Wireless Data Acquisition

WiSI - Wireless Sensor Interface
WiSI - Wireless Sensor Interface M2M Certified

Introducing WiSI ("Why-Sigh"). WiSI is an all-in-one radio, IP-67 rated outdoor/weather-proof data acquisition and control device designed for rapid deployment to monitor and control remote sensors.

WiSI feature model has an integrated solar panel, 10-year maintenance-free energy storage and communicates up to a week without sunlight. With a 2.4GHz radio, data is passed up to 2 miles per hop with 128-bit AES encryption.

Standard I/O includes 4 each: analog inputs, digital inputs, digital outputs; 5V and 18VDC instrument supplies for powering sensors or a 4-20mA loop, and an RS232 port. WiSI wireless networks integrate into systems via Modbus RTU.


   WiSI Datasheet

   WiSI Product Reference

   WiSI Quickstart Guide

   WiSI Network Guide

   WiSI Brochure

  • Up to 2 mile range per hop at 2.4GHz - no license required
  • 128-bit AES encryption
  • Solar power with backup power for running overnight*
  • No maintenance / no batteries to change*
  • 5 volt and 18 volt supply for powering sensors
  • Modbus interface provides flexibility - view collected data and dynamically adjust system
  • Low power indication
  • Environmental Protection IP 67 rated enclosure
  • User definable alarming conditions for AI & DI channels
  • Digital I/O mapping - 2 nodes
  • Transmit LED
  • Onboard switch to force transmission
  • Onboard temperature measurement
  • Serial port for modifying settings and sending data
  • Easily integrates with Rugid RTUs - automatic array generation
  • Easy installation - only need to attach local signal wires
  • Easy network setup through FREE configuration software
  • Low power, suitable for energy harvesting applications
  • Viewable signal strength for installation and debugging
  • Fits inside standard 2-inch ID pipe
  • 4 12-bit analog inputs, hardware pre-configured with a combination of the following types (please check WiSI ordering page for offerings):
    •0 - 5 volts or 0 - 2.5 volts
    •0 - 20 mA
    •±1.8 volts
    0 - 2.2 volt
  • 4 digital inputs (powered, 0 - 24V input).
  • 4 digital outputs (0 - 42V, 2A).
  • 5 volt DC instrument supply (25 mA total combined 5V & 18V supplies).
  • 18 volt DC instrument supply (25 mA total combined 5V & 18V supplies).
I/O Connections
  • IP 67 rated backshell houses connections and seals to the WiSI package for a water-tight fit.
  • High-density DB-26 solder-cup or crimp-contact capable of accepting 22 AWG wire.
WiSI Backshell
Antenna Options
  • Embedded 2.5 db gain omni antenna.
  • RP-SMA connector for attaching external antenna.
  • Local solar panel and maintenance-free energy storage or external 6-12 volts DC*.
  • External 6-24 volts DC**.
  • As low as 2mA at 12.5 volts DC, 25mA load**.
  • IP 67 rated thermoplastic outdoor enclosure.
  • IP 67 rated backshell for housing connections.
  • Easily mounts inside a 2-inch ID pipe or backpan**.
  • The WiSI is programmed via our configuration console software which is available FREE from our downloads page.

*SP package

**EP package