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Wire Application
Thermostat Wiring
HVAC Product Type
Zone Controllers
Radio Frequency (RF)
RF Receiver
RF Transmission
# of Channels
4 Channels
Failure Type
Fail Safe
24V AC
Ease of Installation
Beginner (Installs < 10 minutes)
Jackson Systems
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Use this Wireless Relay if your HVAC Installation Needs More Wires or if one is Broken
Jackson Systems WR-400 Wireless Relay
Jackson Systems WR-400 Wireless Relay
Jackson Systems WR-400 Jackson Systems WR-400 4-Channel Wireless Relay Transmitter/Receiver (Pair)
Item# 30239
Price: Normally $199.99 
Hot Deal $173.49
Free shipping on orders over $175 - See Details


  • Shipped as a pair
  • Up to 6 house codes
  • Failsafe protection
  • Operates on 24VAC from system

Essential Info

Have you ever needed another wire or two when installing a thermostat or other component of your HVAC system? Now you don't have to pull a new cable! Use these transceivers instead. The base module can transmit 3 channels, and the satellite module can send one channel. The pair can effectively take the place of 4 conductors of HVAC cable. They operate on 24VAC from your system or a 24VAC power supply. Maximum range of up to 200' and there are 6 programmable house address codes. The command protocal requires feedback, so the failsafe feature turns all outputs off if no acknowledgement signal is received within 60 seconds.


What's Included

  • 2x - 4-Channel Wireless Relay Transmitter/Receiver
  • 1x - Instructions

  • Specifications

    ManufacturerJackson Systems
    Manufacturer Product No.WR-400
    Channels3 Send, 1 Receive
    Relay Contact Rating1A per Channel
    AddressesUp to 6
    RF Frequency915MHz
    RangeUp to 200'
    Power Requirement24VAC 2.8VA
    Dimensions2.25" x 2.5" x 1"

    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Jackson Systems LLC, Tel: (888) 652-9663


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