HOBO H21-002 Micro Station Data Logger

4-channel weatherproof station for monitoring outdoor environmental conditions.

Features

  • Improved weatherproof enclosure for harsh environments
  • 512K non-volatile flash data storage
  • Up to four Smart Sensors
  • Up to 2 DC voltage or 4-20mA input adapters
  • Logging intervals: 1 second to 18 hours, user-specified interval
  • Operating range:
    • -4 to 122°F (-20 to 50°C) with alkaline batteries
    • -40 to 158°F (-40 to 70°C) with lithium batteries
  • RS-232 via 3.5 mm serial port communications

The HOBO H21-002 Micro Station Data Logger offers reliable monitoring performance at industry leading prices. Designed for stand-alone data logging applications, the 4-channel HOBO Micro Station accepts Onset's full suite of plug-and-play Smart Sensors, and is battery-powered for up to one year.

The H21 supports measurements of temperature, relative humidity, dew point, wind speed, wind direction, rainfall, soil moisture, solar radiation, PAR, barometric pressure, leaf wetness, 4-20mA, voltage input, pulse input, light intensity.

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

HOBO CABLE-PC-3.5 Interface Cable
HOBO CABLE-PC-3.5 Interface Cable

Interface Cable for PCs.

$25.00
HOBO ADAPT-SER-USB USB Interface Cable
HOBO ADAPT-SER-USB USB Interface Cable

Keyspan USB-to-serial adaptor for use with all RS-232 serial devices and a PC 3.5 Interface cable for PC computers.

$69.00

Software

HOBO HOBOware Pro Software
HOBO HOBOware Pro Software

Plot or export data to spreadsheets, time saving tools to fast setup, readout and export, compatible with all HOBO data loggers.

In Stock
$99.00

Sensors/Probes

HOBO TMB Series 12-Bit Temperature Smart Sensors
HOBO TMB Series 12-Bit Temperature Smart Sensors

Temp, and water temp measurements, stainless steel sensor tip and robust cable, 2m, 6m and 17m length options.

Some Models in Stock
Starting at $110.00

Accessories

Please consider these optional accessories.

HOBO T-VER-E50B2 Power / Energy Meter
HOBO T-VER-E50B2 Power / Energy Meter

True RMS up to the 21st harmonic 60 Hz, One to three phase AC system.

$665.00
HOBO WNB-3D WattNode 3-Phase Series Transducers
HOBO WNB-3D WattNode 3-Phase Series Transducers

Measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations, pulse output, use with wide variety of CT's.

Starting at $345.00
HOBO Voltage Input Adapter Sensor
HOBO Voltage Input Adapter Sensor

Digital filtering improves measurement accuracy with 32 readings/sample, 12-bit resolution.

In Stock
$109.00
HOBO 4-20 mA Input Adapter Sensor
HOBO 4-20 mA Input Adapter Sensor

Interfaces with any sensor providing a 4-20 mA signal to connect to smart sensor compatible data loggers.

In Stock
$105.00
HOBO U-DT-2 U30 Shuttle Data Transporter
HOBO U-DT-2 U30 Shuttle Data Transporter

Reads out data from systems in the field for transfer to a host computer, preserves data in nonvolatile memory.

$345.00
HOBO WattNode Branch Circuit Transducer Sensor
HOBO WattNode Branch Circuit Transducer Sensor

Measures up to 3 separate branch circuits simultaneously, accurate measurement of multiple single phase or each phase of 3-phase configurations.

$315.00
HOBO WattNode 1 / 2 / 3 Phase Wye kWh Transducer Sensor
HOBO WattNode 1 / 2 / 3 Phase Wye kWh Transducer Sensor

Measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations.

$289.00
HOBO UCC Series Pulse Input Adapters
HOBO UCC Series Pulse Input Adapters

Connects sensors with pulse outputs to loggers with smart-sensor inputs.

Some Models in Stock
Starting at $99.00
HOBO UCD Series Contact Closure Input Adapter
HOBO UCD Series Contact Closure Input Adapter

Connects sensors with pulse outputs to loggers with smart-sensor inputs, compatible with contact closures.

Starting at $99.00
HOBO S-SMD Soil Moisture Smart Sensor
HOBO S-SMD Soil Moisture Smart Sensor

Measures a large 1-liter volume of soil, providing a more accurate picture of average soil moisture.

$199.00
HOBO S-SMC-M005 Soil Moisture Smart Sensor
HOBO S-SMC-M005 Soil Moisture Smart Sensor

Sensor uses a high-frequency (70 MHz) circuit that provides good accuracy even in high-salinity and sandy soils.

$199.00
HOBO Temperature and Relative Humidity Smart Sensor
HOBO Temperature and Relative Humidity Smart Sensor

16-bit sensor for temperature and relative humidity measurement.

Starting at $210.00