HOBO Temp/RH/Light/Ext-Analog Data Logger
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Overview
Measures and transmits temperature, relative humidity, and light intensity data wirelessly. Includes an external analog input to attach a variety of additional sensors.
This self-contained, Bluetooth-enabled, wireless data logger lets you use your mobile device or Windows computer and Onset's free HOBOconnect app to access data, at any time, when within 100 feet of the logger. Configure the logger, read out data, view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files - with no dedicated equipment beyond a mobile device or laptop.
Purchase an MX Data Plan to get more out of your data and access it from anywhere using the LI-COR Cloud software platform (formerly HOBOlink)! You can also purchase the MX Gateway station, which automatically sends your logger's data to LI-COR Cloud.
Features
- Bluetooth communication for wireless data offload
- 16-bit resolution for highly-accurate measurements
- Stores 1.9 million measurements for longer deployments between offloads
- New Self-Describing sensors with automatic configuration for fast deployment
- Compatible with existing sensors for a wide range of indoor monitoring
- Audible and visual LCD-screen alarms notify you if sensor becomes unplugged or a reading exceeds set thresholds
Specifications
Temperature Sensor (MX1104)
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-20° to 70°C-4° to 158°F
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±0.20°C from 0° to 50°C±0.36°F from 32° to 122°F
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0.002°C at 25°C0.004°F at 77°F
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<0.1°C (0.18°F) per year
RH Sensor* (MX1104)
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0% to 100% at -20° to 70°C (-4° to 158°F); exposure to conditions above 95% may temporarily increase the maximum RH sensor error by an additional 1%
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±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
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0.01%
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<1% per year typical
Response Time (MX1104)
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11 minutes in air moving 1 m/s (2.2 mph)
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30 seconds to 90% in airflow of 1 m/s (2.2 mph)
Light Sensor (M1104)
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0 to 167,731 lux15,582 lum/ft2
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±10% typical for direct sunlight (see Light Measurement on page 4 for more details)
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Logger with
Cable TypeSD-MA-420 or CABLE-4-20mA SD-VOLT-2.5 or CABLE-2.5-STEREO SD-VOLT-05 or CABLE-
ADAP5SD-VOLT-10 or CABLE-ADAP10 SD-VOLT-24 or CABLE-ADAP24 Measurement Range 0 to 20.1 mA 0 to 2.5 V 0 to 5.0 V 0 to 10 V 0 to 24 V Accuracy ±0.001 mA ±0.2% of reading ±0.1 mV ±0.1% of reading ±0.2 mV ±0.3% of reading ±0.4 mV ±0.3% of reading ±1.0 mV ±0.3% of reading Resolution 0.3 µA 40 µV 80 µV 160 µV 384 µV
Logger
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-20° to 70°C-4° to 158°F
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1 mW0 dBm
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Approximately 30.5 m (100 ft) line-of-sight
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Bluetooth Low Energy (Bluetooth Smart)
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1 second to 18 hours
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Fixed interval (normal, statistics) or burst
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Wrap when full or stop when full
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Immediate, push button, date & time, or next interval
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When memory full, push button, date & time, or after a set logging period
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Push button
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±1 minute per month at 25°C77°F
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Two AAA 1.5 V alkaline batteries, user replaceable
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1 year, typical with logging interval of 1 minute and Bluetooth Always On enabled; 2 years, typical with logging interval of 1 minute and Bluetooth Always On disabled; and temperatures between 0° and 50°C (32° and 122°F). Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.
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4 MB (1.9 million measurements, maximum)
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Approximately 4 to 15 minutes depending on the mobile device; may take longer the further the device is from the logger
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LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
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11.28 x 5.41 x 2.92 cm4.44 x 2.13 x 1.15 in.
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123 g4.34 oz
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IP54
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