Preface

Applicability

This guide is applicable to below models:

Model Description
WS501 (PN: 3W-W12-US) Neutral required version.
WS501 (PN: 3W-W11-EU)
WS502 (PN: 3W-W11-EU)

Copyright Statement

This guide may not be reproduced in any form or by any means to create any derivative such as translation, transformation, or adaptation without the prior written permission of Xiamen Milesight IoT Co., Ltd (Hereinafter referred to as Milesight).

reserves the right to change this guide and the specifications without prior notice. The latest specifications and user documentation for all Milesight products are available on our official website http://www.milesight.com

Safety Instruction

These instructions are intended to ensure that user can use the product correctly to avoid danger or property loss. Milesight will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide.

Warning: Serious injury or death may be caused if any of these warnings is neglected.
  • The installation and maintenance must be conducted by a qualified service person and should strictly comply with the electrical safety regulations of the local region.
  • Ensure the breaker is powered out during the installation.
  • To avoid risk of fire and electric shock, do keep the product away from rain and moisture before installed.
CAUTION: Injury or equipment damage may be caused if any of these cautions are neglected.
  • Do not leave any object inside the switch box when installation.
  • The device must not be modified in any way.
  • In order to protect the security of the device, please change the device password when first configuration. The default password is 123456.
  • Do not overload the maximum capacity to avoid damaging the device.
  • The device is intended for indoor use only. Do not place the device where the temperature is below/above the operating range.
  • Do not place the device close to naked flames, heat source (such as oven or sunlight), cold source, liquid, and objects with extreme temperature changes.
  • Use the device in a clean environment only. Dusty or dirty environments may prevent the proper operation of this device.
  • The device must never be subjected to physical shocks or strong vibration.

Revision History

Release Date Version Description
June 24, 2022 V 1.0 Initial version
October 26, 2022 V 1.1 Add 2-wire version model
Jan. 22, 2025 V 1.2
  1. Remove 2-wire version model
  2. Update ToolBox screenshots.
April 23, 2025 V 1.3 Add Milesight D2D Controller feature and dual-control example