TempPro TP351 Bluetooth Thermometer Hygrometer, 2-Pack

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Product guide

TempPro TP351 Bluetooth Thermometer Hygrometer, 2-Pack

Pack: TempPro TP351 is a two-unit Bluetooth thermometer and hygrometer for monitoring indoor temperature and humidity through an app. It claims alerts, data export and up to two years of stored readings, but customer feedback reports inconsistent connectivity and poor battery life.

At a glance

Two sensors are intended to monitor separate indoor locations from a smart device.
The app is claimed to offer temperature and humidity alerts, a comfort indicator and data export.
Manufacturer claims up to two years of data storage, with charts across several time periods.

Price

£15.27Save 15%

Reference price: ~~£17.99~~

Price checked: 12 Nov 2026

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Often bought together

TempPro TP350 Bluetooth Room Thermometer, Indoor Hygrometer, Humidity Meter | Temperature Monitor with Smart App & Alerts, High Accuracy, 2-Year Data Record & Export, for Baby Room(Previously ThermoPro)

£11.87

Pros and cons

Pros

Two sensors and four AAA batteries are listed in the supplied contents.
App alerts and data export can help track changing conditions over time.
Temperature and humidity readings are intended to be monitored remotely over Bluetooth.

Cons

Customer feedback reports poor battery life, which may mean more frequent battery changes than expected.
Connectivity feedback is mixed, with some customers reporting connection problems.

Technical specifications

11 specifications

Identity
Brand	TempPro

Dimensions and installation
Mounting type listed	Freestanding
Weight listed	110 Grams

Measurement and monitoring
Temperature accuracy	plus_minus_0_point_3_degrees_celsius
Humidity accuracy	+/-2% RH
Refresh interval	10-second

Connectivity and app
Wireless connection	Bluetooth
Remote range claim	80M
Data storage and export claim	2 years
App chart tracking claim	online 1-year data chart tracking
Temperature units in app	Fahrenheit (℉) and Celsius (℃)

What to know before buying

The stated remote range of 80M is a manufacturer claim. The listing does not clarify the conditions under which that range applies. Customer feedback also reports mixed connectivity, so app monitoring may not be reliable in every setup.

Listing details to confirm

Although the listing describes the units as compact and portable, feedback says the device is not suitable for outdoor use. Treat it as an indoor monitor.

What’s in the box

Included

2 indoor thermometer hygrometers
User manual
4 AAA batteries

Who is it for?

A good fit for

People wanting app-based indoor temperature and humidity monitoring in two locations.
Greenhouse, incubator, bedroom or storage monitoring where app alerts and historical data are useful.

Less suited to

Outdoor monitoring, given customer feedback that it is unsuitable for outdoor use.
Buyers who need dependable connectivity or long battery life without checking whether reported limitations matter for their setup.

TempPro TP351 Bluetooth Thermometer Hygrometer, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 560 ratings

5 stars71%71%
4 stars13%13%
3 stars8%8%
2 stars3%3%
1 star5%5%

Customer feedback describes the humidity meter as useful and easy to set up, with positive comments about app functionality and value. Connectivity experiences are mixed, and battery life and outdoor suitability are concerns. Those points matter for a Bluetooth device intended for remote app monitoring, particularly if it will be relied on for continuous tracking. Aggregate ratings skew positive overall, but do not establish how well a unit will connect or how long its batteries will last in a specific setup.

Positive themes

Customers report that it works well and is easy to set up.
Feedback highlights app functionality, ease of use and value.

Negative themes

Customer feedback reports poor battery life.
Some customers report connection problems, and feedback questions outdoor suitability.

Mixed feedback

Connectivity receives mixed feedback.

Frequently asked questions

What is included in the listed package?

The manufacturer contents list specifies two indoor thermometer hygrometers, one user manual and four AAA batteries.

Can readings be checked in an app?

The listing claims Bluetooth app monitoring, temperature and humidity alerts, and a comfort indicator. Customer feedback reports mixed connectivity, so connection performance may vary.

How much history can the app store?

The listing claims up to two years of data storage and export. It also separately mentions online one-year chart tracking, so the stated storage and chart periods are not identical.

Is this suitable for outdoor use?

The listing describes portable placement, but customer feedback says it is not suitable for outdoor use. It is better considered for indoor monitoring.