Thank you for purchasing the ZB External Temperature Sensor from Jetlun. The Jetlun ZB External Temperature Sensor is a ZigBee-enabled thermistor. It has one external thermistor input. You can use it to measure temperature in boilers, chillers and more. The applications are limitless. Powered by either 12/24V AC/DC, the ZB External Temperature Sensor comes built in with 2- relays for On/Off control. By default, relay # 1 is normal close, and relay #2 is normal open.


External Temperature Sensor Features

  • One thermistor probe input
  • Built-in two 12/24V AC/DC relays
  • ZigBee enabled
  • 12/24V AC/DC power option


Physical Description

A: 2.0" (52mm)

B: 3.0" (76mm)

C: 4.2 (106mm)

D: 1.4" (36mm)

Input/Output Description

Power/ ZigBee

  • Solid Green for 15 seconds indicates there is power to the device
  • Fast Blinking Green indicates it is restoring to its factory default settings
  • Slow Blinking Green indicates it successful join to a network but time is unsychronized
  • Solid Green indicates joining success to a network
  • Blinking Orange indicates it is searching for a available network


LED Indicators



Package Contents