Controls HVAC via Milesight controllers
Controls HVAC via Milesight controllers: furnaces, AC, heat pumps, boilers, PTAC.
WT401 Milesight Wireless Smart Thermostat
Wireless Smart Thermostat
Order codeWT401 In stockOfficial distributor
The WT401 is a Wireless Smart Thermostat. It offers multiple temperature and fan modes for precise temperature adjustment in buildings. It has an IP30 housing as listed in the specification.
- LoRaWANIN865/RU864/EU868/US915/AU915/
- Power2 × 2700 mAh ER14505 Li-SOCl2
- ProtectionIP30
- Operating–20 … +60 °C
- In stockVilnius warehouse · EU
- In stockLondon warehouse · UK
Dispatch and lead time are confirmed in the quote.
- Official distributor
- 17+ years in IoT
- Installation support
Manufacturer warranty24 months
Overview
WT401 overview
Overview
The WT401 is a LoRaWAN wireless smart thermostat that supports a wide range of heating and cooling systems through BMS systems or paired Milesight HVAC controllers. It offers multiple temperature and fan modes for precise temperature adjustment in buildings.
E-Ink Display & Sensing
A 2.7-inch black-and-white e-ink screen continuously shows room status, while the embedded temperature and humidity sensor monitors the ambient environment for accurate control.
Presence-Based Energy Saving
An onboard PIR sensor detects human presence to drive energy-saving temperature control, automatically adapting the room to occupancy.
Flexible HVAC Integration
The WT401 works with most HVAC systems via Milesight UC7111 controllers and with radiators via the WT101/WT102 thermostats, supporting eight working plans with manual or automatic adjustment.
Flexible Power & Installation
Battery, 24V AC/DC, USB-C or PowerBus options enable wire-free or wired installation, with mounting for walls and 60/86/118/120 mm boxes via wall-plate accessories.
Management
NFC and Bluetooth 5.0 enable one-touch configuration, while multicast and FUOTA support bulk control and remote firmware updates over standard LoRaWAN networks.
Key features
Works with radiators via WT101/WT102
Works with radiators via WT101/WT102 thermostats.
2.7-inch black & white e-ink
2.7-inch black & white e-ink display.
PIR sensor for presence-based energy
PIR sensor for presence-based energy saving.
Built-in temperature and humidity sensor
Built-in temperature and humidity sensor.
8 working plans
8 working plans, manual or automatic.
Child lock and anti-theft installation
Child lock and anti-theft installation.
Multicast
Multicast, FUOTA, BMS via Milesight gateways.
Technical data
WT401 specifications
| Specifications | |
|---|---|
| Technology | LoRaWAN® |
| Antenna | Internal antenna |
| Frequency | IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 |
| Tx Power | 16 dBm (868 MHz) / 22 dBm (915 MHz) |
| Sensitivity | −137 dBm |
| Mode | OTAA/ABP Class A / Class C |
| Specifications | |
| Compatibility | Most HVAC systems via LoRaWAN®; PTAC (2H/1C), boilers, furnaces or heat pumps (2H/1C) via Milesight UC7111 HVAC controllers; radiators via Milesight WT101/WT102 thermostats |
| Temperature Control Mode | Heat, EM (emergency) heat, cool, auto |
| Fan Mode | Low, medium, high, auto, on, circulate |
| Advanced Feature | Local control schedule |
| Specifications | |
| Temperature Range | −20 °C ~ 60 °C |
| Temperature Accuracy | Typical ± 0.2 °C, maximum ± 0.5 °C |
| Humidity Range | 0% ~ 100% RH |
| Humidity Accuracy | Typical ± 2% RH, maximum ± 5% RH |
| PIR Detection | 120° horizontal, 90° vertical; max. 6 m |
| Operating Principle | Digital CMOSens® technology (MEMS) |
| Specifications | |
| Display | 2.7-inch black & white e-ink screen |
| Buttons | 5 buttons: power on/off, reset, system on/off, temperature up/down, mode switch, fan mode |
| LED Indicator | 1 × power / reset indicator |
| USB | 1 × Type-C for power supply or console |
| Power Connector | 1 × 2-pin power terminal connector (PowerBus) |
| Specifications | |
| Configuration | Mobile app via NFC or Bluetooth® 5.0, downlink |
| Advanced Feature | Occupied detection, smart display, child lock, button customisation, external sensor mode, multicast, FUOTA |
| Specifications | |
| Power Supply | 2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries; AC/DC 24V via power connector; DC 5V via Type-C; PowerBus (DC 24V) via Milesight HVAC controller (not simultaneous) |
| Battery Life | Class A up to 5.2 years (SF7, EU868); Class C around 25 days (10 min report interval) |
| Operating Temperature | −20 °C ~ 60 °C (e-ink screen: 0 °C ~ 40 °C) |
| Relative Humidity | 0% ~ 95% (non-condensing) |
| Ingress Protection | IP30 |
| Material & Colour | PC + ABS (UL94 V0), white |
| Dimensions | 86 × 86 × 24 mm |
| Installation | Wall screw mounting; 86 mm square or European 60 mm round box; 118/120 wall box via wall-plate accessories |
No specification rows match the filter.
Applications
WT401 applications
Hospitality
Hotels use the WT401 for wireless guest-room climate control, with PIR presence detection cutting energy use in unoccupied rooms and child lock protecting settings.
Commercial Buildings
Offices and stores control HVAC via Milesight controllers and BMS integration, with the e-ink display giving clear room status at a glance.
Radiator Retrofit
Paired with WT101/WT102 thermostats, the WT401 acts as a central wall control for radiator heating without rewiring.
Energy Management
Presence-aware control plus temperature and humidity sensing reduce energy consumption, and LoRaWAN backhaul feeds data into energy-management platforms.
Questions
WT401 questions and answers
How is the WT401 powered?
2 × 2700 mAh ER14505 Li-SOCl2, according to the specification.
What ingress protection does the WT401 have?
IP30, according to the specification.
What is the operating temperature of the WT401?
–20 … +60 °C, according to the specification.
What lorawan does the WT401 provide?
IN865/RU864/EU868/US915/AU915/, according to the specification.
Request a quote
WT401 price and lead time
Tell us the quantity and the delivery country. We reply within one working day with the price, stock at the nearest warehouse and the dispatch date.
European headquarters+370 655 51654[email protected]
United Kingdom branch+44 7425 726932[email protected]
- Company code306755852
- VAT numberLT100017217417
- Official distributor
- 17+ years in IoT
- Installation support
Manufacturer warranty24 months
