Serin Link

Comfort within reach, in a palm-sized design. Serin Link fits neatly beside your bed or on a busy desk, leaving room for everything else. Its bright 1.5-inch AMOLED touchscreen and rotary dial keep everyday controls close at hand. Turn to adjust the temperature, tap to choose a mode, and see your room’s conditions at a glance.

Link communicates directly with your Serin Controller. Everyday control works without home Wi-Fi, an account, or a cloud connection.

• Turn, tap, or swipe. Adjust temperature and access the modes, fan speeds, and vane controls supported by your system.
• Control up to seven zones. Switch between rooms from one Link. Each zone needs a compatible controller.
• Built-in temperature and humidity sensor. View conditions where you place Link. On supported controllers, you can select Link as the temperature source for room control.
• A small footprint. The compact desktop stand is 3D-printed in PLA, with a non-slip silicone base. 
• Works with ESPHome, too. Bring physical controls to a compatible ESPHome climate entity using the open-source Serin Link component and packages in serin-link-core. Your setup doesn’t have to use a Mitsubishi heat pump. ESPHome configuration is required, and available controls depend on your climate integration.
• Open-source firmware. Supports firmware updates and USB recovery.

Ready to power on and pair

Your assembled Link arrives with firmware installed. The box includes:

• Serin Link in your selected color
• 20 W USB-C wall charger
• 3-foot USB-C-to-USB-C cable
• Printed quick-start instructions

What you’ll need

A Serin Controller running compatible firmware, or an ESPHome device configured with the Serin Link component and a compatible climate entity.

Link does not connect directly to your heat pump. A Controller is sold separately unless you choose the bundle.

Details

• Dimensions: 2.4 × 2.6 × 2.2 inches (60 × 65 × 55 mm), width × height × depth
• Link weight: 3 oz
• USB-C powered; no battery
• Indoor desktop use
• One-year limited hardware warranty and 30-day returns, subject to store policies