HOBO Weather Station Data Logger

The Onset HOBO Weather Station can record up to 15 different outdoor environomental parameters. Temperature, Humidity, Barometric Pressure, Light, Rain Fall, Leaf Wetness and Wind Sensors are available (sold separately) for easy plug-in and automatic detection by the logger. The weather station features multiple start modes, 100 meter maximum combined sensor range and input adapters for pulse, dc voltage and 4-20mA.

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

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

Additional HOBO Weather Station Information
>> Compatible External Sensors
>> U30 Data Shuttle
>> Sensor Accessories
>> Hardware & Mounting Accessories
>> Software & Communication Accessories
>> 4-Channel HOBO Weather Station

HOBO Weather Station Features

  • 10-Channel (Expandable to 15) Weather Station Records Temperature, Humidity, Rainfall, Soil Moisture, Wind, Light Intensity, Barometric Pressure and Leaf Wetness (Sensors Sold Separately)
  • Adapters Available for Pulse, DC Voltage and 4 to 20mA Inputs
  • Plug-In Smart Sensors are Automatically Recognized
  • User-Selectable Sampling Rate of 1 Second to 18 Hours
  • Deploy for 1 Year Using 4 User-Replacable AA Batteries
  • Non-Volatile EEPROM Memory Retains Data Even if Batteries Fail
  • Status Lights Indicate Proper Sensor Connection and Logging
  • Low-Battery and Low-Memory Warnings
  • Auxiliary Battery Connection Allows Battery Changes While Logging
  • Optional Data Shuttle Available to Collect Measured Readings in Remote Areas
  • Requires Smart Sensors and HOBOWare Pro Software
  • Compatible with SolarStream Wireless Data Transceiver

Weather Station and Data Logger Specifications

Channels 10 Channels Expandable to 15
(Note: Some Sensors Use More Than 1 Data Channel)
Sensor Inputs 10 Smart Sensors, Expandable to 15 with Optional Adapters
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 or Weather Proof External Connector
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 10 Sensors, 10 Minutes Sample Rate)
Mounting Mast 3.8 cm (1.5") Maximum Diameter or Wall Mount
Enclosure Access Hinged Door Secured by 4 Screws
Sensor Network Cable Length: 100 meters (358 ft) Maximum
Standards Compliance CE
Environmental Rating Weatherproof
Weight 0.9 kg (2 lbs)
Dimensions 230mm x 100mm x 180mm (9.0" x 4.0 " x 7.0")

Description Part Number
HOBO Weather Station Data Logger H21-001
Software Kit for 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
Smart Sensors for Weather Station - 1 Required
12-Bit Temperature Sensor with 2m cable S-TMB-M002
12-Bit Temperature Sensor with 6m cable S-TMB-M006
12-Bit Temperature Sensor with 17m cable S-TMB-M017
Temperature RH Smart Sensor with 2 Meter Cable S-THB-M002
Temperature RH Smart Sensor with 8 Meter Cable S-THB-M008
NOTE: Temp/RH sensors require protection from rain or direct splashing; radiation shield recommended for use in sunlight
Rain Gauge Smart Sensor (0.1") with 2m Cable S-RGA-M002
Rain Gauge Smart Sensor (0.2mm) with 2m Cable S-RGB-M002
NOTE: If mounting separate from main tripod, order with 6m cable and an additional 1.5m mast
PAR Sensor with 3m Cable S-LIA-M003
PAR Sensor with 18m Cable S-LIA-M018
Silicon Pyranometer (Solar Radiation) Sensor w/ 3m Cable S-LIB-M003
Silicon Pyranometer (Solar Radiation) Sensor w/18 m Cable S-LIB-M018
Wind Speed Sensor with 3m Cable S-WSA-M003
Wind Direction Sensor with 3m Cable S-WDA-M003
HOBO Wind Speed and Wind Direction Sensor Set S-WSET-A
Barometric Pressure Sensor with 10cm cable S-BPA-CM10
12-Bit Barometric Pressure Sensor with 50cm Cable S-BPB-CM50
5-cm Probe Smart Soil Moisture Sensor with 5 Meter Cable S-SMC-M005
Onset Soil Moisture Smart Sensor S-SMD-M005
DC Voltage Input Adapter - 12 Bit S-VIA-CM14
4-20 mA Input Adapter - 12 Bit S-CIA-CM14
16-Bit Electronic Switch Pulse Input Adapter w/ 1 Meter Cable S-UCC-M001
16-Bit Electronic Switch Pulse Input Adapter w/ 6 Meter Cable S-UCC-M006
16-Bit Contact Closure Pulse Input Adapter w/ 1 Meter Cable S-UCD-M001
16-Bit Contact Closure Pulse Input Adapter w/ 6 Meter Cable S-UCD-M006
HOBO Leaf Wetness Smart Sensor w/bracket and 3m cable S-LWA-M003
Optional Weather Station Accessories
Smart Sensor Extension Cable - 2 Meter Length S-EXT-M002
HOBO U30 Shuttle U-DT-2
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 H21-001 comes with alkaline batteries. Lithium batteries are optional for locations with conditions outside -20° to 50°C, but within -40° 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)