iO Wireless Relay
iO Wireless Relay
Item # iO-WR
Alternate Item # WR-400

Formerly the WR-400

The iO-WR Wireless Relay Kit allows you to wirelessly control hundreds of applications. The iO-WR realy can energize a relay up to 100'  depending on the construction of the building. A limitless number of Wireless Relay Kits can be installed in the same building.

The Wireless Relay Kit contains two 4-channel transceivers. The base module has 3 transmitting channels and 1 receiving channel. The satellite module has 3 receiving channels and 1 transmitting channel. Each transceiver module uses a redundant transmission protocol for fail-safe protection. If either module does not receive a valid ON or OFF transmission signal within 60 seconds, the output or outputs will be turned off.

Features and Benefits
  • Can control or monitor the following:
    • Cooling equipment
    • Heating equipment
    • Condensing units
    • Fans
    • Pumps
    • Lighting
    • Industrial equipment
  • Satellite Transceiver can be mounted outdoors 
  • Built-in signal strength indicator
  • 1-year warranty



Product Specifications
Base Module Dimensions
5.125” x 2.625” x 1.125 (WHD)
Base Module Input Voltage
Satellite Module Dimensions
5.125” x 2.625” x 1.125” (WHD)
Satellite Module Input Voltage
Base - 3 transmit/1 receive
Satellite – 1 transmit/3 receive
Contact Rating
1A per channel
A limitless number of relay kits can be installed in the same building
Communications Protocol
915MHz proprietary protocol
Communications Range
Up to 100’ depending on the building type


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5418 Elmwood Ave | Indianapolis IN 46203 | 888-652-9663