light sensor connected to a temp and humidity data logger via a cable against a white background
Light, temperature and RH data logger with PAR sensor in greenhouse
PAR sensor attached to a wireless temp/RH data logger by a cable
Part Number -

MX2308

HOBO MX2308 Temp/RH/PAR Data Logger

Measures Temperature, RH & Photosynthetically Active Radiation (PAR) with LI-COR PAR sensor

$600.00 USD
High-precision monitoring of PAR, temperature, and humidity with effortless Bluetooth data offload, ideal for monitoring environmental conditions—from agricultural operations to academic research.

Important Information

Requires a compatible mobile device or Windows computer and the HOBOconnect app. System requirements for the app can be found at bottom of the HOBOconnect software page.

Frequently Bought Together

light sensor connected to a temp and humidity data logger via a cable against a white background
This item: HOBO MX2308 Temp/RH/PAR Data Logger
600.00
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Total price: 720

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Overview

Rugged and Bluetooth-enabled, the MX2308 delivers research-grade monitoring of key growing conditions—photosynthetically active radiation (PAR), temperature and relative humidity—all in a single device. Whether you’re growing plants in a commercial greenhouse, managing indoor vertical farms, fine-tuning conditions in hydroponic systems, or conducting agricultural or ecological research, the MX2308 gives you the data you need to optimize conditions for growth, health, and productivity.

Built for simplicity and flexibility, this all-in-one logger integrates with the LI-COR® 190R PAR sensor, the industry standard for light measurement that's trusted by researchers worldwide for its precision in measuring photosynthetically active radiation (PAR). 

IMPORTANT NOTE: For mounting, an M-PLT and 2003S Leveling Fixture are required. Mounting to poles or pipes require an M-BRK and 2003S. 

This versatile logger is designed to operate reliably across diverse environments, from high-tech vertical farming racks to outdoor experimental plots to support informed decisions around lighting, ventilation, and irrigation without the complexity or high costs of traditional monitoring systems:

Examples of Monitoring Applications for the MX2308 Temp/RH/PAR Logger

  • Growers, Farmers & Producers:

    Helps optimize growing conditions, improve yield consistency, and reduce disease risk for commercial greenhouse and indoor farming operators and hydroponic/aquaponic growers by monitoring where it matters most.

  • Researchers & Educators:

    Wireless setup and data retrieval enable flexible deployment across experimental sites, with data quality ideal for agricultural researchers, plant scientists, and university programs without the budgetary or logistical barriers typical of research-grade systems. 

  • Ag Tech & Innovation Teams:

    Ease of deployment and integration-ready data formats make an ideal sensor platform for prototyping or scaled trials needed for companies innovating in lighting optimization and climate control solutions.

Setup and data retrieval are seamlessly simple—no cables or additional download devices needed using the free HOBOconnect app on your phone or tablet. Effortlessly configure the logger and download data via Bluetooth (up to a 100 ft range), which allows you to deploy in and download data from hard-to-reach spots.

Expand your remote monitoring by adding an MX Data Plan, which allows you to upload data to LI-COR Cloud remote software for further analysis, sharing, and more. 

Documents

Getting Started with MX Data Loggers

This Getting Started guide will walk you through the basic steps of data logging, setting up your new data logger, downloading and sharing data, and the option to upload your data to the cloud.
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MX2308 Temp/RH/PAR Data Logger User Manual

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HOBO® Mounting Accessories for LI-COR® Light Sensors Install Guide

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