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Last Revised: 2014-11-06 07:14:00.0

Wireless Sensor Network Analog Input Nodes
NI WSN-3202, NI WSN-3212, NI WSN-3226

Support for hundreds of nodes to help you create a reliable network to monitor your
assets or environment

Four analog input channels per measurement node

NI-WSN software that provides easy network configuration, drag-and-drop LabVIEW
programming, and support for logging, alarming, and Web-based data visualization

Bidirectional digital channels; configurable for input, sinking output, or sourcing output
(2 to 4 DIO channels per node)
Industrial ratings: -40 to 70 °C operating temperature and 50 g shock, 5 g vibration

Low-power operation, up to 3-year battery life
2.4 GHz, IEEE 802.15.4 radio that provides up to 300 m outdoor range

Overview
The National Instruments wireless sensor network (WSN) platform delivers low-power measurement nodes that offer industrial certifications, reliable networking, and optional
weatherproof outdoor enclosures for long-term, remote monitoring applications. The measurement nodes have direct sensor connectivity and a 2.4 GHz radio to wirelessly
transmit data to a WSN gateway. Each measurement node offers four analog input channels and two to four digital I/O channels that you can configure for input, sinking output, or
sourcing output. With graphical NI LabVIEW software, you can easily configure your network, collect measurement data, trigger alarms through SMS or e-mail, and even view
monitoring data within a Web browser.
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Comparison Tables

Model

Signal
Type(s)

Analog
Minimum
Resolution
Input
DIO
Input
Sample Interval
(bits)
Range(s) Channels
Channels
(seconds)

DIO
Voltage
Range
(V)

Maximum DIO
Sourcing
(aggregate)

Additional Features

NI
Voltage
WSN-3202

4

16

1

4 (sinking
±10, ±5, ±2,
or
±0.5 V
sourcing)

5 to 30

1A

12 V, 20 mA sensor power output

NI
Thermocouple,
WSN-3212 Voltage

4

24

2

±73 mV

4 (sinking
or
sourcing)

5 to 30

500 mA

Support for J, K, R, S, T, N, B, E
thermocouple types

NI
Voltage,
4
WSN-3226 Resistance/RTD

20

1

±10 V, 400
Ω, 4 kΩ,
100 kΩ

2 (sinking
or
sourcing)

5 to 30

1A

12 V, 50 mA sensor power
output, 50/60 Hz rejection, battery
backup support
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Application and Technology
Power
You can power the NI WSN measurement nodes with four 1.5 V AA alkaline battery cells, delivering three-year battery-powered operation at a one-minute sample interval. The NI
WSN-3226 also supports 1.5 V AA lithium cells. Each node features an external power port, so you can provide line power or use other forms of power such as solar or vibration

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