Onset HOBO Data Logger H21-USB

Onset H21 Data Logger is a quality data logger built for the indoor and outdoor environment. Rugged and compact, the redesigned HOBO USB Micro Station is a weatherproof data logger for multi-channel monitoring of climates and environment.  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 data logger is equipped with a built-in USB port for fast, efficient data readout to a computer, and integrated mounting tabs for easy installation.

Download brochure Request for Quote
Supported Measurements:
4-20mA, Amp Hour, Barometric Pressure, DC Voltage, Kilowatt Hours, Leaf Wetness, Light Intensity, Power Factor, Pulse Input, Rainfall, Relative Humidity, Soil Moisture, Temperature, Volt-Amp Reactive, Volt-Amp Reactive hour, Volt-Amps, Water Flow, Watt Hours, Watts, Wind
Onset H21 Logger Highlighted Features
  • Compact size for easy deployment
  • Weatherproof IP66 enclosure for harsh environments
  • Direct USB offload–no need for an adapter cable
  • Includes five smart sensor inputs
  • Hinged door and integrated mounting tabs
  • Runs for up to a year on four standard AA batteries
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis

Onset H21 Data Logger Introduction