Hardware Introduction

Hardware Overview

Front View


Part	Description
System Key	When enabled, turns the device on/off or restores factory settings. Disabled by default. For more details, see System Key Description.
NFC Area	Used to access and configure the device via the Milesight ToolBox app.
+/- Buttons	Adjust the scale level, target temperature, or target valve opening when the display is on.
LCD Display	The display is normally off. Press any button once to wake the display. For more details, see LCD Display Description.
Valve Base Plate	Mounts the device to a valve with an M30 × 1.5 mm thread. For other valve types, refer to the Compatibility Guide to install a compatible valve adapter first.

Back View


Part	Description
Vent Holes	Allow ambient air to reach the internal NTC sensor for timely and accurate temperature measurement.
Battery Compartment	Houses the battery for power supply.
Fixing Screw Hole	Used to secure the battery compartment cover.

System Key Description

Note: The system key is disabled by default. Enable it in the ToolBox app if needed.


Function	Operation	LCD Display
Power On	When the device is off, press and hold the system key for more than 3 seconds.	On
Power Off	When the device is on, press and hold the system key for more than 3 seconds.	Slowly Blinks → Off
Restore Factory Settings	Press and hold the system key for more than 10 seconds.	Blinks Rapidly

LCD Display Description


Icon	Description
	Ambient Temperature: Press any button once when the LCD is off. Disabled by default. Scale Level: In Scale Level Control mode, press + or − to display the scale level. Target Temperature: In Integrated Control mode, press + or − to display the target temperature. Valve Opening: In Valve Opening Control mode, press + or − to display the valve opening. Disabled by default.
	Displayed when a locked button is pressed.
	Displayed when the device battery is low.
	Displayed while the device is increasing the valve opening.
	Displayed when Open Window Detection is triggered. Disappears when the condition is cleared.
	Displayed when the device is not connected to the network. Disappears after the network connection is restored.

Dimensions

The following figure shows the device dimensions (unit: mm).