HOBO H21-USB Micro Station Data Logger

Weatherproof data logger for multi-channel monitoring of microclimates, accepts up to five plug-and-play Smart Sensors. Learn more...

Features

  • Weatherproof IP66 enclosure
  • Direct USB offload
  • 328ft (100m) maximum cable length
  • Includes five smart sensor inputs
  • Operating range:
    • -4 to 122°F (-20 to 50°C) alkaline batteries
    • -40 to 158°F (-40 to 70°C) lithium batteries
  • 1 second to 18 hours logging intervals
  • Hinged door and integrated mounting tabs
  • Compatible with HOBOware and HOBOware Pro software

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 an integrated mounting tabs for easy installation.

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
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 $325.00
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.

$299.00
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.

$270.00
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 $95.00
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 $95.00
HOBO Voltage Input Adapter Sensor
HOBO Voltage Input Adapter Sensor

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

In Stock
$105.00
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.

$100.00
HOBO S-BPB-CM50 Barometric Pressure Smart Sensor
HOBO S-BPB-CM50 Barometric Pressure Smart Sensor

Barometric Pressure Smart Sensor for use with the HOBO Remote Monitoring Station Data Loggers.

In Stock
$290.00
HOBO S-LWA Leaf Wetness Smart Sensor
HOBO S-LWA Leaf Wetness Smart Sensor

Measurement range: 0 (dry) to 100% (wet), capacitive grid sensor type.

$180.00
HOBO S-LIA Photosynthetic Light Smart Sensor
HOBO S-LIA Photosynthetic Light Smart Sensor

Photosynthetically Active Radiation (PAR) Smart Sensor, designed to detect photons between 400-700 nm in wave length.

$270.00
HOBO S-LIB Solar Radiation Sensor
HOBO S-LIB Solar Radiation Sensor

Solar Radiation (Silicon Pyranometer) Sensor, measurement range: 0 to 1280 W/m².

$260.00
HOBO S-RGB-M002 Rainfall Smart Sensor
HOBO S-RGB-M002 Rainfall Smart Sensor

0.2 mm Rainfall (2m cable) Smart Sensor, measures rainfall rates up to 12.7 cm per hour.

In Stock
$500.00
HOBO S-RGA-M002 Rain Gauge Smart Sensor
HOBO S-RGA-M002 Rain Gauge Smart Sensor

0.01" Rain Gauge (2m cable) Smart Sensor, measures rainfall rates up to five inches per hour.

$500.00
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.

$190.00
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.

$190.00
HOBO S-WDA Wind Direction Smart Sensor
HOBO S-WDA Wind Direction Smart Sensor

Research-grade plug-and-play sensor for measuring and logging wind direction data.

$410.00
HOBO S-WSB Wind Speed Smart Sensor
HOBO S-WSB Wind Speed Smart Sensor

Measure wind speed from 0 to 76 m/s (0 to 170 mph), sensor survives through 170 mph.

$290.00
HOBO S-WSET-B Wind Smart Sensor Set
HOBO S-WSET-B Wind Smart Sensor Set

Set includes research-grade plug-and-play Wind Speed Smart Sensor and the Wind Direction Smart Sensor.

$690.00
HOBO S-WCB Wind Monitor Adapter Sensor
HOBO S-WCB Wind Monitor Adapter Sensor

Connects the R.M. Young Wind Monitor-AQ Sensor (model 05305) with Onset's line of research-grade weather stations.

$160.00
HOBO S-WCC Marine Wind Monitor Adapter Sensor
HOBO S-WCC Marine Wind Monitor Adapter Sensor

Connects the R.M. Young Marine Wind Monitor Sensor (model 05106) with Onset's line of research-grade weather stations.

$160.00
HOBO S-WCG-M003 Ultrasonic Smart Sensor
HOBO S-WCG-M003 Ultrasonic Smart Sensor

Ultrasonic wind, speed and direction smart sensor, plug-and-play with HOBO stations.

$960.00
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

This product can be used in the following applications: