Milesight WT304 - Smart Fan Coil Thermostat
LoRaWAN®, 2.7" E-ink Display, 0-10V Valve Control, Temperature & Humidity Monitoring
The Milesight WT304 is an advanced LoRaWAN®-enabled room thermostat designed to control fan and valve operations in air conditioning systems using 2-pipe or 4-pipe fan coil units (FCUs). This intelligent thermostat provides both manual button control and automatic operation through predefined logic, scheduled programming, or remote management systems, ensuring optimal comfort and energy efficiency in commercial and residential environments.
Featuring a 2.7-inch e-ink display, the WT304 continuously shows room temperature, humidity, and system status while its embedded sensors monitor ambient conditions in real-time. The thermostat is compatible with standard LoRaWAN® gateways and integrates seamlessly with Milesight Development Platform for remote monitoring and management. With support for 0-10V proportional integral valves alongside traditional On/Off motorized valves, the WT304 offers precise temperature control and enhanced energy efficiency.
The WT304 supports multiple data sources for environmental detection, including built-in sensors, external NTC sensors, Milesight sensors, and external sensor data from network servers. This flexibility ensures accurate temperature control tailored to specific room requirements and installation scenarios.
Key Features
- Advanced Valve & Fan Control
- 0-10V proportional valve control for precise temperature regulation
- Supports 2-pipe and 4-pipe FCU systems with 3-speed or ECM fans
- Compatible with On/Off motorized valves (2-wire and 3-wire)
- LoRaWAN® Wireless Control
- Remote monitoring and control via standard LoRaWAN® gateways
- Milesight D2D protocol for ultra-low latency local control
- FUOTA support and multicast for bulk operations
- Intelligent Scheduling & Energy Saving
- 8 programmable plans with up to 16 schedules each
- Open-window detection and freeze protection
- Automatic temperature control and dehumidify functions
- User-Friendly Interface
- 2.7-inch e-ink display with temperature, humidity, and status information
- Dry contact input for keycard or magnet switches
- External NTC sensor input and child lock function
Typical Applications
- Hospitality
- Hotel rooms with keycard integration
- Conference rooms and meeting spaces
- Commercial Buildings
- Office buildings and workspace management
- Retail stores and shopping centers
- Residential
- Smart apartments and condominiums
- Multi-unit residential buildings
Technical Specifications
| Specification |
Value |
| Compatible Systems |
2-pipe and 4-pipe FCUs with 3-speed or EC fans |
| Valve Control |
0-10V Proportional, 2-wire/3-wire On/Off |
| Temperature Control Range |
5°C to 35°C |
| Temperature Accuracy |
± 0.5°C (0°C to 60°C) |
| Display |
2.7-inch Black & White E-ink |
| Wireless Protocol |
LoRaWAN® (EU868), Milesight D2D |
| Power Supply |
100 to 240 VAC, 50 to 60 Hz |
| Operating Temperature |
-20°C to 60°C |
| Dimensions |
86 × 86 × 42 mm |
Additional Features
- Open-window detection and freeze protection for energy savings
- NFC configuration via mobile app or downlink
- Compatible with BACnet systems via Milesight LoRaWAN® gateways
- External NTC sensor input and keycard/magnet switch support
Certifications & Standards
- LoRaWAN® certified
- IP20 ingress protection