Description
The HOBO MX2301 is a weatherproof data logger with built-in 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 dBm) |