User Guide
- Preface
- Product Introduction
- Compatibility
  This chapter introduces the device compatibility and describes the steps to check the compatible systems.
- Install the Device
- Operation Guide
- Appendix: Wiring Diagrams
  This chapter describes the wiring diagrams of the thermostat if there is a C wire. If there is no C wire or common wire, it is possible to use a Power Extension Kit (PEK). For details, please contact Milesight.
BACnet Object List
Payload Protocol (JSON)
Payload Protocol (HEX)

2.3 Hardware Introduction

Hardware Overview

Front View


Part	Description
NFC Area	Enables wireless configuration via Milesight ToolBox App.
Button 1	Turn on/off the temperature control system.
Button 2	When control permission is Thermostat, each press adds the target temperature by 0.5 or 1 (depends on the Target Temperature Resolution).
Button 3	When control permission is Thermostat, each press reduces the target temperature by 0.5 or 1 (depends on the Target Temperature Resolution).
Button 4	When control permission is Thermostat, switch the fan mode.
Button 5	When control permission is Thermostat, switch the temperature control mode.

Back View


Part	Description
DIP Switch (WT201 Only)	Switch between RC&RH and Only RC according to the wiring system.
USB Type-C	Used for power supply during configuration or device console.

Screen Display

System On-Thermostat Mode:

System On-Remote Control Mode:

System Off:


Icon	Description
Time	Display the current time.
Child Lock	All buttons locked: Normal display. Partial locked: Display only when the locked button is pressed.
LoRaWAN^® Network Status	Display network status. Blinks: The network is de-activated. Static On: The network is activated. Blinks Twice: Send a LoRaWAN^® uplink packet.
Humidity	Display the ambient humidity.
Temperature	Display the ambient temperature.
Temperature Control Plan	Display current executed schedule name.
Temperature Control Mode	Display current temperature control mode.
Target Temperature	Display the target temperature.
Fan Mode	Display current fan mode.

Reboot and Reset Descriptions


Function	Operation	Screen
Reboot	Press and hold the button 1 and button 5 for more than 3s.	Slowly Blinks
Reset to Factory Default	Press and hold the button 1 and button 5 for more than 10s.	Quickly Blinks

Dimensions

The following figures show the device dimensions (unit: mm).

The following figures show the decorative cover plate dimensions (unit: mm).