MX2300-Series

HOBO MX Bluetooth Weatherproof Temperature and Humidity Loggers

Bluetooth Low Energy (BLE) 100-foot communications
Stores: 63,000-83,000 measurements
Accuracy: ± 0.2°C (± 0.4°F) and ± 2.5%RH
Multiple Start & Stop options

See Product Overview

MX2300-Series

From ^€ 229,63

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1 Variations available

See all series options below

Data Sheet

Product Overview

Accuracy Detail Temperature Sensor Accuracy: ± 0.25°C from -20° to 0°C, ± 0.2°C from 0° to 70°C
Approvals CE
Battery life 2 yr, typical with reading interval of 1 min
Battery Size and Type 2/3 AA Li-ion
Configuration HOBOmobile® app iOS
Data Interface Bluetooth
Data Interface Note Mobile Device Compatibility : iOS 8.3, 8.4 & 9.0, and Bluetooth 4.0 or later
Enclosure Ratings IP67, NEMA Type 6
Form factor Wall or Flat Surface
Form Factor Note A solar radiation shield is required if the MX2301A or MX2305 logger or the external sensors from an MX2302A, MX2303, or MX2304 logger will be in sunlight at any time.
Height 0.88 in
Length 2 in
Logging Modes burst, Fixed interval
Materials Acetal, Silicone, Stainless Steel
Measurement Range Note Temperature(MX2303,MX2304): -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
Measurement Type Temperature
Memory Modes stop when full, Wrap when full
Memory Note Approximately 60 seconds; may take longer the further the device is from the logger
Number of Measurements 1
Operating Temperature, Max 70 °C
Operating Temperature, Min -40 °C
Radio Power 1 mW
Samples,Max 84650 Samples, Interval Selectable 1 sec to 18hrs
Series ID MX2300-Series
Start Modes At set date and time, Button Push, Immediate Start, Next Interval
Stop Modes Button Push, When Memory is Full, At set date and time, At set Duration
Supply Power Type Battery
Temperature Accuracy ± 0.2 °C
Temperature Measurement, Min -40 °C
Temperature Resolution 0.04 °C
Temperature Sensor Drift < 0.01°C Per Year
Transmission Range 30.5 m
Weight 2.66 oz
Width 4.25 in

Supported Applications

The HOBO MX2300 Series are Bluetooth Low Energy (BLE) weatherproof loggers for outdoor temperature and, on select models, humidity measurement. Because loggers are set up and offloaded wirelessly from a mobile device, the series eliminates the need to carry a laptop or data shuttle into the field.

Outdoor temperature monitoring in a weatherproof housing suited to outdoor or condensing environments.
Combined temperature and humidity logging on the Temp/RH models, including a computed dew-point channel.
Wireless field data collection via the HOBOmobile app on a compatible mobile device.

Operating Conditions & Performance

Temperature range depends on whether a model uses an internal or external sensor. Internal-sensor models cover -40 to 70°C (-40 to 158°F), while external-sensor models reach -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.

Temperature 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.
Temperature resolution: 0.04°C (0.072°F); drift <0.01°C (0.018°F) per year.
Relative humidity (MX2301, MX2302 only): 0 to 100% RH, -40° to 70°C (-40° to 158°F); 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.
RH resolution and drift (MX2301, MX2302 only): resolution 0.05%; drift <1% per year typical.

All models store data in 128 KB of memory (84,650 measurements, maximum), log at a rate selectable from 1 second to 18 hours, and transmit up to 30.5 m (100 ft) line-of-sight. The operating range is -40° to 70°C (-40° to 158°F), IP67 and NEMA#6, and the logger housing measures 10.8 x 5.08 x 2.24 cm (4.25 x 2.0 x 0.88 in.). Every model is CE compliant. Note that exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%.

Configuration Options

The five models share the same housing, memory, radio, resolution, and IP67/NEMA weatherproofing but differ in sensor type and channel count:

MX2301 — internal temperature and RH.
MX2302 — external temperature and RH.
MX2303 — two external temperature channels; extends to 100°C (212°F).
MX2304 — external temperature; extends to 100°C (212°F).
MX2305 — internal temperature only.

Relative humidity measurement and its associated 0.05% resolution and <1% per year drift are provided on the MX2301 and MX2302 only, while the extended 70 to 100°C (158 to 212°F) temperature band applies to the MX2303 and MX2304 only.