YSI - a Xylem brand  

YSI WaterLOG Storm 3 Datalogger

The Storm 3 Data Logger incorporates a balanced set of inputs for analog, digital I/O and SDI-12 smart sensors to allow communication through cellular modems and GOES satellite. You'll love how easy it is to configure and collect data using the browser-based graphical user interface (GUI) with all standard web browsers on PCs, tablets and smart phones.

  • Features
  • Specifications
  • Documents
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The Storm 3 data logger has emerged faster, smarter and more specifically designed for today's technological advances while maintaining simplicity and ease of use.

  • Built-in Sensor Library
  • Browser-based Graphical User Interface (GUI)
  • Direct or Wireless Connection for GUI

Add the Storm 3 to your collection to create the ultimate hydrological or meteorological system, producing data you can rely on 24/7.

You can also view your password-protected and public data anywhere with internet access using our cloud hosted data solution Storm Central. Pair the Storm Central Data Collection Platform with the Storm 3 and you've got one mean data-collecting machine that you access anytime, anywhere.

Storm Central

How does access to your data 24/7 sound? Storm Central is a cloud hosted data collection platform allowing you to view and download your Storm 3 site data anytime, anyplace in real-time. Storm Central also has graphical and tabular displays that can pinpoint data from any time range and even filter sensors makes this platform quick and simple to use. Not to mention the ability to generate simple-to-complex alarm notifications based on paramaters you provide, which will alert you through email or text message. You can also set your map icons to change color for further alerts.

Storm Local

Not so keen on cloud hosting? Storm Local is a similar version of Storm Central that is installed on your PC and hosted on your local server. If you don't need access to your data from any location, then Storm Local is the way to go. You can still view your data in graphical and tabular display, and set up custom alarm notifications for your site. Storm Local features can be added as needed to provide additional functionality such as GOES data retrieval.

Analog Inputs
Channels 4 Single Ended
Resolution 20-Bit Resolution
Accuracy ±0.025% FS
Range 0.0 to 5.0 volts (0.001 to 4.998V)
+5.0 Volt Excitation
Type Switched, ratio metric with A/D
Current 10 mA max load
Switched +12.0 Volt Excitation
Type Unregulated based on battery voltage
Current 250 mA Max load, protected by resettable fuse
Digital I/O
Channels 4 general purpose Digital I/O's
Modes Digital input, Counter input, Conditional output, Counter frequency (100 Hz Max)
Input Levels 0.0 to 5.0 volts; (High ≥ 3.5 V, Low ≤ 0.08 V)
Output Levels High = 3.5 V Min Sourcing 5 mA; Low = 0.4 V Max Sinking 5 mA
Mode SDI-12 Master Mode V1.3 Compliant
Connector 3-pin connector
Type Single RS-232 configured as a DTE device
Connector 9-pin D connector, male
Baud Rate Programmable
Type Single RS-485 port
Connector 4 position screw terminal
Data Storage Capacity 256 MB, expandable
Communications Type

2 Host USB-A Connectors, 1 Device Mini-B Connector; Version 2.0

Cell Modem (optional)


Wi-Fi 150 Mbps Wireless 802.11b/g/n
Voltage Input 10.0 to 16.0 V, Reverse Voltage Protected

Standby: 3.5 mA Max; Active: 50.0 mA Typical

Current with Internal Modem

Standby: 4.5 mA Max; Active: 100 mA Typical


2 position screw terminal

Operating Temperature -40 ° to +60 ° C
Storage Temperature -50 ° to +80 ° C
Size 4.37 in. L x 2.45 in. W x 7.375 in. H
Weight 2 lbs (1 kg)
Material Extruded Aluminum

The WaterLOG® Storm 3 is warranted against defects in materials and workmanship for twenty-four months from date of shipment.

For detailed specifications, see user manual.