Milesight Sensor WT101-868M
Milesight WT101 is a smart radiator thermostat with LoRaWAN control for efficient heating management. It integrates a high-accuracy temperature sensor (±0.5 °C), supports up to 16 heating schedules, and includes safety features like open window detection and child lock.
General configuration
Overview
For sensor configuration, use the Milesight ToolBox mobile application, available on both:
- Apple App Store: https://apps.apple.com/us/app/milesight-toolbox/id1518748039
- Google Play Store: https://play.google.com/store/apps/details?id=com.ursalinknfc&hl=en&pli=1
QR code – Milesight ToolBox
Installation and configuration
- Configuration is done via NFC.
- After reading the device, go to the Basic Information tab to update the Device Time.
- Setting the correct date and time is required for all devices.
LoRaWAN connection
- Devices are preconfigured with an AppKey for OTAA (default values are listed in the user manual).
- The gateway must be set to Public. If the gateway is configured as Private, devices will not be able to join the network.
Power supply
| Type | Value |
|---|---|
| Power | CR2450 battery |
LoRaWAN configuration
| Parameter | Value |
|---|---|
| Join type | OTAA |
| AppEUI | 24E124C0002A0001 |
| AppKey | 5572404C696E6B4C6F52613230313823 |
Data Encoding & Decoding
| Type | GitHub Link |
|---|---|
| Decoder | View decoder |
| Encoder | View encoder |
| Codec | View codec |
Technical Specifications
| Parameter | Value |
|---|---|
| Wireless Transmission | |
| Protocol | LoRaWAN® |
| Frequency | IN865 / RU864 / EU868 |
| Tx Power | 16 dBm (868 MHz) |
| Sensitivity | -137 dBm |
| Mode | OTAA / ABP Class A |
| Valve Control | |
| Actuator | Stepping Motor |
| Default Fitting | M30 × 1.5 mm |
| Optional Adapters | RA, RAV, RAVL, Giacomini, M28 (Comap, Herz, TA) |
| Advanced Features | Auto temperature control, Heat plans, Freeze protection, Open-window detection, Tamper alarm |
| Temperature Sensor | |
| Type | NTC |
| Range | -20°C ~ +60°C |
| Accuracy | ±0.5°C (0–50°C) |
| Resolution | 0.1°C |
| Others | |
| Display | LED display (white light) |
| Buttons | Control knob, Calibration/Tamper (internal), Reset (internal) |
| Software | NFC App / Downlink |
| Advanced Features | Child lock, External sensor mode, FUOTA |
| Physical Characteristics | |
| Power Supply | 2 × AA Li-FeS2 (3000 mAh total) |
| Battery Life | ~5–8 years (depending on SF) |
| Operating Temp | -20°C ~ +60°C |
| Storage Temp | -40°C ~ +70°C (without battery) |
| Humidity | 0–95% RH (non-condensing) |
| Ingress Protection | IP30 |
| Dimensions | Φ52 × 90 mm |
| Weight | 170 g (with batteries) |
| Material | Stainless + ABS, White |
| Installation | Valve latch |
| Approvals | CE, RoHS |
Integration resources and distribution links
| Resource | Link |
|---|---|
| HARDWARIO Store | https://www.hardwario.store/p/milesight-wt101 |
| Official page | https://www.milesight.com/iot/product/lorawan-sensor/wt101 |