HOBO Weather Station Data Logger
H21-001 HOBO Weather Station Data Logger
  • H21-001 Image 1
Part # H21-001

HOBO Weather Station Data Logger

15 data channel logger


The award-winning HOBO Weather Station offers easy configuration and dependable research-grade measurements at a reasonable cost. The HOBO Weather Station records up to 15 channels of measurements, and a broad range of plug-and-play smart sensors are available for monitoring all kinds of environmental conditions - from temperature and humidity to soil moisture, wind speed/direction, rainfall, leaf wetness, solar radiation, and barometric pressure. Input adapters for 4-20mA, DC voltage, and pulses increase the range of possible measurements.

  • Accept Onset's wide range of plug-in smart sensors
  • Optional analog and pulse inputs for 3rd-party sensors
  • Battery-powered for up to a year - no solar panels required

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Operating Range: -20° to 50°C (-4° to 122°F) with alkaline batteries,
-40° to 70°C (-40° to 158°F) with lithium batteries

Sensor Inputs: 10, expandable to 15 with optional adapters

Data Channels: Maximum of 15 (some sensors use more than one data channel;
see sensor manual for details)

Communication: 3.5 mm serial port or weatherproof external connector

Dimensions: 23 cm H x 10 cm D x 18 cm W (9 x 4 x 7 inches)

Weight: 0.9 kg (2 lbs)

Memory: 512K nonvolatile flash data storage

Memory Modes: Stop when full, wrap around when full

Operational Indicators: Seven status lights provide logging and sensor network status

Logging Interval: 1 second to 18 hours, user-specified interval

Battery Life: 1 year typical use (up to 10 sensors with 10 minutes or longer logging interval)

Battery Type: Four standard AA alkaline batteries included (for operating conditions -20° to 50°C [-4° to 122°F]); optional AA lithium batteries available for operating conditions of -40° to 70°C (-40° to 158°F)

Time Accuracy: 0 to 2 seconds for the first data point and ±5 seconds per week at 25°C (77°F)

Data Type: Supports measurement averaging based on availability of supporting data from sensor

Logger Start Modes: Immediate, push-button, or delayed start options

Data Communication: Current reading while logging, offload while logging, or offload when stopped

Environmental Rating: Weatherproof

Mounting Mast: (3.8 cm [1.5 inches] maximum diameter) or wall mount

Enclosure Access: Hinged door secured by four screws

Sensor Network Cable Length: 100 m (328 ft) maximum

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Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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