Milesight Sensor WT101
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.
Integration Links
General configuration
Configuration is done via NFC using the Milesight ToolBox app.
For sensor configuration instructions, see 👉 General configuration.
LoRaWAN Network Options
For information about supported LoRaWAN network server platforms, see 👉LoRaWAN Network Options
LoRaWAN configuration
| Parameter | Value |
|---|---|
| Join type | OTAA |
| AppEUI/JoinEUI | 24E124C0002A0001 |
| AppKey | 5572404C696E6B4C6F52613230313823 |
DevEUI (Device Extended Unique Identifier) is unique for each device and can be found printed on the device label.
Data Encoding & Decoding
| Type | GitHub Link |
|---|---|
| Decoder | View decoder |
| Encoder | View encoder |
| Codec | View codec |
Terminology Overview
Decoder -> Converts the device’s binary payload into readable JSON.
Encoder -> Converts JSON commands into binary payload for downlinks.
Codec -> Defines the rules for decoding and encoding (structure, fields, ports) used by network servers.
Power supply
| Type | Value |
|---|---|
| Power | CR2450 battery |
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 |