OnsetHOBO ® H21-USB Weather Station Data Recorder-Global supplier

Room 639, Tangxing Digital Building, No. 6 Tangxing Road, High tech Zone, Xi'an City, Shaanxi Province

product overview

HOBO H21-USB is Onset's latest small data logger, which can easily form a small automatic weather station or energy monitoring system with various types of sensor components.

serve asThe upgraded product of H21-002 data logger, H21-USB inherits the small, easy-to-use, and cost-effective characteristics of H21-002, while also upgrading its performance and configuration. It adopts a new polycarbonate protective shell that complies with NEMA 4 × and IP66 standards, providing better protection for internal components; The number of sensor interfaces has increased from 4 to 5, allowing for simultaneous connection of more sensors and measurement of more elements; The data interface has been upgraded to USB 2.0, making it easier and more convenient to use.

The H21-USB small data logger supports various meteorological element sensors such as air temperature and humidity, wind speed, wind direction, atmospheric pressure, photosynthetically active radiation (PAR), total radiation, leaf surface humidity, soil temperature, soil moisture, precipitation, water flow, etc. It can form a miniature meteorological station, which is very suitable for low-cost observations on a small scale.

The H21-USB recorder also supports various types of electrical sensors such as 4-20mA, DC voltage, and pulse. It can be connected not only to Onset's related sensors, but also to third-party sensors that meet the requirements for energy monitoring and other work, greatly expanding your usage rangeSurrounding.

Technical Parameter

Main technical parameters
H21-USB
operation temperature	-20~50 ℃ (when using alkaline batteries); -40~70 ℃ (when using lithium batteries)
sensor interface	5 of them
Sensor compatibility	Compatible with the vast majority of intelligent sensors in Onset
Sensor cable length	≤100m
sampling interval	1 second to 18 hours, customizable
time accuracy	± 5 seconds per week
Data Storage	512K built-in storage
Recording mode	Immediately; Manual operation; delay start
analog input	0~5VDC； 4~20mA
communication interface	USB-mini
protection grade	NEMA 4×；IP66
power supply	5 AA batteries x 4 cells
External dimensions	17.04cm×11.94cm×4.47cm
weight	414g

Comparison Table of Core Recorder Functions of HOBO Micro Meteorological Station
category	H21-USB	UX3000 series
Onset intelligent sensor	√	√
Analog signal sensor	——	√
Double layer protective chassis	——	√
Solar and AC charging	——	√
battery life	About 1 year	About 30 days (with a 1-hour sampling interval)
Type	5 (AA) x 4 sections, replaceable	Rechargeable battery HRB-U30-S100, supports solar or AC charging
Interface channel	5, non expandable	10, expandable to 15
remote communication	——	√
Real time Internet access	——	√
USB interface	√	√
operation temperature	-20~50 ℃ (when using alkaline batteries); -40~70 ℃ (when using lithium batteries)	-40℃~60℃
Data storage capacity	512K， About 500000 sets of data	32M built-in storage, capable of storing approximately 2 million sets of data; There is no upper limit when using HOBOLink
HOBOLink Cloud Services	——	√

Select attachments and optional accessories

1.The recorder is connected to the computerThe USB cable is sold together with the HOBOwarePro software (in BHW-PRO-CD), and the recorder itself does not include a data cable, nor is it sold separately by the manufacturer. So if you need this cable, you must purchase genuine software.

2.'Selected attachments' are attachments that may be needed during use, such as data transmission cables/connectors and software required for exporting data from the recorder to a computer and conducting data analysis;

3.Optional accessories "are additional accessories or consumables that can be purchased according to your needs.

If you need to know more about the product details, you can contact the sales personnel of Xi'an Saimo Rui Environmental Technology Co., Ltd. The contact information can be found at the bottom of the website.