Descripción
HOBO by Onset MX2304 Temperature Datalogger
- External Temperature Sensor Data Logger
- 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
The HOBO MX2304 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.
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.
The HOBO MX2300 series data loggers record and transmit temperature and/or relative humidity (RH) in outdoor or indoor environments. These Bluetooth® Low Energy-enabled loggers are designed for wireless communication with a mobile device. Using the HOBOmobile® app, you can easily configure the logger, read it out, and view data on your phone or tablet, or export the data for further analysis. The logger can calculate minimum, maximum, average, and standard deviation statistics and be configured to indicate alarms at the thresholds you specify. The logger also supports burst logging in which data is logged at a faster interval when sensor readings are above or below certain limits. The Temp and Temp/RH models have internal sensors while the External Temp /RH, External Temp, and 2x External Temp include built-in external sensors, offering a wide range of solutions for monitoring temperature and RH in numerous applications.
Manufacturer Specs
| HOBO MX2300 Series Specifications | |||||
| Part Number | MX2301 (Internal Temp/RH) |
MX2302 (External Temp/RH) |
MX2303 (2x External Temp) |
MX2304 (External Temp) |
MX2305 (Internal Temp) |
| Temperature Sensors | |||||
| Range | -40 to 70°C (-40 to 158°F) | -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 | -40 to 70°C (-40 to 158°F) | ||
| 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 |
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| Resolution | 0.04°C (0.072°F) | ||||
| Drift | <0.01°C (0.018°F) per year | ||||
| Relative Humidity 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 | ||||
| Logger | |||||
| Operating Range | -40° to 70°C (-40° to 158°F) | ||||
| Radio Power | 1 mW (0 dBm) | ||||
| Transmission Range | Approximately 30.5 m (100 ft) line-of-sight | ||||
| Wireless Data Standard | Bluetooth Low Energy (Bluetooth Smart) | ||||
| 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; 5 years, typical with logging interval of 1 minute and Power Saving Mode enabled. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and pagi ng may impact battery life. | ||||
| 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.) External temperature sensor diameter: 0.53 cm (0.21 in.) External temperature/RH sensor diameter: 1.17 cm (0.46 in.) External sensor cable length: 2 m (6.56 ft) Solar radiation shield bracket: 10.8 x 8.3 cm (4.25 X 3.25 in.) |
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| Weight | Logger: 75.5 g (2.66 oz) Solar radiation shield bracket: 20.4 g (0.72 oz) |
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| Materials | Acetal, silicone gasket, stainless steel screws | ||||
| Environmental Rating | NEMA 6 and IP67 | ||||
| Temperature | |||
| Without Solar Radiation Shield |
With RS1/M-RSA Soalr 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 |
| MX2302 Internal 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 Internal sensor | 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 |
| MX2304 Internal sensor | 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 |
| RH | |||
| Without Solar Radiation Shield |
With RS1/M-RSA Soalr 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 |
| MX2302 Internal 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 |
Tech Specs
Test Equipment General Attributes |
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| Country of Origin | United States |
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