Onset H21-USB Data sheet
NEW HOBO USB Micro
Station
Multi-channel weatherproof station
for monitoring outdoor environmental
conditions
Rugged and compact, the redesigned HOBO USB
Micro Station is a weatherproof data logger for
multi-channel monitoring of microclimates. This
battery-powered station accepts up to five plugand-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
integrated mounting tabs for easy installation.
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
Key Advantages:
• 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
Minimum System Requirements:
Software
USB cable*
Sensor
*USB cable included with software part # BHW-PRO-CD
For complete information and accessories, please visit: www.onsetcomp.com
Part number H21-USB
Operating Range
Smart Sensor Connectors 5
Smart Sensor Network Cable Length
Logging Interval 1 second to 18 hours
Start Modes Immediate, at interval, push button, or delayed start
Memory Modes Stop when full or wrap when full
Memory 512 KB nonvolatile ash data storage
Time Accuracy 0 to 2 seconds for the rst data point and ±5 seconds per week at 25°C (77°F)
Battery Type
Battery Life 1 year, typical use (up to ve sensors with 1 minute or greater logging interval)
Communication Type USB 2.0 interface
Full Memory Download Time 4 minutes
Enclosure Access Hinged door secured by one latch with eyelet for use with user-supplied padlock
Materials
Dimensions 17.04 x 11.94 x 4.47 cm (6.71 x 4.70 x 1.76 in.) Padlock hole diameter: 0.58 cm (0.23 in.)
Weight 414 g (14.6 oz)
Environmental Rating Weatherproof enclosure, NEMA 4X and IP66
CE Compliant Yes
-20° to 50°C (-4° to 122°F) with alkaline batteries
-40 to 70°C (-40 to 158°F) with lithium batteries
100 m (328 ft) maximum
Four AA 1.5 V alkaline batteries for operating conditions of -20° to 50°C (-4° to 122°F); four AA 1.5 V
lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)
Outer enclosure: Polycarbonate/PBT blend with stainless steel hinge pins; Gasket: Silicone foam;
Cable channel: EPDM rubber
Contact Us
Sales (8am to 5pm ET, Monday through Friday)
Email sales@onsetcomp.com
Call 1-508-759-9500
In U.S. toll free 1-800-564-4377
Fax 1-508-759-9100
Technical Support (8am to 8pm ET, Monday through Friday)
Contact Product Support onsetcomp.com/support/contact
Call 1-508-759-9500
In U.S. toll free 1-877-564-4377
Onset Computer Corporation
470 MacArthur Boulevard
Bourne, MA 02532
Copyright© 2016 Onset Computer Corporation. All rights reserved. Onset, HOBO, HOBOware are registered trademarks of Onset Computer Corporation. Other
products and brand names may be trademarks or registered trademarks of their respective owners. Patented technology (U.S. Patent 6,826,664) MKT1182-1216
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