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WT304-868MDescription 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

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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.

WT304-868M

Name: WT304-868M
Brand: terrelite.it
SKU: 62088620154
Price: 110.00 USD
Availability: InStock
Rating: 4.8298000000000005 (2114 reviews)