WT304-868M
Description
WT304 is an advanced room thermostat specifically developed to oversee fan and valve operations in air conditioner applications where 2-pipe or 4-pipe fan coil unit (FCU) with 3-speed fan or ECM fan is adopted. It allows manual control by buttons, and automatic control through predefined logic, scheduled programming or remote management system. This ensures optimal comfort and energy efficiency in the controlled environment. With 2.7’ e-ink screen and embedded temperature and humidity sensor, the thermostat continuously displays the room status while monitoring the ambient temperature and humidity. It is compatible with standard LoRaWAN® gateway and Milesight Development Platform, enabling real-time monitoring of environmental status for effective remote management.
Features
- Applicable for 2-pipe and 4-pipe FCUs with 3-Speed fans or ECM fans
- Compatible with 2-wire On/Off relay, 3-wire On/Off relay or 0-10V valve control
- Supports intuitive 2.7-inch display, allowing for showing temperature/humidity and status of the room clearly
- Equipped with an external NTC sensor signal input and a dry contact input for key card/magnet switches
- Highly adapt to different scenarios with 60mm/86mm/118mm/120mm boxes
- Adjust the room temperature manually or automatically
- Optional data sources for environmental detection and accurate control: built-in temperature and humidity
- sensors, external NTC sensor, Milesight sensors, external sensor data from network servers
- Supports adding 8 plans and allow up to 16 schedules for each plan, ensuring various control needs and energy savings
- Supports open-window detection and freeze protection
- Supports the child lock function for safety reasons
- Function well with standard LoRaWAN® gateways and network servers
- Compatible with BACnet system via Milesight LoRaWAN® gateways
- Compatible with Milesight Development Platform
- Supports Milesight D2D protocol to enable ultra-low latency control without gateway
- Supports multicast for control in bulk
- Support Firmware Update Over the Air (FUOTA) feature
Technical Specifications
| Thermostat Feature | |
|---|---|
| Compatible Fan Coil | 2-pipe and 4-pipe Fan Coil Units (FCUs) with 1-3-speed fans or EC (0-10V) fans For more see Compatibility Checker. |
| Compatible Valve | 0-10V Proportional Integral Valves, 2-wire or 3-wire On/Off Motorized Valves |
| Relay Amps | Resistance: 4A, Inductive: 3A |
| Temperature Control Range | 5°C ~ 35°C |
| Temperature Control Mode | Heat, Cool, Ventilation |
| Fan Mode | Low, Medium, High, Auto |
| Others | |
| Inputs | 1 × 10k ± 1% 3950 NTC Input, 1 × DI (Dry Contact) for keycard switches, magnet switches, etc. (only for physical switches or buttons) |
| Advanced Feature | Local Control Schedule, Freeze Protection, Open Window Detection, Fan Delay, Temp. Control and Dehumidify |
| Sensor | |
| Temperature | |
| Operating Principle | Digital CMOSens® technology (MEMS) |
| Range | -20°C ~ 60°C |
| Accuracy | ± 0.5°C (0°C ~ 60°C), ± 1°C (-20°C ~ 0°C) |
| Resolution | 0.1°C |
| Humidity | |
| Operating Principle | Digital CMOSens® technology (MEMS) |
| Range | 0% - 100% RH |
| Accuracy | Typical ± 2% RH, Max. ± 5% RH |
| Resolution | 0.1% RH |
| Wireless Transmission | |
| Protocol | LoRaWAN®, Milesight D2D |
| Antenna | Internal Antennas |
| Frequency | CN470/EU868/RU864/1N865/AU915/US915/KR920/A5923-1&2&3&4 |
| Tx Power | 16dBm (868 MHz) / 19dBm (470 MHz) / 22dBm (915 MHz) |
| Sensitivity | -137dBm |
| Mode | OTAA/ABP Class C |
| Others | |
| Display | 2.7-inch Black & White E-ink Screen |
| Button | 5 External Buttons for FCU System On/Off, Temperature Up/Down, Temperature Control Mode Switch, Fan Mode Switch, Reboot and Reset |
| LED Indicator | 1 x Reset/Reboot Indicator |
| USB | 1 x Type-C Port for Console |
| Software | |
| Configuration | NFC via mobile App or Downlink |
| Advanced Feature | Threshold Alarm, Child Lock, Multicast, Milesight D2D Controller, Milesight D2D Agent, External Sensor Mode, Milesight D2D Sensor Data Receiving, FUOTA |
| Physical Characteristics | |
| Power Supply | 100 ~ 240 VAC, 50 ~ 60Hz |
| Operating Temperature | -20°C ~ 60°C (E-ink Screen: 0°C ~ 40°C) |
| Relative Humidity | 0 ~ 95% (Non-condensing) |
| Ingress Protection | IP20 |
| Colour & Material | White, PC + ABS (UL94 V0) |
| Dimension | 86 × 86 × 42 mm |
| Wire Connection | AWG 14-26 |
| Installation | 86mm Square or European 60mm Round Box Mounting 118 or 120 Wall Box Mounting via (optional) Wall Plate Accessories |
Delivery & Support
Delivery Information
For UK clients, we deliver all goods ordered by 14:00 on the next working day.
Support
If you have any questions about this product or need guidance choosing the right solution, our technical sales team is here to help. You can also explore detailed resources on our downloads site.
Delivery times
For uk clients we deliver all goods ordered by 14:00 in the next working day.