Milesight WT101 Smart Radiator Thermostat User Guide

Milesight WT101 Smart Radiator Thermostat

Safety Precautions
Milesight will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide.

• The device must not be disassembled or remodeled in any way.
• The device is not intended to be used as a reference sensor, and Milesight will not should responsibility for any damage which may result from inaccurate readings.
• Do not paint or clean the PIR lens, or it will affect the detection of the device.
• Do not place the device where the temperature is below/above the operating range.
• Do not place the device close to objects with naked flames, heat source (such as oven), or exposure to sunlight, cold source, liquid, and extreme temperature changes.
• Remove the battery from the device if it is not to be used for an extended period. Otherwise, the battery might leak and damage the device.
• The device must never be subjected to shocks or impacts.

Declaration of Conformity
WT101 is in conformity with the essential requirements and other relevant provisions of the CE and RoHS.

Copyright © 2011-2023 Milesight. All rights reserved.
All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.

For assistance, please contact Milesight technical support:

• Email: iot.support@milesight.com Support Portal: support.milesight-iot.com Tel: 86-592-5085280
• Fax: 86-592-5023065 Address: Building C09, Software Park Phase III, Xiamen 361024, China

Revision History

Product Introduction

Overview
WT101, a LoRaWAN® radiator thermostat to help with managing the heating- control system. With 1 pre-set date period and up to 16 customized heating plans, it enables the smart management of heating system and save unnecessary cost in a way. WT101 is a smart and highly environment-sensitive products, abnormal temperature difference and extreme-low temperature can quickly trigger it and it will take fast steps in correcting them by adjusting the valve opening. Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can control the room temperature as well as triggering other sensors or appliances easily via webpage or mobile App remotely.

Key Features

• Adjust the room temperature automatically and manually with a time-controlled regulation
• Up to 16 heating schedules within 1 pre-set Date Period
• Built-in temperature sensor, enabling environmental detection and accurate control
• Intuitive and direction adjustment LED display to suit different installation environments
• Support open-window detection and freeze protection
• Equip with child-lock to enable tamper-proof in public area
• Tamper button design and theft-deterring collar for structural anti-theft protection
• Suit most common radiator valves with optional valve adapters for universal use
• Easy to install with simple lock design without further setting
• Equipped with NFC for one-touch configuration and support card emulation mode
• Function well with standard LoRaWAN® gateways and network servers

Hardware Introduction

Packing List

Valve Adapter (Optional)

• If any of the above items are missing or damaged, please contact your sales representative.

Hardware Overview

Button and LED Patterns

Check On/Off Status

| Quick press the reset button once or rotate the control knob.| Light On: Device is on.
Light Off: Device is off.

Reboot

| Press and hold the reset button for more than 3 seconds.|

Blink slowly

Reset to Factory Default

| Press and hold the reset button for more

than 10 seconds.

|

Blink quickly

Motor Stroke Calibration

| The device is installed and the tamper & calibration button is pressed.| Flashes      in    circle     -> Blinks twice

Tamper

| The device is removed and the tamper &

calibration button is released.

|

Light on for 1s

Dimensions (mm)

Power Supply

1. Separate the base plate from the device by rotating it anticlockwise.
2. Open the metal battery cover by pushing it.
3. Install the two batteries with correct direction, which is shown on the battery cover.
4. Restore the battery cover in place. After installing the batteries, the device will turn on automatically and the LED display will light on for 3s.

Note:

1. The device can be powered by 1.5V AA Li-FeS2 or alkaline batteries, not Li-SoCl2 batteries. It is suggested to use Li-FeS2 batteries which has longer battery life than alkaline batteries.
2. Make sure both batteries are newest when install, or battery life will be reduced.
3. After installing the batteries, the device will show and report battery level as 100% at the first time even for old batteries. The device will calculate the battery level after one hour.

Installation Instruction

Adapter Selection
The valve base plate can be used for all valves with a thread size of M30 × 1.5 mm from the most common manufacturers without any accessories. For other valve types, select the corresponding adapter and mount it on the valve .

Thermostat Installation

1. Place the base plate on the valve or valve adapter and screw it tightly. The groove on the base plate should be faced to the direction of display.
2. Rotate the device clockwise to secure it on the base plate and fix the hex socket cap fixing screw to the screw hole on the front of device. When rotating and device to base plate, the calibration & tamper button will be pressed and the motor on the device will start calibrating. When the LED displays the temperature with two blinks, the calibration is completed.
3. Cover the fixing screw with the screw cap.
4. Fix the theft-deterring collar to the base plate with screw and the nut.

Operation Guide

NFC Configuration
WT101 can be monitored and configured via NFC. Please refer to the following configuration steps.

1. Download and install the Milesight ToolBox App from Google Play or Apple App Store.
2. Enable NFC on the smartphone and launch Milesight ToolBox.
3. Attach the NFC area of a smartphone to the device, and click NFC Read to read device information. The basic information and settings of the device will be shown on ToolBox App if it’s recognized successfully. You can read and configure the device by tapping the Read/Write device on the App. In order to protect the security of the device, please change the password when first configuring. The default password is 123456.

Note:

1. Ensure the location of NFC area of the smartphone and it’s recommended to take off phone case.
2. If the smartphone fails to read/write configurations via NFC, remove the phone and try again.

LoRaWAN® Settings
Configure AppEUI, Join Type, Application Key, and other basic LoRaWAN® information. You can also keep all settings by default.

port is 85.
Join Type| OTAA and ABP modes are available.

Application Key

| Appkey for OTAA mode, the default is

5572404C696E6B4C6F52613230313823.

Network Session Key| Nwkskey for ABP mode, the default is 5572404C696E6B4C6F52613230313823.
Application

Session Key

| Appskey for ABP mode, the default is

5572404C696E6B4C6F52613230313823.

Device Address| DevAddr for ABP mode, the default is the 5th to 12th digits of the SN.
LoRaWAN® Version|

V1.0.2 and V1.0.3 are available.

Work Mode| It’s fixed as Class A.
RX2 Data Rate| RX2 data rate to receive downlinks.
RX2 Frequency| RX2 frequency to receive downlinks. Unit: Hz
Supported| Select the frequency plan and enable the frequencies to send uplinks.
Frequency|
---|---

Confirmed Mode

| If the device does not receive an ACK packet from the network server, it will

resend data once.

Rejoin Mode

| Reporting interval ≤ 35 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every reporting interval or every double reporting interval to validate connectivity; If there is no response, the device will re-join the network.

Reporting interval > 35 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every reporting interval to validate connectivity; If there is no response, the device will re-join the

network.

Set the number of packets sent

| When the rejoin mode is enabled, set the number of LinkCheckReq packets to send.

Note: the actual sending number is Set the number of packet sent + 1.

ADR Mode| Allow network server to adjust data rate of the device.
Spread Factor| If ADR is disabled, the device will send data via this spread factor.
Tx Power| Transmit power of the device.

Note:

1. Please contact sales for device EUI list if there are many units.
2. Please contact sales if you need random App keys before purchase.
3. Select OTAA mode if you use Milesight IoT cloud to manage devices.
4. Only OTAA mode supports rejoin mode.

General Settings

Automatic Temperature Control: set target temperature to control the valve opening status. When using this mode, the target temperature can be set via ToolBox App, control knob or downlink command.

Target Temperature

| Set target environment temperature. The device will adjust the valve

every 10 minutes if the gap between target temperature and current temperature is more than tolerance value.

Target Temperature

Tolerance

| Set the tolerance value between target temperature and current

temperature.

Target Temperature Regulation Range| Set the range for control knob to adjust the target temperature. Max range: 16 – 35 °C, min range: 5 – 15 °C, default range: 10 – 28 °C.

Open Window Detection

| When the device detects the temperature drops over cooling rate, it will stop temperature control and report open window status; when the device detects the temperature rising for 10 minutes or reaching target

temperature, it will start temperature control and report normal status.

Cooling Rate| Set the detecting condition of window open.
Stop temperature control for..| The device will start temperature control even it still detects the window open after this interval.

Valve Opening Control: control valve opening status to adjust the temperature. 0% means valve is all closed and 100% means valve is all open. When using this mode, the valve opening percentage can be set via ToolBox App, control knob or downlink command.

Note:

1. When rotating the control knob, the LED display will show corresponding valve opening percentage and current temperature. Every rotating step is 5%.
2. When setting the valve opening percentage as 100%, the LED display will only show 99.

Advanced Settings

Calibration Settings
Motor Stroke Calibration: click to calibrate the motor stroke when the device is installed to the valve. After calibration, the device will report a calibration result packet. Temperature Calibration: set the calibration value, the device will add calibration value to the current temperature value and report the final value.

Heat Schedule
WT101 supports to set at most 16 heat schedules within 1 pre-set date period.

1. Sync the device time via ToolBox App. Besides, the device can also ask for the time from network server when setting LoRaWAN version as 1.0.3.
2. Set a heating date period, and the reporting interval except the heating date period. Temperature control will stop during non-heating period.
3. Set time-based control events and these events only execute within the heating date period. If the repeat day is not selected, this event will only execute once.
4. Click Save Schedule to export above settings as a schedule file. Click Select Schedule to import the schedule file to another device.

Maintenance

Backup
WT101 supports backup templates for easy and quick configuring devices in bulk. The backup feature is only for devices with the same model and LoRaWAN® frequency band.

1. Go to Template page on the App and save the current settings as a template. The saved templates are also editable.
2. Select one saved template and click Write, then attach the smartphone to another device via NFC to reuse the template.
   Note: Slide the template item to the left to edit or delete the template. Click the template to edit the configurations.

Upgrade

1. Download firmware from the Milesight website to your smartphone.
2. Go to Device > Maintenance of ToolBox App, tap Browse to import firmware and upgrade the device.

Note:

1. Operation on ToolBox is not supported during the upgrade.
2. Only the Android version of ToolBox supports the upgrade feature.

Reset to Factory Default
WT101 supports two methods to reset the device which are as following:

• Via Hardware: Press and hold the reset button for more than 10s until the LED display blinks quickly.
• Via ToolBox App: Go to Device > Maintenance to tap Reset, then attach the smartphone to the device via NFC to complete the reset.

Device Payload
All the data is based on the following format (HEX), the Data field should follow the little-endian:

For decoder examples please find the files on
https://github.com/Milesight-IoT/SensorDecoders.

Basic Information
WT101 reports basic information whenever joining the network.

ff

| 0b (Power On)| Device is on
01(Protocol Version)| 01=>V1
16 (Device SN)| 16 digits
09 (Hardware Version)| 01 40 => V1.4
0a (Software Version)| 01 14 => V1.14
0f (Device Type)| 00: Class A, 01: Class B, 02: Class C

Example:

ff0bff ff0101 ff166791d19604050005 ff090100 ff0a0101 ff0f00

Channel| Type| Value| Channel| Type| Value
ff| 0b

(Power On)

| ff

(Reserved)

| ff| 01

(Protocol Version)

| 01

(V1)

Channel| Type| Value| Channel| Type| Value
ff| 16

(Device SN)

| 6791d19604050

005

| ff| 09

(Hardware Version)

| 0100

(V1.0)

Channel| Type| Value| Channel| Type| Value

ff

| 0a

(Software Version)

| 0101 (V1.1)|

ff

| 0f (Device Type)| 00

(Class A)

Sensor Data

Battery Level

|

01

|

75

| UINT8, Unit: %

Note: the device will report a low battery packet when it drops to 10%.

Current Temperature| 03| 67| INT16, Unit: °C, Resolution: 0.1 °C
Target Temperature| 04| 67| INT16, Unit: °C, Resolution: 0.1 °C
Valve Opening

Percentage

|

05

|

92

|

UINT8, Unit: %

Tamper Status| 06| 00| 00: Installed, 01: Uninstalled
Open Window Detection|

07

|

00

|

00: Normal, 01: Open

Motor Calibration Result

|

08

|

e5

| 00: Success

01: Fail, out of range 02: Fail, uninstalled

03: Calibration cleared

04: Temperature control disabled

Motor Stroke| 09| 90| UINT16
Freeze Protection| 0a| 00| 00: Back to Normal, 01: Triggered

Motor Position

|

0b

|

90

| UINT16, current motor position

Note: when motor position =motor stroke,

the valve is all closed; when motor position is 0, the valve is all open.

Examples:

1. Automatic Temperature Control periodic packet: report as reporting interval (10 minutes by default).
   017564 0467e600 03670701 0b903a02 09903a02

   Channel| Type| Value| Channel| Type| Value
   01| 75| 64=>100%| 03| 67| Temp: 07 01=>01

07=263*0.1=26.3°C

Channel| Type| Value| Channel| Type| Value

04

|

67

| Target Temp: e6 00=>00 e6=230

*0.1=23°C

|

09

|

90

| Motor Stroke: 3a 02=>02 3a=570
Channel| Type| Value|  |  |
0b| 90| Motor Position: 3a

02=>02 3a=570

|  |  |
2. Valve Opening Control periodic packet: report as reporting interval (10 minutes by default).
017564 03670f01 05925f 0b901c00 09904002

Channel| Type| Value| Channel| Type| Value
01| 75| 64=>100%| 03| 67| Temp: 0f 01=>01

0f=271*0.1=27.1°C

Channel| Type| Value| Channel| Type| Value
05| 92| 5f=>95%| 09| 90| Motor Stroke: 40

02=>02 40=576

Channel| Type| Value|  |  |
0b| 90| Motor Position: 1c

00=>00 1c=28

|  |  |
3. Motor calibration packet: report when the motor start calibrating.
08e500 09903a02

Channel| Type| Value| Channel| Type| Value
08| e5| 00=success| 09| 90| Motor Stroke: 3a

02=>02 3a=570

4. Open Window Detection: reports when detecting the window open or returns back to normal status.
   070001 03679600

   Channel| Type| Value| Channel| Type| Value
   07| 00| 01=open| 03| 67| Temperature: 96 00 =>00

96 = 150 * 0.1 = 15 °C

5. Freeze Protection: report when freeze protection is triggered or released.
   0a0001 03671500 05925f

   Channel| Type| Value| Channel| Type| Value

0a

|

00

| 01=freeze protection is triggered|

03

|

67

| Temperature: 15 00 =>00

15 = 21 * 0.1 = 2.1 °C

Channel| Type| Value|  |  |
05| 92| 5f=>95%|  |  |
6. Tamper packet: report when the device is removed from base plate.
060001 08e503

Channel| Type| Value| Channel| Type| Value
06| 00| 01=uninstalled| 08| e5| 03=Calibration cleared

Downlink Commands
WT101 supports downlink commands to configure the device. The application port is 85 by default.

ff

| 10 (Reboot)| ff
17 (Time Zone)| 2 Bytes, UTC timezone * 10

8e (Reporting Interval)

| 3 Bytes,

Byte 1: 00

Byte 2-3: interval time, unit: min

ab (Temperature Calibration)

| 3 Bytes,

Byte 1: 00-disable, 01-enable Byte 2-3: calibration value*10

b3 (Temperature Control)| 00-disable, 01-enable

ae (Temperature Control Mode)

| 00: Automatic Temperature Control 01: Valve Opening Control

b1 (Target Temperature)

| 3 Bytes,

Byte 1: target temperature, unit: °C

Byte 2-3: target temperature tolerance*10, unit: °C

af (Open Window Detection)

| 3 Bytes,

Byte 1: 00-disable, 01-enable

Byte 2: cooling rate*10, unit: °C/min Byte 3-4: stop temperature control time,

57 (Release Open Window

Status)

|

ff

b4 (Valve Opening Percentage)| 1 Byte, unit: %

b0 (Freeze Protection)

| 3 Bytes,

Byte 1: 00-disable, 01-enable

Byte 2-3: threshold temperature*10, unit: °C

25 (Child Lock)| 00-disable, 01-enable

Examples:

1. Reboot the device.
   ff10ff

   Channel| Type| Value
   ff| 10 (Reboot)| ff

2. Set reporting interval as 2 minutes.
   ff8e 00 0200

   Channel| Type| Value
   ff| 8e (Reporting Interval)| 02 00=>00 02=>2 mins

3. Enable temperature and set calibration value.
   ffab01fdff

   Channel| Type| Value
   ff| ab (Temperature Calibration)| 01=Enable

fdff=>fffd=-3*0.1=-0.3

4. Set time zone.
   ff17ecff

   Channel| Type| Value
   ff| 17| ec ff => ff ec = -20

the time zone is UTC-2

5. Set target temperature.
   ffb1190100

   Channel| Type| Value

ff

| b1 (Target Temperature)| Target temperature: 19 =>25 °C Temperature Tolerance: 0100=>00 01*0.1=0.1°C
6. Set open window detection.
ffaf011e 3c00

Channel| Type| Value

ff

| af (Open Window Detection)| 01=enable

Cooling rate: 1e=30*0.1=3 °C/min Stop control time: 3c00=>00 3c=60 minutes

7. Set valve opening percentage.
   ffb432

   Channel| Type| Value
   ff| b4 (Valve Opening Percentage)| 32=>50%

8. Set freeze protection.
   ffb0011e00

   Channel| Type| Value
   ff| b0 (Freeze Protection)| 01=enable

Threshold temperature: 1e00=>00 1e=30*0.1=°C

References

• Support : IoT Support
• GitHub - Milesight-IoT/SensorDecoders

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