Onset MX2300 Specifications
NEW HOBO MX2300
Series Loggers
Bluetooth (BLE) Weatherproof loggers
for outdoor temperature and humidity
measurements
With Onset’s new HOBO MX2300 Series Temp/
RH loggers, field data collection has never
been easier. You can set up and offload loggers
wirelessly from your mobile device – eliminating
the need to take a laptop or data shuttle into the
field to retrieve data.
Key Advantages:
• Weatherproof housing for use in outdoor or condensing
environments
• High-accuracy measurements
• RH sensor provides superior recovery from condensing conditions
• Small-diameter, external sensor versions for measurements
in tight spaces
• Wireless setup & download with Bluetooth Low Energy (BLE)
Supported Measurements:
Temperature, Relative Humidity, Dew Point
Minimum System Requirements:
HOBOmobile Mobile
device
Choice of Models
The HOBO MX2300 Series offers five models
covering a broad range of outdoor monitoring
applications, from agricultural research to forest ecology
studies. The series includes internal sensor models that are
highly durable and easy to deploy, and external probe models that
are well-suited for monitoring conditions in soils, water, walls, and more.
For complete information and accessories, please visit: www.onsetcomp.com
Part number
MX2301
(Internal Temp/RH)
MX2302
(External Temp/RH)
MX2303
(2x External Temp)
Temperature Sensor
Range 40 to 70°C (-40 to 158°F)
Accuracy
Resolution 0.04°C (0.072°F)
Drift <0.01°C (0.018°F) per 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
-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
Relative Humidity Sensor (MX2301, MX2302 only)
Range
Accuracy
Resolution 0.05%
Drift <1% per year typical
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
Logger
Memory 128 KB (84,650 measurements, maximum)
Operating Range -40° to 70°C (-40° to 158°F), IP67 and NEMA#6
Transmission Range Approximately 30.5 m (100 ft) line-of-sight
Logging Rate 1 second to 18 hours
Dimensions Logger housing: 10.8 x 5.08 x 2.24 cm (4.25 x 2.0 x 0.88 in.)
Mobile Device Compatibility iOS 8.3, 8.4 & 9.0, and Bluetooth 4.0 or later
CE compliant Yes
MX2304
(External Temp)
MX2305
(Internal Temp)
40 to 70°C
(-40 to 158°F)
Contact Us
Sales (8am to 5pm ET, Monday through Friday)
Email sales@onsetcomp.com
Call 1-508-759-9500
In U.S. toll free 1-800-564-4377
Fax 1-508-759-9100
Technical Support (8am to 8pm ET, Monday through Friday)
Contact Product Support onsetcomp.com/support/contact
Call 1-508-759-9500
In U.S. toll free 1-877-564-4377
Onset Computer Corporation
470 MacArthur Boulevard
Bourne, MA 02532
Copyright© 2016 Onset Computer Corporation. All rights reserved. Onset, HOBO, HOBOware are registered trademarks of Onset Computer Corporation. Other
products and brand names may be trademarks or registered trademarks of their respective owners. Patented technology (U.S. Patent 6,826,664) MKT1181-1216
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