---
product_id: 81431060
title: "HOBO MX2304 Weatherproof Bluetooth Temperature Data Logger w/ External Sensor"
brand: "onset"
price: "£189.71"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/81431060-hobo-mx2304-weatherproof-bluetooth-temperature-data-logger-w-external-sensor
store_origin: GB
region: United Kingdom
---

# Bluetooth Smart LE wireless sync 2-year battery life Wide -40°C to 100°C range HOBO MX2304 Weatherproof Bluetooth Temperature Data Logger w/ External Sensor

**Brand:** onset
**Price:** £189.71
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the elements with precision you can trust!

## Quick Answers

- **What is this?** HOBO MX2304 Weatherproof Bluetooth Temperature Data Logger w/ External Sensor by onset
- **How much does it cost?** £189.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/81431060-hobo-mx2304-weatherproof-bluetooth-temperature-data-logger-w-external-sensor)

## Best For

- onset enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** Stay worry-free with a user-replaceable lithium battery that powers your logger for up to 2 years at 1-minute intervals.
- • **Smart App Integration:** Leverage the intuitive HOBOmobile app (Apple Store) for real-time data visualization and effortless device management.
- • **Seamless Bluetooth Sync:** Instantly stream temperature data to your smartphone or tablet with cutting-edge Bluetooth Smart LE technology.
- • **Ready for Outdoor Deployment:** Includes rugged external sensor, mounting screws, and zip ties—engineered for hassle-free installation in any weather.
- • **Precision Temperature Monitoring:** Capture ultra-accurate readings within ±0.20°C across a broad -40°C to 100°C range—perfect for demanding outdoor environments.

## Overview

The Onset HOBO MX2304 is a weatherproof Bluetooth temperature data logger featuring an external sensor designed for outdoor use. It offers a wide measurement range from -40°C to 100°C with ±0.20°C accuracy, wirelessly transmits data via Bluetooth Smart LE to smartphones or tablets, and boasts a user-replaceable lithium battery lasting up to 2 years. The package includes mounting hardware and supports seamless integration with the HOBOmobile app for real-time monitoring.

## Description

The HOBO MX2304 is a weatherproof data logger with one external temperature sensor. Leveraging Bluetooth Low Energy, the logger enables easy, fast set up and data download directly from your mobile device, and provides high-accuracy measurements in harsh outdoor environments.

## Features

- External Sensor for Temperature Measurements in an Outdoor Environment
- Wireless Transmission of Recorded Readings to Smartphones or Tablets Using Bluetooth Smart LE Communications
- -40°C to 100°C Measurement Range with a ±0.20°C (0°C to 70°C) Accuracy
- User-Replaceable Lithium Battery with 2 Year Typical Life (1 Minute Sampling Rate)
- Includes External Temp Sensor, Screws and Zip Ties for Mounting. HOBOmobile App Available on the Apple Store

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Onset Computer |
| Part Number | MX2304 |
| Item Weight | 2.66 ounces |
| Product Dimensions | 4.25 x 0.88 x 2 inches |
| Item model number | MX2304 |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Color | 1 |
| Style | Modern |
| Material | Plastic |
| Shape | Rectangular |
| Power Source | Battery Powered |
| Special Features | High Accuracy |
| Usage | Temperature |
| Included Components | Screws |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium Metal |

## Images

![HOBO MX2304 Weatherproof Bluetooth Temperature Data Logger w/ External Sensor - Image 1](https://m.media-amazon.com/images/I/31E9c5NwKjL.jpg)

## Frequently Bought Together

- Onset HOBO MX2304 Weatherproof Bluetooth Temperature Data Logger w/ External Sensor
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**Shop now:** [https://www.desertcart.co.uk/products/81431060-hobo-mx2304-weatherproof-bluetooth-temperature-data-logger-w-external-sensor](https://www.desertcart.co.uk/products/81431060-hobo-mx2304-weatherproof-bluetooth-temperature-data-logger-w-external-sensor)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*