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HOBO® MX2300 Series Data Logger Manual
MX2301A Model Shown
HOBO MX2300 Series
Data Logger
Models:
• MX2301A, temp/RH
• MX2302A, ext temp/RH
• MX2303, 2 ext temp
• MX2304, ext temp
• MX2305, temp
Included Items:
• Screws
• Cable ties
Required Items:
• HOBOconnect app
• Mobile device with
Bluetooth and iOS,
iPadOS®, or Android™, or a
Windows computer with a
native BLE adapter or
supported BLE dongle
Accessories:
• Solar radiation shield
(RS3-B for use with
MX2302A, MX2303, and
MX2304 models; RS1 or M-
RSA for use with MX2301A
and MX2305 models)
• Mounting bracket for solar
radiation shield (MX2300-
RS-BRACKET), for use with
MX2301A and MX2305
models
• Replacement battery
(HRB-2/3AA)
20923-O
The HOBO MX2300 series data loggers record and transmit temperature and/or relative
humidity (RH) in outdoor or indoor environments. These Bluetooth® Low Energy (BLE)-enabled
loggers are designed for wireless communication with a phone, tablet, or computer. Using the
HOBOconnect® app, you can easily configure the logger and then download logged data to view
or export for further analysis. The logger can calculate minimum, maximum, average, and
standard deviation statistics and be configured to indicate alarms at thresholds you specify. The
logger also supports burst logging in which data is logged at a faster interval when sensor
readings are above or below certain limits. The Temp and Temp/RH models have internal
sensors while the External Temp/RH, External Temp, and 2x External Temp include built-in
external sensors, offering a wide range of solutions for monitoring temperature and RH in
numerous applications.
Specifications
Temperature Sensor
Range
Accuracy
Resolution
Drift
Relative Humidity Sensor* (MX2301A, MX2302A only)
Range
Accuracy
Resolution
Drift
Response Time (typical, to 90% of change)
Temperature
MX2301A
internal sensor
MX2302A
external sensor
MX2303/MX2304
external sensors
MX2305
internal sensor
RH
MX2301A
internal sensor
MX2302A
external sensor
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
±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
MX2301A and MX2302A: 0.02°C (0.036°F)
MX2303, MX2304, and MX2305: 0.04°C (0.072°F)
<0.01°C (0.018°F) per year
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%
±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
0.01%
<1% per year typical
Without Solar
With RS1/M-RSA
Radiation Shield
Solar Radiation Shield
17 minutes in air
24 minutes in air
moving 1 m/sec
moving 1 m/sec
3 minutes, 45 seconds
7 minutes, 45
in air moving 1 m/sec
seconds in air
moving 1 m/sec
3 minutes in air
7 minutes in air
moving 1 m/sec; 20
moving 1 m/sec
seconds in stirred
water
17 minutes in air
24 minutes in air
moving 1 m/sec
moving 1 m/sec
Without Solar
With RS1/M-RSA
Radiation Shield
Solar Radiation Shield
30 seconds in air
40 seconds in air
moving 1 m/sec
moving 1 m/sec
15 seconds in air
30 seconds in air
moving 1 m/sec
moving 1 m/sec
With RS3-B Solar
Radiation Shield
NA
6 minutes, 30
seconds in air
moving 1 m/sec
4 minutes in air
moving 1 m/sec
NA
With RS3-B Solar
Radiation Shield
NA
30 seconds in air
moving 1 m/sec
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Related Manuals for Hobo MX2300 Series
Summary of Contents for Hobo MX2300 Series
- Page 1 HOBO® MX2300 Series Data Logger Manual The HOBO MX2300 series data loggers record and transmit temperature and/or relative humidity (RH) in outdoor or indoor environments. These Bluetooth® Low Energy (BLE)-enabled loggers are designed for wireless communication with a phone, tablet, or computer. Using the HOBOconnect®...
- Page 2 HOBO MX2300 Series Data Logger Manual Specifications (continued) 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...
- Page 3 HOBO MX2300 Series Data Logger Manual 2. Open the app and enable Bluetooth in the device settings if Logger Components and Operation prompted. Mounting 3. Press the button on the logger to wake it up. Holes 4. Tap Devices and then tap the logger tile in the app to connect to it.
- Page 4 HOBO MX2300 Series Data Logger Manual For example, select 30 days if you want the logger to Update the firmware on the logger. A logger log data for 30 days after logging begins. download is completed automatically at the beginning of the firmware update process.
- Page 5 HOBO MX2300 Series Data Logger Manual 5. Tap Alarms to open that area of the screen. logger switches to the faster logging rate and records data every 30 seconds until the temperature falls back to 85°F. At 6. Select Low if you want an alarm to trip when the sensor that time, logging resumes every 5 minutes at the fixed logging reading falls below the low alarm value.
- Page 6 HOBO MX2300 Series Data Logger Manual details on plotting and viewing the event. In addition, if interval is 1 minute and you select 5 seconds for the you stop the logger with a button push while in burst sampling rate, the logger takes 12 sample readings between...
- Page 7 HOBO MX2300 Series Data Logger Manual • When deploying an MX2302A logger, it is recommended To plot events, tap HOBO Files and select a file to open. that the sensor must be mounted vertically. If it must be mounted horizontally, then make sure the vent on the (if applicable) and then tap .
- Page 8 The service related to human safety is not allowed because this device may have the possibility of the radio interference. © 2016–2022 Onset Computer Corporation. All rights reserved. Onset, HOBO, HOBOconnect, and HOBOlink are registered trademarks of Onset Computer Corporation. App Store, iPhone, iPad, and iPadOS are service marks or registered trademarks of Apple Inc.
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