Relay Controller


The Relay Controller from Jetlun is an ultra-slim, ZigBee-enabled, general purpose relay switch that includes up to eight (8) relays and a built-in temperature and humidity sensor. The Relay Controller allows virtually any device connected to send and receive a ZigBee signal for automation. It is ideal for a variety of applications, including but not limited to HVAC control, irrigation, and security.


  • General purpose 24V AC On/Off relays
  • Ultra-slim, compact design
  • Simple installation process
  • Over-the-Air (OTA) upgrade feature
  • Intuitive LED indicators for easy troubleshooting
  • Specifications

    Standard Compliance IEEE 802.15.4
    Interface 8 terminal blocks
    Data Rate Up to 250 kbps
    Security 128-bit AES Encryption
    TX/TX Sensitivity -99dBm Rx typ. (-100 in boost mode) at 1% packet error rate and +3dBm TX output power (+5dBm in boost mode)
    Temperature Range 104ºF to 212ºF (-40ºC to 100ºC)
    Temperature Accuracy +/- 0.5ºC
    Temperature Resolution 0.01ºC
    Humidity Measure Range 10 to 95% Relative Humidity
    Humdiity Measurement Resolution 0.01%
    Humidity Accuracy 5% Relative Humidity
    Power Requirements
    Power Supply 24V AC 50/60Hz
    Power Consumption Max 1.5W
    Dimensions (LxWxD) 4.1x3.7x0.9"F (104x94x22)
    Weight 0.25 lbs (0.55 kg)
    Operating Temperature 32ºF to 122ºF (0ºC to 50ºC)
    Operating Humidity 10 to 90% non-condensing
    Storage Temperature -40ºF to 130ºF (-40ºC to 55ºC)
    Storage Humidity 5 to 95% non-condensing
    Regulatory Approvals
    Safety CE, SAA, UL, cUL
    Emissions CE, C-Tick, FCC Part 15 (Class B)
    Other RoHS, WEEE Complaint

    Ordering Information

    Part No. Description
    A2-777270-HR-21 Relay Controller