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The HOBO MX2302 is a weatherproof data logger with external temperature and relative humidity sensors. Leveraging Bluetooth Low Energy, the logger enables easy, fast set up and data download directly from your mobile device, and provides high-accuracy measurements in harsh outdoor environments.
iOS Compatible App downloadable from the App Store®.
Temperature Sensor |
|
Range |
MX2301 and MX2305 internal sensors: -40 to 70°C (-40 to 158°F) |
Accuracy |
±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F) |
Resolution |
0.04°C (0.072°F) |
Drift |
<0.01°C (0.018°F) per year |
RH Sensor (MX2301, MX2302 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 |
0.05% |
Drift |
<1% per year typical |
Response Time Temperature | Without Solar Radiation Shield | With RS1/M-RSA Solar Radiation Shield | With RS3-B Solar Radiation Shield | ||||
MX2301 internal sensor |
17 minutes in air moving 1 m/sec |
24 minutes in air moving 1 m/sec |
N/A |
||||
MX2302 external sensor |
2 minutes, 30 seconds in air moving 1 m/sec |
6 minutes in air moving 1 m/sec |
5 minutes 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 |
N/A |
Response Time RH | Without Solar Radiation Shield | With RS1/M-RSA Solar Radiation Shield | With RS3-B Solar Radiation Shield | ||||
MX2301 internal sensor |
1 minute in air moving 1 m/sec |
1 minute in air moving 1 m/sec |
N/A |
||||
MX2302 external sensor |
4 minutes in air moving 1 m/sec |
4 minutes in air moving 1 m/sec |
4 minutes in air moving 1 m/sec |
Logger |
|
Radio Power |
1 mW (0 dBm) |
Transmission Range |
Approximately 30.5 m (100 ft) line-of-sight |
Wireless Data Standard |
Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) |
Logger Operating Range |
-40° to 70°C (-40° to 158°F) |
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 Power Saving Mode disabled; |
Memory |
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.) |
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 |
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
The HOBO MX2302 is a weatherproof data logger with external temperature and relative humidity sensors. Leveraging Bluetooth Low Energy, the logger enables easy, fast set up and data download directly from your mobile device, and provides high-accuracy measurements in harsh outdoor environments.
iOS Compatible App downloadable from the App Store®.
Temperature Sensor |
|
Range |
MX2301 and MX2305 internal sensors: -40 to 70°C (-40 to 158°F) |
Accuracy |
±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F) |
Resolution |
0.04°C (0.072°F) |
Drift |
<0.01°C (0.018°F) per year |
RH Sensor (MX2301, MX2302 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 |
0.05% |
Drift |
<1% per year typical |
Response Time Temperature | Without Solar Radiation Shield | With RS1/M-RSA Solar Radiation Shield | With RS3-B Solar Radiation Shield | ||||
MX2301 internal sensor |
17 minutes in air moving 1 m/sec |
24 minutes in air moving 1 m/sec |
N/A |
||||
MX2302 external sensor |
2 minutes, 30 seconds in air moving 1 m/sec |
6 minutes in air moving 1 m/sec |
5 minutes 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 |
N/A |
Response Time RH | Without Solar Radiation Shield | With RS1/M-RSA Solar Radiation Shield | With RS3-B Solar Radiation Shield | ||||
MX2301 internal sensor |
1 minute in air moving 1 m/sec |
1 minute in air moving 1 m/sec |
N/A |
||||
MX2302 external sensor |
4 minutes in air moving 1 m/sec |
4 minutes in air moving 1 m/sec |
4 minutes in air moving 1 m/sec |
Logger |
|
Radio Power |
1 mW (0 dBm) |
Transmission Range |
Approximately 30.5 m (100 ft) line-of-sight |
Wireless Data Standard |
Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) |
Logger Operating Range |
-40° to 70°C (-40° to 158°F) |
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 Power Saving Mode disabled; |
Memory |
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.) |
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 |
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.