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Description
WT303-868MDescription WT303 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
Description
WT303 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 an 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 a 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 For more, see Compatibility Checker. |
| Compatible Valve | 2-wire or 3-wire On/Off Motorised 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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Very protective iPad case
Color: 1-Navy Blue
This MoKo iPad case is excellent! It fits perfectly and provides great protection without adding bulk. The navy blue color looks very sleek, and the translucent back shell is a nice touch. It’s super magnetic, with great padding. The smart cover works flawlessly with the auto wake/sleep feature, and the cutouts line up perfectly for Touch ID. Lightweight, durable, and a fantastic value!
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Fits the new iPads. Buttons are easily accessible.
Color: 1-Navy Blue
Fits the new iPad. Buttons are easy to reach, and it protects the screen with a soft fell back. Easy white clean vinyl on the outside. It has open vent spots so your device can cool. Slim and sleek. A great value for the money. Buttons are easily accessible. High-quality.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Perfect, it fits like a glove.
Color: 1-Navy Blue
I really liked the sleeve, the navy blue color looks very elegant and the material feels resistant but soft to the touch. What I like the most is that the back is translucent, so you still see the design of the tablet.
It works great for watching videos because it stands firm when folding it, and turning off the screen alone when closing it is very practical. Because of the price it has, the quality is excellent.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Great Protective Case for My Mother’s iPad
Color: 2-Watermelon Red, Color: 2-Watermelon Red
I bought this case along with my mother’s new iPad, and it was the perfect choice. The watermelon red color looks beautiful with the pink iPad and gives it a very clean and stylish look. The case feels sturdy without adding too much weight, which makes it comfortable for her to carry around and use every day.
The stand feature works really well for watching videos, reading, and video calls. I also like that the case supports the auto wake and sleep function, which makes the iPad feel even more convenient and easy to use. The cutouts fit perfectly, and Touch ID still works without any issues.
The translucent back is a nice touch because it still lets the iPad color show through while keeping it protected from scratches and bumps. Overall, this case exceeded expectations and makes a great addition for anyone wanting both protection and style for their iPad.
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Reviewed in the United States on May 14, 2026
★★★★★ 4
Good product. What you see is what you get.
Color: 1-Navy Blue
Material feels sturdy and was a perfect fit compatible for my iPad. There's adequate grip and padding for a comfortable yet slim feel. Magnets hold it close and in one position when propping it up for watching landscape videos. Back is translucent as advertised. Solid product, put it on as i opened my new ipad for immediate protection. Perfectly safe blind buy if you're also getting that 'frequently bought together' suggestion from Amazon.
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Reviewed in the United States on June 1, 2026