---
product_id: 387313005
title: "TP357 Bluetooth Hygrometer Mini Room Thermometer Indoor with Alerts, Humidity Meter and Temperature Monitor with Smart App and Data Recording with Humidity Sensor for Baby Room Office"
brand: "thermopro"
price: "€ 22.21"
currency: EUR
in_stock: true
reviews_count: 12
category: "Thermo Pro"
url: https://www.desertcart.fi/products/387313005-tp357-bluetooth-hygrometer-mini-room-thermometer-indoor-with-alerts-humidity
store_origin: FI
region: Finland
---

# 2-year data storage 80m Bluetooth range 10s fast refresh rate TP357 Bluetooth Hygrometer Mini Room Thermometer Indoor with Alerts, Humidity Meter and Temperature Monitor with Smart App and Data Recording with Humidity Sensor for Baby Room Office

**Brand:** thermopro
**Price:** € 22.21
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the curve with smart climate control that’s always in your pocket!

## Quick Answers

- **What is this?** TP357 Bluetooth Hygrometer Mini Room Thermometer Indoor with Alerts, Humidity Meter and Temperature Monitor with Smart App and Data Recording with Humidity Sensor for Baby Room Office by thermopro
- **How much does it cost?** € 22.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/387313005-tp357-bluetooth-hygrometer-mini-room-thermometer-indoor-with-alerts-humidity)

## Best For

- thermopro enthusiasts

## Why This Product

- Trusted thermopro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Intuitive Comfort Icons:** Easy-to-read DRY/COMFORT/WET face indicators help you optimize your environment at a glance
- • **Precision You Can Trust:** ±0.5°C temperature & ±2%RH humidity accuracy for flawless indoor climate control
- • **Real-Time Comfort Alerts:** Smart app notifications instantly warn you when conditions stray from your ideal range
- • **Seamless Bluetooth Connectivity:** Stable 80m/260ft range keeps you connected across your entire home or office
- • **Historic Data at Your Fingertips:** Up to 2 years of stored temperature & humidity trends empower smarter lifestyle decisions

## Overview

The ThermoPro TP357 is a compact, battery-powered Bluetooth hygrometer and thermometer designed for precise indoor monitoring. Featuring ±0.5°C and ±2%RH accuracy, it updates readings every 10 seconds and offers an impressive 80m Bluetooth range. Its smart app delivers real-time alerts, intuitive comfort icons, and up to 2 years of data storage, making it ideal for managing baby rooms, offices, or any living space with effortless, data-driven insights.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Excellent Bluetooth thermostats - ⭐️⭐️⭐️⭐️⭐️ Excellent indoor thermometers – smart, accurate, and super easy to use I bought the ThermoPro TP357 (pack of 3) to monitor temperature and humidity in different rooms, and I’m genuinely impressed. The Bluetooth connection to my phone is seamless — the app pairs quickly and stays connected without any hassle. Being able to check readings straight from my phone is incredibly convenient, especially when the sensors are in different rooms. What really stands out is how much useful information they provide. You get clear temperature and humidity readings, history tracking, and min/max records, all laid out in a clean, easy-to-understand app. The displays on the units themselves are also bright and easy to read at a glance. They’re very easy to set up and use, even if you’re not particularly tech-savvy. Just pop in the batteries, pair them once, and that’s it — they just work. Overall, these feel accurate, reliable, and well-built, and having three in the pack makes them great value for money. Perfect for monitoring living spaces, bedrooms, grow areas, or anywhere you want to keep an eye on indoor conditions. Highly recommended 👍
Review: Neat indoor unit with OK software - Neat little units which set up easily. The bluetooth connection seems fairly reliable but, of course, has a very limited range through walls. The temperature calibration seems OK. The matching software displays sensible charts with an easy change between various standard views. The views are not customisable, however, and all scales are autmatic which means they change as you scroll the display. It would be better still if it would update data once in while when you are not active on the app, as it is tedious to wait for the download when you open the screen for one of the units. It would also be better if you could change between displays for one unit and the other with one click.

## Features

- High Accuracy and Fast Refresh: Bluetooth thermometer with smart temperature and humidity sensor is highly accurate for both temperature and humidity readings. The temperature is accurate to ±0.5°C while humidity is ±2%RH. Temperature and humidity meter are updated every 10 seconds to keep you informed of the latest changes in the air conditioner.
- Up to 80m Bluetooth Remote Range: Room thermometer nursery contains an enhanced Bluetooth Technology to produce a stable, reliable 80m/260ft Bluetooth remote range (no obstructions) to ensure you'll always have full home coverage
- Face Icon Comfort Indicators: Indoor thermometer for home features face icons comfort indicate DRY/COMFORT/WET air conditions in an easy to understand format and allow you to adjust your humidifier or dehumidifier accordingly
- Smart APP with Alerts: Set a temperature gauge range via the ThermoPro Sensor and instantly receive a phone notification if the temperature or humidity monitor levels fall outside of your range, allowing you to quickly react to make necessary adjustments
- Up to 2 Year Free Data Storage: Home temperature monitor displays an easy to use smart thermometer graph with Maximum 1 year time period so you can analyze your home's historic temperature and humidity data.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093PT1NL1 |
| Batteries | 1 AAA batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Battery Cell Type | Zinc Carbon |
| Best Sellers Rank | 315 in Garden ( See Top 100 in Garden ) 5 in Hygrometers |
| Colour | White-Bluetooth |
| Customer Reviews | 4.4 4.4 out of 5 stars (13,694) |
| Date First Available | 28 April 2021 |
| Display style | Lcd |
| Item Package Quantity | 1 |
| Item Weight | 55 g |
| Item model number | TP357 |
| Manufacturer | ThermoPro |
| Part number | TP357 |
| Plug profile | Tabletop |
| Power source type | Battery Powered |
| Product Dimensions | 12.7 x 12.7 x 2.5 cm; 55 g |
| Size | 1 Pack |
| Special Features | App Companion, Bluetooth Compatible, High Accuracy, Large Display, Programmable |
| Voltage | 1.5 Volts |
| tech_spec_battery_description_toys | 1.5 volt battery |

## Product Details

- **Battery description:** 1.5 volt battery
- **Brand:** ThermoPro
- **Colour:** White-Bluetooth
- **Mounting type:** Tabletop
- **Product dimensions:** 5.4W x 1.8H centimetres

## Images

![TP357 Bluetooth Hygrometer Mini Room Thermometer Indoor with Alerts, Humidity Meter and Temperature Monitor with Smart App and Data Recording with Humidity Sensor for Baby Room Office - Image 1](https://m.media-amazon.com/images/I/71yKIkl3ppL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: can this be used down Wi Fi, for remote monitoring?**
A: No, unfortunately not. It’s Bluetooth only

**Q: C temps set on unit OK but do not appear on smartphone app**
A: Tap the tree lines top left of home page in the app and select C or F

**Q: How many additional monitors does the app support? where can i buy them in uk, how much does each additional monitor cost and are they easy to set up**
A: Not sure how many devices you can link too but I have 5 set up and you can buy them on Amazon and ebay

**Q: The specs don't mention any internal memory- can the unit store data when disconnected for download later? Or is recording only done by the app?**
A: Data is stored in the device. A year apparently. When you connect a device via Bluetooth the data is copied to the app (and not deleted).  If you connect another device (and app) it too gets all the data. So we have a pair of Apple devices both with the data.  We have a couple of units, one where we collect data on a daily basis and another every couple of weeks. Both work well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Bluetooth thermostats
*by A***Y on 17 January 2026*

⭐️⭐️⭐️⭐️⭐️ Excellent indoor thermometers – smart, accurate, and super easy to use I bought the ThermoPro TP357 (pack of 3) to monitor temperature and humidity in different rooms, and I’m genuinely impressed. The Bluetooth connection to my phone is seamless — the app pairs quickly and stays connected without any hassle. Being able to check readings straight from my phone is incredibly convenient, especially when the sensors are in different rooms. What really stands out is how much useful information they provide. You get clear temperature and humidity readings, history tracking, and min/max records, all laid out in a clean, easy-to-understand app. The displays on the units themselves are also bright and easy to read at a glance. They’re very easy to set up and use, even if you’re not particularly tech-savvy. Just pop in the batteries, pair them once, and that’s it — they just work. Overall, these feel accurate, reliable, and well-built, and having three in the pack makes them great value for money. Perfect for monitoring living spaces, bedrooms, grow areas, or anywhere you want to keep an eye on indoor conditions. Highly recommended 👍

### ⭐⭐⭐⭐⭐ Neat indoor unit with OK software
*by K***D on 20 December 2025*

Neat little units which set up easily. The bluetooth connection seems fairly reliable but, of course, has a very limited range through walls. The temperature calibration seems OK. The matching software displays sensible charts with an easy change between various standard views. The views are not customisable, however, and all scales are autmatic which means they change as you scroll the display. It would be better still if it would update data once in while when you are not active on the app, as it is tedious to wait for the download when you open the screen for one of the units. It would also be better if you could change between displays for one unit and the other with one click.

### ⭐⭐⭐⭐ Fabulous thermometers but heavy on batteries
*by J***N on 8 January 2025*

I have several of these little thermometers which I will put anywhere where I feel it's important to keep an eye on temperature (and humidty) over time. They seem to be fairly accurate / consistent; when you line them up next to each other they all report the same temperature and humnidity data. The app works well and is easy to use. The only negative is the battery life - less than a month, which limits their use unless you're willing to replace batteries at a rapid rate. Bluetooth range is OK; full coverage in a standard construction UK house, but more difficult in areas of our home which are stone built with thick walls.

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-20*