---
product_id: 67353965
title: "SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer"
brand: "smart4house"
price: "FREE"
currency: GBP
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.uk/products/67353965-smart4house-s4h-tm-00-wireless-wifi-temperature-sensor-thermometer
store_origin: GB
region: United Kingdom
---

# WiFi-enabled real-time updates Battery-powered with AC/DC option Dual internal & external probes SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer

**Brand:** smart4house
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🌡️ Stay ahead of the curve—monitor smarter, live safer!

## Quick Answers

- **What is this?** SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer by smart4house
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/67353965-smart4house-s4h-tm-00-wireless-wifi-temperature-sensor-thermometer)

## Best For

- smart4house enthusiasts

## Why This Product

- Trusted smart4house brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Probe Precision:** Monitor both indoor and outdoor environments simultaneously with internal (0 to +50°C) and external (-30 to +50°C) probes for ultimate accuracy.
- • **Intuitive Mobile Control:** Adjust settings, view temperature history, and receive status updates via the sleek Smart4house app on iOS and Android—control at your fingertips.
- • **Compact & Versatile Design:** Lightweight (130g) with a 2-meter probe cable, powered by included AA batteries or AC/DC adapter, fitting seamlessly into any professional or home setup.
- • **Seamless WiFi Connectivity:** Stay effortlessly connected with real-time temperature updates sent directly to your smartphone app every 15 minutes or on your custom schedule.
- • **Smart Alerts & Thermostat Mode:** Get instant notifications when temperatures breach your preset limits—perfect for safeguarding sensitive goods or loved ones’ environments.

## Overview

The SMART4HOUSE S4H-TM-00 is a dual-probe wireless WiFi temperature sensor designed for precise indoor and outdoor monitoring. Compatible with iOS and Android, it delivers customizable real-time updates and alerts via the Smart4house app. Powered by 2 AA batteries or AC/DC, it features a 2-meter cable and supports thermostat mode with adjustable temperature limits, making it ideal for professional environments like delis or home use where temperature control is critical.

## Description

Product Description The temperature sensor is fitted with an internal and external probe and with a 2m long cable. The sensor can be used as a simple temperature probe or as a thermostat with two adjustable temperature limits. Information about temperature is sent from the sensor to the cloud via Wi-Fi and the home AP at 15-min, 30-min, 1-hour, 2-hour or 4-hour intervals. In the thermostat mode, notifications are sent outside of the selected time intervals when the temperature falls below or exceeds the preset limit. Information on the cloud is sent to your smartphone, where you can display it using the Smart4house application as a numeric value or in the form of a diagram. You can use your smartphone to set or change the display mode, message sending intervals or monitored temperature limits. The measuring range of the internal probe is from 0 to +50C, and the external sensor range is from -30 to +50C. Safety Warning For indoor use only. Minimal separation distance between persons and sensor must be 20 cm (7.87 inch) P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Legal Disclaimer Must be 18 years old See more

Review: Excellent, very impressed - I am now 4 weeks into using this product so feel far better placed to review it with evidence. I am well impressed. This is a very good product that works brilliantly well. On 3 occasions thus far it's detected a slight variance in the freezer temperature and on each occasion there was indeed an issue which allowed me to address the problem and save the loss of the freezer contents. My initial set up was incorrect as I'd used the wrong sensor connection so that was 100% user error but once corrected it has worked perfectly. I strongly recommend using a mains supply which is nothing more than a standard mobile phone charger / micro USB connector. On mains I set up for 15 minute updates as this frequency depletes the battery and it functions perfectly. This is Czech built product and I remain of the opinion the plastic build is very flimsy and not at all robust. My installation is intended to monitor an elderly relatives freezer. Assembly is simplicity as there are only 3 constituent parts - the main unit; the wired probe and the batteries and that's it. The accompanying software (downloaded from Apple Apps) is also as simple as it gets. The instructions are pictorial as opposed to written and are not complicated. I must however say the actual setting up of the device was a little cumbersome and took several efforts. Initially you instruct your iPhone which device its "looking for" then there's a bit of faffing about getting the device to recognise your WiFi using its own Smart4house WiFi software. Then you switch the App off and restart it and Hey Presto. Except there was no Hey and also Prestos were a bit thin on the ground!! Even after about 10 attempts it wouldn't link. I then relocated it right next to the BT Hub and started from scratch and suddenly both Hey and Presto appeared.
Review: Works great once you get past the set up instructions. - The instruction manual provided isn't the greatest, so I had a couple of issues when setting this up. However once set up it works really well, and as far as I could find is the only WIFI temperature sensor in the market place.

## Features

- WiFi Temperature probe/ Thermostat
- WiFi SensorFitted with an internal and external probeUseful for delis, etc.Internal probe range is from 0 to +50
- Wifi Temperature Sensor - for iOS and Android
- Information about status change to app or e-mail
- The status and history of the sensor in app.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00Q3DK5FI |
| Batteries | 2 AA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Battery description | 2 AA batteries |
| Certification | FCC/CE/IC |
| Colour | White |
| Cord length | 2 Metres |
| Customer Reviews | 3.0 3.0 out of 5 stars (10) |
| Date First Available | 6 Mar. 2015 |
| Extension Length | 2 meters |
| Item Package Quantity | 1 |
| Item Weight | 130 g |
| Item model number | S4H-TM-00 |
| Manufacturer | Spel a.s. |
| Part Number | S4H-TM-00 |
| Power Source | AC/DC |
| Product Dimensions | 10.3 x 9 x 2.1 cm; 130 g |
| Special Features | Wireless |

## Images

![SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer - Image 1](https://m.media-amazon.com/images/I/3101BagmStL.jpg)
![SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer - Image 2](https://m.media-amazon.com/images/I/31bvu2EW6GL.jpg)
![SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer - Image 3](https://m.media-amazon.com/images/I/41crGvc0kpL.jpg)
![SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer - Image 4](https://m.media-amazon.com/images/I/41fWpBKrnaL.jpg)
![SMART4HOUSE S4H-TM-00 Wireless WiFi Temperature Sensor Thermometer - Image 5](https://m.media-amazon.com/images/I/41v4pwgMWdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, very impressed
*by 2***. on 29 April 2017*

I am now 4 weeks into using this product so feel far better placed to review it with evidence. I am well impressed. This is a very good product that works brilliantly well. On 3 occasions thus far it's detected a slight variance in the freezer temperature and on each occasion there was indeed an issue which allowed me to address the problem and save the loss of the freezer contents. My initial set up was incorrect as I'd used the wrong sensor connection so that was 100% user error but once corrected it has worked perfectly. I strongly recommend using a mains supply which is nothing more than a standard mobile phone charger / micro USB connector. On mains I set up for 15 minute updates as this frequency depletes the battery and it functions perfectly. This is Czech built product and I remain of the opinion the plastic build is very flimsy and not at all robust. My installation is intended to monitor an elderly relatives freezer. Assembly is simplicity as there are only 3 constituent parts - the main unit; the wired probe and the batteries and that's it. The accompanying software (downloaded from Apple Apps) is also as simple as it gets. The instructions are pictorial as opposed to written and are not complicated. I must however say the actual setting up of the device was a little cumbersome and took several efforts. Initially you instruct your iPhone which device its "looking for" then there's a bit of faffing about getting the device to recognise your WiFi using its own Smart4house WiFi software. Then you switch the App off and restart it and Hey Presto. Except there was no Hey and also Prestos were a bit thin on the ground!! Even after about 10 attempts it wouldn't link. I then relocated it right next to the BT Hub and started from scratch and suddenly both Hey and Presto appeared.

### ⭐⭐⭐⭐ Works great once you get past the set up instructions.
*by A***R on 10 August 2016*

The instruction manual provided isn't the greatest, so I had a couple of issues when setting this up. However once set up it works really well, and as far as I could find is the only WIFI temperature sensor in the market place.

### ⭐ Android support ended. Loyal customers out of pocket
*by J***Y on 9 September 2020*

Very effective for a time. But it seems that the company have discontinued android support this making it worthless if not an apple user

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/67353965-smart4house-s4h-tm-00-wireless-wifi-temperature-sensor-thermometer](https://www.desertcart.co.uk/products/67353965-smart4house-s4h-tm-00-wireless-wifi-temperature-sensor-thermometer)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-28*