EW1 series 86 full-screen thermostat main product photo white background

EW1 white pearl 86 full-screen thermostat white background

EW1 Full-Screen Thermostat | 86 | Wi-Fi / Local

EW1 86 full-screen touch thermostat for hydronic/UFH thermal actuators. Standard local or Tuya Wi-Fi models in Black (Matte) / White (Pearl). AC 110–240V~, 3A load, IP20, 86 wall box.

● Product type: 86 Full-Screen Thermostat
● Series: EW1
● Functions: Digital touch temperature control for hydronic / UFH thermal actuators
● Versions: Standard (local) / Tuya Wi-Fi 2.4GHz smart
● App (Wi-Fi models): Tuya Smart / Smart Life
● Power supply: AC 110–240V~
● Rated load: 3A @ 250VAC / 3A @ 30VDC
● Color options: Black (Matte) / White (Pearl)
● Installation: Standard 86 wall box
● IP rating: IP20
● Operating temperature: -5℃ to +40℃

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Product Profile

EW1 Series 86 Full-Screen Thermostat is an indoor wall-mounted digital thermostat with a full-screen touch interface and standard 86 wall box installation. It is designed for hydronic heating applications, especially underfloor heating (UFH) manifold thermal actuators, providing stable room temperature control for residential and light commercial projects. The series includes standard local-control models and Tuya Wi-Fi smart models (2.4GHz) for remote control via Tuya Smart / Smart Life.

Key Features

86 standard wall box installation for easy fit and replacement
Wide power supply range: AC 110–240V~
Full-screen touch interface with clear display and intuitive operation
Indoor protection rating IP20
Tuya Smart / Smart Life app control on Wi-Fi models
Color options: Black (Matte) / White (Pearl)
Suitable for UFH manifold thermal actuator and hydronic heating room control

Model Preparation Meaning

EW1 series model naming follows the catalog order codes below.

EW1 — Series code (86 full-screen thermostat)
Q1 — Product family sequence
001 — Digital touch thermostat, Standard, Black (Matte)
002 — Tuya Wi-Fi smart thermostat, Wi-Fi 2.4GHz, Black (Matte)
003 — Digital touch thermostat, Standard, White (Pearl)
004 — Tuya Wi-Fi smart thermostat, Wi-Fi 2.4GHz, White (Pearl)

Order models: EW1Q1001, EW1Q1002, EW1Q1003, EW1Q1004.

Technical Data

Power supply	AC 110–240V~
Controlled load	Thermal actuator (UFH manifold)
Rated load	3A @ 250VAC / 3A @ 30VDC
Wireless communication (Wi-Fi models)	Wi-Fi 2.4GHz (Tuya Smart / Smart Life)
Protection rating	IP20
Max. wire size	1×1.5mm²
Color options	Black (Matte) / White (Pearl)
Operating temperature	-5℃ to +40℃
Installation	Standard 86 wall box

Settings & adjustable parameters

No.	Setting	Options / Range	Default
01	Temperature calibration	-9℃ to 9℃	-2℃
02	Temperature differential (deadband)	0℃ to 5℃	1℃
03	Sensor selection	IN: Built-in sensor; OU: External sensor	IN
04	Minimum temperature limit	5℃ to 15℃	5℃
05	Maximum temperature limit	15℃ to 45℃	35℃
06	Temperature display mode	00: Room temperature display; 01: Set temperature display	01
07	Backlight brightness	0 to 4	2
08	Cooling mode	0: OFF / 1: ON	0
09	Standby display	0: Full display; 1: Display only temperature, heating status and power button	1
10	Display in power-off state	0: Display room temperature after power-off; 1: Display power button only after power-off; 2: Display off completely after power-off	1
11	Factory reset	0: No; 1: Restore factory settings at startup	0

APP configurable parameters (Wi-Fi models): 01, 02, 03, 04, 05 and 07.

Model selection

Model	Product name	Version	Color
EW1Q1001	Digital touch thermostat	Standard	Black (Matte)
EW1Q1002	Tuya Wi-Fi smart thermostat	Wi-Fi 2.4GHz	Black (Matte)
EW1Q1003	Digital touch thermostat	Standard	White (Pearl)
EW1Q1004	Tuya Wi-Fi smart thermostat	Wi-Fi 2.4GHz	White (Pearl)