
Product Specifications
- Manufacturer
- HOBO Data Loggers by Onset
- Product Number
- H21-USB
- Type
- Micro Station Data Logger
- Smart Sensor Inputs
- 5
- Maximum Data Channels
- 15
- Sensor Network Cable Length
- 100 m (328 ft) maximum
- Logging Interval
- 1 second to 18 hours
- Memory
- 512 KB nonvolatile flash
- Operating Range (Alkaline)
- -20°C to +50°C (-4°F to +122°F)
- Operating Range (Lithium)
- -40°C to +70°C (-40°F to +158°F)
- Battery Life
- 1 year typical (up to 5 sensors, 1 min logging interval)
- Battery Type
- 4 AA 1.5V alkaline (included) or lithium
- Communication
- USB 2.0 direct
- Enclosure
- Weatherproof, NEMA 4X, IP66
- Dimensions
- 17.04 x 11.94 x 4.47 cm (6.71 x 4.70 x 1.76 in)
- Weight
- 414 g (14.6 oz)
- Software
- HOBOware and HOBOware Pro compatible
- Documents
- Product Manual, Product Specs (2 Files)
Product Description
The HOBO H21-USB Micro Station Data Logger is a weatherproof data logger for multi-channel monitoring of microclimates. This battery-powered station accepts up to five plug-and-play Smart Sensors and has a hinged door to make sensor installation simple and quick.
The Micro Station is equipped with a built-in USB port for fast, efficient data readout to a computer, and integrated mounting tabs for easy installation. The weatherproof IP66 enclosure ensures reliable operation in harsh outdoor environments.
The logger supports logging intervals from 1 second to 18 hours with 512 KB of nonvolatile flash memory. It operates on four AA batteries: alkaline batteries provide -20°C to +50°C operating range, while lithium batteries extend operation to -40°C to +70°C. Typical battery life is one year with up to five sensors at a 1-minute logging interval.
The H21-USB is compatible with HOBOware and HOBOware Pro software for logger setup and data analysis. Smart sensors are sold separately.
Micro Station Data Logger - 5 Smart Sensors, IP66 | HOBO H21-USB
Product Specifications
- Manufacturer
- HOBO Data Loggers by Onset
- Product Number
- H21-USB
- Type
- Micro Station Data Logger
- Smart Sensor Inputs
- 5
- Maximum Data Channels
- 15
- Sensor Network Cable Length
- 100 m (328 ft) maximum
- Logging Interval
- 1 second to 18 hours
- Memory
- 512 KB nonvolatile flash
- Operating Range (Alkaline)
- -20°C to +50°C (-4°F to +122°F)
- Operating Range (Lithium)
- -40°C to +70°C (-40°F to +158°F)
- Battery Life
- 1 year typical (up to 5 sensors, 1 min logging interval)
- Battery Type
- 4 AA 1.5V alkaline (included) or lithium
- Communication
- USB 2.0 direct
- Enclosure
- Weatherproof, NEMA 4X, IP66
- Dimensions
- 17.04 x 11.94 x 4.47 cm (6.71 x 4.70 x 1.76 in)
- Weight
- 414 g (14.6 oz)
- Software
- HOBOware and HOBOware Pro compatible
- Documents
- Product Manual, Product Specs (2 Files)
















