maximum supported sensors	up to 10 sensors

Alerts and data
Notification alerts	temperature or humidity exceeds preset ranges or when the battery is low
Graph time views	yearly, monthly, daily, and hourly views
Data storage claim	nearly a year

Dimensions and installation
Mounting types listed	Free Hanging
Dimensions listed	23W x 94H millimetres

Power and appearance
Battery description	Alkaline
Colour	White

What to know before buying

The range and accuracy figures are manufacturer claims, not independently verified measurements. Actual wireless range may depend on the installation environment.
Customer feedback reports mixed experiences with connectivity and accuracy, so consider these uncertainties if stable remote readings are essential.

Listing details to confirm

The listing gives conflicting battery information: its contents list says 6 AAA(built-in), while another claim says 2 AAA batteries with a 1-year battery life. Confirm the selected listing's battery arrangement and lifespan before buying. The listing also describes an upper temperature rating of 140 Degrees Fahrenheit, while its feature text gives a measurement range of -20–60°C (-4–140°F).

What’s in the box

Included

3 sensors
6 AAA batteries (built-in)
1 base station
Power adapter
User manual

Who is it for?

A good fit for

People monitoring temperature and humidity in several rooms or areas, including greenhouses or reptile rooms.
Buyers who want smartphone alerts and historical measurement graphs.

Less suited to

Buyers who need customer feedback to establish consistently reliable connectivity or accuracy.
Anyone needing a confirmed battery quantity or lifespan without checking the selected listing.

X-Sense STH54 Wi-Fi Thermometer Hygrometer · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 96 ratings

5 stars70%70%
4 stars16%16%
3 stars4%4%
2 stars3%3%
1 star7%7%

Customer feedback highlights easy setup, versatility, and positive impressions of quality and value. Accuracy and connectivity receive mixed feedback, with some customers impressed by data accuracy and others reporting connection issues. These differences matter for a Wi-Fi monitor intended to provide remote readings and alerts, so buyers relying on consistent access should factor in the uncertainty.

Positive themes

Customers describe setup as easy.
Customers report versatility, including use in reptile rooms.
Customer feedback is positive about quality and value.

Mixed feedback

Accuracy feedback is mixed.
Connectivity feedback is mixed, with some customers reporting issues.

Frequently asked questions

How many sensors can the system support?

The listing says the system supports up to 10 sensors. The stated package contents list three sensors and one base station.

Does it send alerts to a phone?

The listing says smartphone notifications are available for preset temperature or humidity limits and low battery. Customisable alarms are also stated for the base station.

What is the stated wireless range?

The manufacturer claims up to 1,700 ft (500 m) between a sensor and the base station. This is a claim, and conditions at the installation site may affect range.

What batteries are included?

The package list says 6 AAA(built-in), but another listing claim specifies 2 AAA batteries and a 1-year battery life. Confirm the battery details for the selected listing.