Description
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®.
Features
- 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 HOBOmobile app
- Share downloaded data easily from your mobile device
- Accuracy: +/- 0.2C° and +/- 2.5% RH
Specifications
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Temperature Sensor |
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Range |
MX2301 and MX2305 internal sensors: -40 to 70°C (-40 to 158°F) |
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Accuracy |
±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F) |
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Resolution |
0.04°C (0.072°F) |
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Drift |
<0.01°C (0.018°F) per year |
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RH Sensor (MX2301, MX2302 only) |
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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% |
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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 |
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Resolution |
0.05% |
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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 | ||||
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MX2301 internal sensor |
17 minutes in air moving 1 m/sec |
24 minutes in air moving 1 m/sec |
N/A |
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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 |
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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 |
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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 | ||||
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MX2301 internal sensor |
1 minute in air moving 1 m/sec |
1 minute in air moving 1 m/sec |
N/A |
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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 |
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Logger |
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Radio Power |
1 mW (0 |