Milesight | SKU: WT304-868M

Milesight WT304 | LoRaWAN Fan Coil Thermostat (0-10V & On/Off Valve)

€106,00

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The Milesight WT304 is a LoRaWAN fan coil thermostat for 2- and 4-pipe FCUs with a clear e-ink display.

FCU control: 2- or 4-pipe units with 3-speed or EC (0-10V) fans.
0-10V proportional + On/Off valves for precise modulation.
Smart & connected: LoRaWAN, Milesight D2D, BACnet, schedules and e-ink display.

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Description

The Milesight WT304 is an advanced LoRaWAN fan coil thermostat for air-conditioning systems using 2-pipe or 4-pipe fan coil units (FCUs) with 3-speed or EC (0-10V) fans. It drives 0-10V proportional-integral valves as well as 2-wire or 3-wire On/Off motorized valves. It supports manual button control and automatic control via predefined logic, schedules or remote management for optimal comfort and energy efficiency.

A 2.7-inch e-ink display and a built-in temperature/humidity sensor continuously show room status, and it integrates with standard LoRaWAN gateways, BACnet (via Milesight gateways), Milesight D2D and the Development Platform for real-time monitoring and remote management.

Key Features

2-/4-Pipe FCU ControlDrives 2-pipe and 4-pipe fan coil units with 3-speed fans or EC (0-10V) fans for flexible HVAC control.

Valve ControlDrives 0-10V proportional-integral valves for modulating control, plus 2-wire/3-wire On/Off valves.

2.7-Inch E-Ink DisplayA crisp, low-power e-ink screen shows room temperature, humidity and system status clearly.

Connected & FlexibleLoRaWAN and Milesight D2D, BACnet via Milesight gateways, multicast, FUOTA; 8 plans with up to 16 schedules each.

Typical Applications

•Hotels & offices: per-room FCU control with key-card input and central management.

•Commercial buildings: scheduled heating/cooling and ventilation for comfort and energy savings.

•BMS integration: bring FCU zones into BACnet building-management systems via Milesight gateways.

Technical Integration

•FCU compatibility: 2-pipe and 4-pipe FCUs with 3-speed fans or EC (0-10V) fans

•Valve control: 0-10V proportional-integral valves, plus 2-wire or 3-wire On/Off motorized valves

•Relays: Valve & fan relays: 4 A resistive, 3 A inductive (capacitive loads not supported)

•Control: Heat, Cool, Ventilation; fan Low/Medium/High/Auto; temperature range 5-35 °C; 8 plans, up to 16 schedules each

•Inputs & sensing: Built-in temp (±0.5 °C) & humidity (±2% RH) sensor; 1 x 10k NTC input; 1 x DI (dry contact); external sensor mode

•Connectivity: LoRaWAN (EU868, OTAA/ABP Class C) & Milesight D2D; internal antenna; BACnet via Milesight gateways; multicast; FUOTA

•Display & build: 2.7-inch e-ink; 5 buttons; PC+ABS (UL94 V0); IP20; operating -20 to 60 °C

•Power & mounting: 100-240 VAC, 50/60 Hz; < 2 W (no loads); fits 86/60/118/120 mm boxes; AWG 14-26 wiring

•Setup help: For FCU wiring or BACnet integration, contact the shopioT technical team

What's in the Box

1×Smart Fan Coil Thermostat

2×Wall Mounting Screws (M4x25)

1×2-Pin Signal Cable

1×Anti-Theft Fixing Screw (M2x4)

1×Quick Guide

1×Warranty Card

Optional accessories: external NTC temperature sensor and wall plate kit (sold separately).

Frequently Asked Questions

Which FCUs does it support?

2-pipe and 4-pipe fan coil units with 3-speed fans or EC (0-10V) fans.

What valves can it drive?

0-10V proportional-integral valves, plus 2-wire or 3-wire On/Off motorized valves.

Can it integrate with a BMS?

Yes - via BACnet through Milesight LoRaWAN gateways, plus Milesight D2D, multicast and the Development Platform.

How is it powered and mounted?

100-240 VAC mains, in an 86/60/118/120 mm wall box (wall plate optional).

Controlling Fan Coil Units?

Talk To Our IoT Team Browse HVAC Control Shop Milesight

Specifications

Primary Communication Protocol

LoRaWAN, Milesight D2D
Frequency/Region

EU868
Antenna Type

Internal
Configuration Method

NFC, Downlink
Activation Method

OTAA, ABP
Environment Rating

Indoor
IP Rating

IP20
Operating Temperature

-20°C to 60°C
Enclosure Material

ABS+PC
Power Consumption

< 2 W (without loads)
Measurement Technology

A built-in digital MEMS temperature and humidity sensor monitors room conditions, while the thermostat controls the fan coil unit's fan speed and modulating (0-10V) or on/off valve for precise heating, cooling and ventilation.
Measurement Range
- Temperature: -20 to 60 degrees C
- Humidity: 0 to 100% RH
- Temperature control range: 5 to 35 degrees C
Measurement Accuracy
- Temperature: +/-0.5 C (0-60 C), +/-1 C (-20-0 C)
- Humidity: typ. +/-2% RH (max +/-5%)
Measurement Resolution
- Temperature: 0.1 C
- Humidity: 0.1% RH
Interfaces (I/O)

Digital Input (Dry Contact), Dry Contact Relay (SPST NO), Analog Output (0-10V), USB Type-C, Button
Monitoring Parameters

Temperature, Humidity