HOBO Micro Station Data Logger

The Onset HOBO Micro Station accepts 4 plug-and-play Smart Sensors for accurate outddor monitoring. The micro weather station has an improved weatherproof enclosure for harsh environments, 4 standard AA batteries which can operate the weather station for up to 1 year and has optional analog and pulse inputs for 3rd-party sensors.

Included with HOBO Micro Weather Station
>> AA Alkaline Batteries

Things to Consider when Planning to Install a HOBO Weather Station or Micro Station.

Required Components of HOBO Micro Weather Station
>> Smart Sensors
>> HOBOWare Pro Software

Additional HOBO Weather Station Information 
>> Compatible External Sensors
>> Sensor Accessories
>> U30 Data Shuttle
>> Hardware & Mounting Accessories
>> Software & Communication Accessories
>> Complete Weather Station Accessories
>> 15-Channel HOBO Weather Station

HOBO Micro Weather Station Features

  • 4-Channel Weather Station with Weatherproof Enclosure for Harsh Environments
  • Measure Your Choice of Temperature, Humidity, Leaf Wetness, Rainfall, Barometric Pressure, Soil Moisture, Wind Speed & Direction, Solar Radiation, Photosynthetic Light, 0-5 Volts DC or 4-20 mA using Onset Smart Sensors (Sold Separately)
  • 1 Year Battery Life using 4 AA Alkaline Batteries
  • Supports Measurement Averaging Based on Availability of Supporting Data from Sensor
  • Scalable System Size and Flexible Sensor Mounting Allow Users to Position the Weather Station and Sensors Optimally
  • 512K Memory Can Store Over 500,000 Measurements
  • Non-Volatile EEPROM Memory Retains Data Even if Batteries Fail
  • Optional Data Shuttle Available to Collect Measured Readings in Remote Areas
  • Optional Analog and Pulse Inputs for 3rd-Party Sensors
  • Requires Smart Sensors and HOBOWare Pro Software
  • Compatible with SolarStream Wireless Data Transceiver

HOBO Micro Weather Station Specifications

Channels Max. of 4 
(Note: Some Sensors Use More Than 1 Data Channel)
Sensor Inputs 4 Smart Sensors
Sampling Rate 1 Second to 18 Hours (User Selectable)
Operating Range Alkaline Batteries: -20°C to 50°C (4°F to 122°F)
Lithium Batteries: -40°C to 70°C (-40°F to 158°F)
Communication 3.5 mm Serial Port
Memory 512K Nonvolatile Flash Data Storage
Data Storage Capacity 500,000 Readings/Measurements
Operating Modes Stop When Full
Wrap-Around When Full
Operational Indicators Seven Status Lights Provide Logging and Sensor Network Status
Start Modes Immediate, Push Button Start or Delayed Start
Time Accuracy 0 to 2 Seconds for First Data Point
±5 Seconds per Week at 25°C (77°F)
Data Type Supports Measurement Averaging Based on Availability of Supporting Data from Sensor
Data Communication Current Reading While Logging, Offload While Logging or Offload When Stopped
Battery (4) Standard AA Alkaline Batteries (Included)
Battery Life Typically 1 Year
(Up to 4 Sensors, 1 Minutes Sample Rate)
Mounting Mount Vertically on Flat Surface 18cm (3.5") or wider; Optional Mast Mounting Kit for use on 4.1cm (1 5/8 inches) Diameter Masts.
Enclosure Access Cover Secured by 4 Screws
Sensor Network Cable Length: 100 meters (358 ft) Maximum
Standards Compliance CE
Environmental Rating Weatherproof with Gore Vent for Deployment in Harsh Weather Conditions
Weight 0.36 kg (0.8 lbs)
Dimensions 89mm x 114mm x 54mm (3.5" x 4.5" x 2.125")

Description Part Number
HOBO Micro Station Data Logger H21-002
Software for Micro Weather Station - 1 Required
HOBOware Pro Software Kit for Windows/Mac, Serial (RS232) Interface Cable, User Manual (Kit for Weather Stations and Energy Logger Pro) BHW-PRO-CD-WS
Optional Weather Station Accessories
HOBO U30 Shuttle U-DT-2
Smart Sensor Extension Cable - 2 Meter Length S-EXT-M002
Mast Mounting Kit for Micro Station M-MKA
HOBO Micro Station Grounding Wire (recommended for use with Wind Speed/Direction sensor or when mounting on a metal mast or tripod) CABLE-HWS-G
Micro Station Adapter Cable CABLE-HWS-F
AA Batteries (Lithium) 4 Pack HWSB-LI
USB Serial Adapter CABLE-USB232
Extra Serial Interface Cable Cable-PC-3.5
Onset U-Shuttle Data Transporter (Requires HOBOware Pro Software) U-DT-1
NDVI Light Sensor Bracket M-NDVI
Note: The H21-002 comes with alkaline batteries. Lithium batteries are optional for locations with conditions outside -20°C to 50°C, but within -40°C to 70°C.
Optional NIST Calibration
Standard NIST DC Voltage Calibration (1 Point) Note: 3 to 5 Day Lead Time for All Calibration Orders CAL-NIST-DCVOLT
Standard NIST 4-20mA Calibration (1 Point) Note: 3 to 5 Day Lead Time for All Calibration Orders CAL-NIST-420MA

Application Notes

Understanding the Differences Between State, Event and Pulse Datalogging. (pdf)