HOBO Temperature/RH Data Logger
Play Video
Product Image Viewer
˂
  • MX2301A
  • MX2301A
  • MX2301A
  • MX2301A
  • MX2301A
˃

HOBO Temperature/RH Data Logger

Part # MX2301A
 
Bluetooth Low Energy (BLE)
 

The HOBO MX2300 data logger requires a compatible mobile device and the HOBOconnect app. System requirements for the app can be found at the bottom of the HOBOconnect software page.

Learn More

Overview

The HOBO MX2301 is a weatherproof data logger with built-in temperature and relative humidity sensors. Leveraging Bluetooth Low Energy, the logger enables easy, fast setup and data download directly from your mobile device with Onset's free HOBOconnect app. The MX2301 provides high-accuracy measurements in harsh outdoor environments.

Add the MX Gateway for remote access to your data in Onset's cloud-based HOBOlink software.

You can download the HOBOconnect app here: 

  

  • Convenient wireless setup and download via Bluetooth Low Energy (100-foot range)
  • Retrieve data in hard-to-reach locations
  • Visual alarms alert you to out-of-range conditions
  • Compact, weatherproof housing with built-in mounting
  • View current data in real-time with Onset’s free HOBOconnect app
  • Share downloaded data easily from your mobile device
  • Accuracy: +/- 0.2C° and +/- 2.5% RH

In what environment does this operate?

This operates in indoor and outdoor environments.

What measurements does this support?

The supports the following measurements: Dew Point, Relative Humidity and Temperature

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Temperature Sensor
Range MX2301A and MX2305 internal sensors: -40 to 70°C (-40 to 158°F)
MX2302A external temperature sensor: -40 to 70°C (-40 to 158°F)
MX2303 and MX2304 external sensors: -40 to 100°C (-40 to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year
Accuracy ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F)
±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F)
±0.25°C from 70 to 100°C (±0.45 from 158 to 212°F), MX2303 and MX2304 only
Resolution MX2301A and MX2302A: 0.02°C (0.036°F)
MX2303, MX2304, and MX2305: 0.04°C (0.072°F)
Drift <0.01°C (0.018°F) per year
Relative Humidity Sensor* (MX2301A, MX2302A only)
Range 0 to 100% RH, -40° to 70°C (-40° to 158°F); exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
Accuracy ±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% RH and above 90% RH ±5% typical
Resolution 0.01%
Drift <1% per year typical
Response Time (typical, to 90% of change)
Temperature Without Solar Radiation Shield With RS1/M-RSA Solar Radiation Shield With RS3-B Solar Radiation Shield
MX2301A
internal sensor
17 minutes in air moving 1 m/sec 24 minutes in air moving 1 m/sec NA
MX2302A
external sensor
3 minutes, 45 seconds in air moving 1 m/sec 7 minutes, 45 seconds in air moving 1 m/sec 6 minutes, 30 seconds in air moving 1 m/sec
MX2303/MX2304
external sensors
3 minutes in air moving 1 m/sec; 20 seconds in stirred water 7 minutes in air moving 1 m/sec 4 minutes in air moving 1 m/sec
MX2305
internal sensor
17 minutes in air moving 1 m/sec 24 minutes in air moving 1 m/sec NA
RH Without Solar Radiation Shield With RS1/M-RSA Solar Radiation Shield With RS3-B Solar Radiation Shield
MX2301A
internal sensor
30 seconds in air moving 1 m/sec 40 seconds in air moving 1 m/sec NA
MX2302A
external sensor
15 seconds in air moving 1 m/sec 30 seconds in air moving 1 m/sec 30 seconds in air moving 1 m/sec
Logger
Operating Range -40° to 70°C (-40° to 158°F)
Radio Power 1 mW (0 dBm)
Transmission Range Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard Bluetooth Low Energy (Bluetooth Smart)
Logging Rate 1 second to 18 hours
Logging Modes Fixed interval (normal, statistics) or burst
Memory Modes Wrap when full or stop when full
Start Modes Immediate, push button, date & time, or next interval
Stop Modes When memory full, push button, date & time, or after a set logging period
Time Accuracy ±1 minute per month 0° to 50°C (32° to 122°F)
Battery Type 2/3 AA 3.6 Volt lithium, user replaceable
Battery Life 2 years, typical with logging interval of 1 minute and Bluetooth Always On enabled; 5 years, typical with logging interval of 1 minute and Bluetooth Always On disabled. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.
Memory MX2301A and MX2302A: 128 KB (63,488 measurements, maximum)
MX2303, MX2304, and MX2305: 128 KB (84,650 measurements, maximum)
Full Memory Download Time Approximately 60 seconds; may take longer the further the device is from the logger
Dimensions Logger housing: 10.8 x 5.08 x 2.24 cm (4.25 x 2.0 x 0.88 in.)
External temperature sensor diameter: 0.53 cm (0.21 in.)
External temperature/RH sensor diameter: 1.17 cm (0.46 in.)
External sensor cable length: 2 m (6.56 ft)
Solar radiation shield bracket: 10.8 x 8.3 cm (4.25 X 3.25 in.)
Weight Logger: 75.5 g (2.66 oz)
Solar radiation shield bracket: 20.4 g (0.72 oz)
Materials Acetal, silicone gasket, stainless steel screws
Environmental Rating NEMA 6 and IP67
CE Compliant The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
FCC Logo Australia/New Zealand General Compliance mark  Japanese Telecom and Radio Certificaiton Mark South Korea KC Certification for Electrical and Electronic Products  

*Per RH sensor manufacturer data sheet

    • HOBO MX2301 Temp/RH Data Logger
    • Screws
    • Cable ties

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below. Our user forum can also be a valuable resource for questions, use cases and general feedback. Share with us today, here!

Customers Also Bought

M-RSA

Preassembled for quick deployment, the solar radiation shield is recommended for temperature and relative humidity measurement accuracy in locations exposed to direct or reflected solar radiation. Mounts on tripods, masts, or flat vertical surfaces. The following loggers require mounting brackets for use with the M-RSA:

Add to Cart
Compare Product

Compare
MX2300-RS-BRACKET

This bracket is required for mounting HOBO MX2301 and MX2305 loggers in either an RS1 or M-RSA solar radiation shield. 

Add to Cart
Compare Product

Compare
RS3-B

Use the RS3-B Solar Radiation Shield with HOBO external sensors for improved temperature measurement accuracy in locations exposed to sunlight. The small size and unobstructed airflow of this shield provides a faster response to changing conditions than larger radiation shields.

The RS3-B Solar Radiation Shield works with most of Onset’s external temperature and temperature/relative humidity sensors, including those for our award-winning HOBO Weather Station products.

For customers looking for a radiation shield large enough to mount a HOBO data logger inside it, Onset also offers two other models of solar radiation shields; the RS1 and the pre-assembled M-RSA

 

Add to Cart
Compare Product

Compare

Recently Viewed