SAS965WHL 4-Inch Color Touchscreen Smart Hydronic Thermostat

Key Functions

Deliver Premium Experience – 4-inch Color Touchscreen

Accelerate Product Launch – 7-Day UI Customization

Speed Up Installation – Tool-Free Snap-Fit

Enable Remote Maintenance – OTA Updates

Cut Energy Waste – 7-Day Programming

Support Multi-Zone Projects – 8-Zone Control

Product Overview

SAS965WHL 4-inch Color Touchscreen Smart Hydronic Thermostat features a 4-inch high-definition color touchscreen with 7-day UI graphic customization. Part of the WHL Series Hydronic Thermostats, it supports Tuya IoT control and cloud OTA updates to eliminate on-site service calls. Anti-freeze and boiler interlock come standard. Paired with SCU209, it manages up to 8 independent heating zones.

Product Features


Product Selector

Model No. Heat/cool Heat only Pipe Speed fan Programmable Window card Room card External Sensor Modbus RTU WIFI Power Manual
SAS965WHL-7-WIFI(TY)





220VAC download

Product Parameters

Power source: AC100~240V,50/60Hz

Current temperature display range: 0℃~50℃

Floor temperature display range: 0℃~70℃ (NTC external sensor measuring range)

Current temperature setting range: 5℃~70℃

External sensor control range/Floor temperature protection range: 5℃~70℃

Accuracy: 0.1℃

External sensor: NTC 10K / NTC 100K

Storage temperature range: -20℃~70℃; 5~95% (no condensation)

Network frequency: 2.4GHz WIFI

Screen: 4-inch IPS screen, capacitive touch screen (71.86* 67.96mm, 480*480)

Dimensions: 86x86x12mm

IP Rating: IP21


Product Dimensions

SAS965WHL product dimensions outline drawing

Product Installation

SAS965WHL wall mounting installation steps diagram

Product Application Scenarios

The SAS965WHL thermostat is ideal for villas, apartments, hotels, smart homes, green buildings, and retrofit projects. Its 8-zone independent control, 7-day programming, OTA updates, and universal backplate (EU flush-mount / UK-CN 86mm) make it a versatile solution for any hydronic underfloor heating installation.
hydronic thermostat in luxury villa living room
Villas
hydronic thermostat in modern apartment living room
Apartments
hydronic thermostat in hotel guest room
Hotel

B2B Partnership Services

SASWELL provides comprehensive B2B support to help global partners accelerate market entry and reduce project risks. From UI customization and OTA readiness to technical assistance and after‑sales service, we align our capabilities with your business needs.

FAQ

How long does UI customization take?

Typically 7 days from design confirmation to delivery of branded samples. No hardware changes are required - only the interface is replaced with your brand colors, logo, and layout.

Does the thermostat work without WiFi?

Yes, all basic functions (temperature setting, manual operation, weekly schedule) work offline. WiFi is only needed for remote control via app and OTA updates.

What is OTA and why does it matter?

OTA (Over-The-Air) allows remote firmware updates and cloud diagnostics without disassembly or on-site service calls. This reduces warranty expenses and keeps your product competitive over its entire lifecycle.

What is the maximum number of zones?

Up to 8 independent zones when paired with the SCU209 wiring center.

Is the temperature sensor calibration possible?

Yes, temperature calibration is available in the advanced settings menu (±5℃ range).
Get in Touch

Contact our friendly customer service team for any questions, concerns, or suggestions. We'd love to hear from you.


Headquarters Hotline: +86 755 61218391 Headquarters Hotline +86 755 61218391

Headquarters Email: info@saswell.com

MENA Tech Support Hotline: +97155 6743682

MENA Tech Support Email: support@saswell.com

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