Milesight^® WT201 LoRaWAN^® Smart Thermostat 

The Milesight^® WT201 is an advanced LoRaWAN^®‑based smart thermostat engineered to simplify HVAC control for residential and commercial spaces,  while maximizing energy efficiency through integration with optional external occupancy sensors.

In addition to manual and local scheduling control,  WT201  offers  remote management and seamless integration into modern Building Automation and Control Systems (BACS) via Milesight^® IoT cloud platforms and by leveraging low‑power, long‑range LoRaWAN^® wireless technology.  

Designed to support most 24v AC HVAC systems—including multiple heating/cooling stages and emergency heat—it features four control modes (Heat, Cool, Auto, Emergency Heat) and three fan modes (Auto, On, Circulate) for ultimate flexibility and comfort. 

What sets WT201 apart is its proprietary Milesight^® D2D and multicast control technology, enabling reliable, low-latency peer‑to‑peer communications between compatible Milesight^® devices without requiring a gateway. This allows intelligent, scene-based local controls for more efficient HVAC management. 
 
Add to that 64 local scheduling rules, freeze/temperature alerts, child‑lock, and anti‑theft protections, plus NFC /USB‑C configuration for simple setup. 

Compatible with hotel card systems and integrated with BACnet, MQTT, HTTP, and Milesight^® IoT Cloud platforms, the WT201 supports robust remote control and energy optimization across green building solutions.

Key Features:

• HVAC System Compatibility:

  • Works with most 24 VAC HVAC systems, including furnaces and air conditioners (2H/2C), heat pumps (4H/2C +1 stage AUX heat), boilers, and PTAC's

  • Offers 4 temperature control modes (Heat, Cool, Auto, Emergency Heat) and 3 fan modes (Auto, Circulate, On) 
    

• Operational Control:
  • Supports manual operation and scheduled programming up to 8 plans, each with up to 16 schedules, to meet diverse control needs and improve energy efficiency
  • Allows scene-based control via Milesight^® Device-to-Device (D2D) protocol for optimal efficiency *
  • Integrates with remote management systems
    
• Display & Sensors:
  • Equipped with a 2.7" E-ink display for real-time room status updates.
  • Built-in temperature and humidity sensors 
  • Supports external NTC sensor signal input and a dry contact input for keycard/magnetic switches
• Scalability & Data Management:
  • Scales effortlessly to support over 1,000 devices per site
  • Supports Cloud data collection & reporting
  • Flexible data sources for precise environmental monitoring and control (built-in sensors, Milesight^® wireless sensors, external NTC, or third-party sensor data via network servers)
• Connectivity & Integration:
  • Fully compatible with standard LoRaWAN^® gateways and the Milesight^® IoT Cloud Platform
  • Enables seamless real-time environmental monitoring and efficient remote management
  • Compatible with BACnet systems via Milesight^® LoRaWAN^® gateways
  • Supports Milesight^® D2D protocol for low-latency local controls without a gateway
  • Supports multicast control for efficient bulk device management
  • Supports Firmware Update Over-the-Air (FUOTA)
• Energy Saving & Safety:
  • Can be paired with Milesight^® light & motion sensor(s) via Milesight^® Device-to-Device (D2D) protocol for scene-based controls, enhancing energy savings when spaces are unoccupied
  • Open-window detection and freeze protection for smart energy management
  • Child lock function for enhanced safety
    
    

Specifications

 

Wireless Transmission
Technology	LoRaWAN®, Milesight® D2D
Frequency	915 MHz (U.S. & Canada)
Tx Power	22 dBm (915 MHz)
Mode	OTAA/ABP Class C
Thermostat Feature
Compatibility	Most 24v AC HVAC systems, including Furnaces and Air Conditioners (2H/2C), Heat Pumps (4H/2C + 1 stage AUX Heat), Boilers, and PTAC's
Temperature Control Modes	Heat, EM (Emergency) Heat, Cool, Auto
Fan Mode	Auto, On, Circulate
Digital Input	1 × Digital Input for 100-250v AC keycard switch
Advanced Features	Local Control Schedule; Threshold Alarm; Freeze Protection; Child Lock; Multicast; Milesight® D2D Controller; Milesight® D2D Agent; Data Storage; Data Retransmission;
Sensor - Temperature
Operating Principle	Digital CMOSens® technology (MEMS)
Range	-20°C ~ 60°C (-4°F ~ 140°F)
Accuracy	0.5°C (0°C ~ 60°C), ± 1°C (-20 ~ 0°C), or ± 0.9°F (32°F ~ 140°F), ± 1.8°F (-4 ~ 32°F)
Report Resolution	0.1 °C (0.1°F)
Sensor - Humidity
Operating Principle	Digital CMOSens® technology (MEMS)
Range	0% - 100% RH
Accuracy	± 3% RH (40-85%RH), ± 5% RH (0-40%RH, 85-100%RH)
Report Resolution	0.5% RH
Display & Configuration
Display	4.2-inch LCD Segment Code Screen with White Backlight
External Buttons	5 Buttons for System On/Off, Temperature Up/Down, Temperature Control Mode Switch, Fan Mode Switch and Reset
Configuration	NFC, Type-C USB or Downlink
Physical Characteristics
Power Supply	20 -30v AC, 24v AC Nominal
Operating Temperature	-20°C ~ 60°C (-4°F ~140°F)
Relative Humidity	0% to 95% (non-condensing)
Ingress Protection	IP30
Material & Color	White, PC +ABS (UL94 V0 Flame Retardancy)
Dimensions	113 × 110 × 21 mm ( 4.45 × 4.33 × 0.83 in)
Mounting Method	Wall Screws Mounting

* The D2D (Device-to-Device) protocol enables scene-based control among compatible Milesight^® devices. When paired with a PIR motion sensor (WS202), it supports energy-saving automation when spaces are unoccupied.