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Rapid customization helps customers consolidate and build market leadership.

The core advantage of our product innovation enables customers' systems to support more standards, achieve higher energy efficiency, provide a better user experience, and create a better overall cost for end users.

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Rapid customization helps customers consolidate and build market leadership.

CONTACT NOW

Rapid customization helps customers consolidate and build market leadership.

Product lifecycle support

We not only manufacture products, but also provide comprehensive validation and optimization support to our customers prior to market launch, shortening the time from concept to market and helping our customers gain a competitive advantage from the outset.

Prototype (or 3D model)

A critical starting point in product development. Although not suitable for functional testing, these low-cost, rapidly manufactured models are irreplaceable in early validation.
R&D Prototype

Full-featured prototype used to validate design assumptions, identify defects, and optimize solutions. Ensures that the final design meets the expected technical and performance specifications.
Formality testing

Simulate real-world usage environments and subject products to rigorous testing to ensure durability, safety, and compliance.

Main Functions

Appearance Customization

Adjust the appearance design, dimensions, materials, and color scheme according to the customer's brand image and application environment to ensure the aesthetic consistency of the product with the customer's overall solution.
Function Customization

Flexibly add or remove function modules, such as control logic, product combinations, and energy efficiency modes, on the basis of a mature platform to meet the needs of different scenarios.
Protocol Customization

Adjust the appearance design, dimensions, materials, and color scheme according to the customer's brand image and application environment to ensure the aesthetic consistency of the product with the customer's overall solution.
Appearance Customization

Adjust the appearance design, dimensions, materials, and color scheme according to the customer's brand image and application environment to ensure the aesthetic consistency of the product with the customer's overall solution.
Appearance Customization

Adjust the appearance design, dimensions, materials, and color scheme according to the customer's brand image and application environment to ensure the aesthetic consistency of the product with the customer's overall solution.
Appearance Customization

Adjust the appearance design, dimensions, materials, and color scheme according to the customer's brand image and application environment to ensure the aesthetic consistency of the product with the customer's overall solution.

Rapid customization helps customers consolidate and build market leadership.

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Wiring center with wireless communication

The wiring center operates in wireless connection with the wireless thermostats via RF 868MHz signals and give the open and close commands to the thermal actuator. The wiring center can connect with maximum 8 wireless thermostats and control up to 8 zone loops.

Precision Manufacturing

Relying on advanced equipment and strict processes, we ensure consistent quality.

Standardized factory

Uniform processes and management ensure that every batch of products maintains the same high standards and consistency.

Product Description

SAS927FCT is an energy-efficient thermostat with 2.8-inch display, supporting WiFi remote control, suitable for modern homes, hotels and office buildings, seamlessly integrating with smart HVAC systems.

Application Scenarios

Hospital

Office

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Product Selector

Model No.	Heat/cool	Heat only	Pipe	Speed fan	Programmable	Window card	Room card	External Sensor	Modbus RTU	WIFI	Manual
SAS936WCHB-7-DFZ+SCU217DE-485	√				√			√	√	√	download

FAQ

Yes. The SAS920XFCT is a universal controller designed to support both 2-pipe and 4-pipe fan coil unit (FCU) systems. It can be easily configured via the settings menu to match your specific system architecture.

System Principle

We offer three flexible and customizable solutions to help you easily meet the needs of different customer segments.

Product Selector

Model No.	Fan Control Type	Water Valve Control Type	Max Load Current	Recommended Application	Manual
SAS965PIT-EC	EC Fan (0-10V)	PI Proportional Valve (0-10V)	3A	High-End Precision: First choice for projects requiring EC fan stepless speed control + precise water temperature control (e.g., 5-star hotel rooms, Class A offices). Balances energy saving and high comfort.	download
SAS965FCT-EC	EC Fan (0-10V)	On/Off Valve (220VAC)	6A	EC Fan General: For energy-saving projects using EC fans but On/Off water valves (e.g., boutique hotels, high-end apartments). Needs stepless speed control but moderate water temperature precision.	download

Main Functions

15%–25%

Typical HVAC Energy Savings
15%–25%

Typical HVAC Energy Savings
15%–25%

Typical HVAC Energy Savings

Main Functions

15%–25%

Typical HVAC Energy Savings
15%–25%

Typical HVAC Energy Savings
15%–25%

Typical HVAC Energy Savings
15%–25%

Typical HVAC Energy Savings

Key Functions

App Remote Monitoring

Monitor and adjust temperature settings anytime, anywhere via the Tuya smart App on your smartphone or tablet.
Multi-Mode Compatibility

Supports Heating/Cooling, two-pipe systems, and is selectable for either FCU or DX terminal units.
Voice Interaction

Seamlessly integrate with smart speakers like Amazon Alexa and Google Assistant for hands-free temperature adjustments.

System Integration

Seamlessly integrate with smart speakers like Amazon Alexa and Google Assistant for hands-free temperature adjustments.
High-Accuracy Control (0.5°C)

Features 0.5°C accuracy and supports external sensor input for enhanced temperature sensing.
Permanent Settings Retention

Pre-heating, Boost mode (1-12 hours adjustable), Child Lock, and Mute mode for versatile use.

Partnership & OEM/ODM Support

We are not just a supplier; we are your strategic partner. SASWELL offers a complete, one-stop partnership solution, encompassing flexible OEM/ODM development, expert technical support for BMS integration, and reliable global after-sales service, fully empowering you to expand global markets with innovative and dependable HVAC automation products.

Bespoke Customization and Scale Production

We provide flexible OEM/ODM services to perfectly match your unique market demands. From hardware design, software features, to branding (Logo/App UI), our responsive design and engineering teams support everything from fast prototyping to large-scale mass production, ensuring your rapid market entry.
Expert Technical Support

Our team of HVAC automation experts provides full lifecycle support. This includes system integration consulting (especially for RS485/Modbus BMS connectivity), application guidance, and detailed technical documentation to ensure your projects move efficiently from planning to deployment.
Global After-Sales Service and Quality Assurance

SASWELL is committed to delivering exceptional quality backed by global support. We offer standard product quality warranties and have specialized teams to handle worldwide technical troubleshooting and component supply, ensuring your customers experience continuous and reliable climate control solutions.

Advantages

Core Advantages of Saswell Wireless RF Heating Retrofit Solution:

30-Minute Installation

6x faster than wired retrofits. From 3 hours down to 30 minutes per radiator.
50-70% Labor Savings

No wall chasing, no plastering, no painting. Cut electrician hours by more than half.
No Tenant Disruption

Tenants stay in place. Zero noise, zero dust, zero relocation costs.
One-to-Many Scalability

One transmitter controls up to 8 receivers. Ideal for open‑plan offices or corridors.
Long Battery Life

2×AAA batteries last 1-2 years. Low maintenance, no frequent replacements.
No Internet Required

868MHz RF works independently. No WiFi, no gateway, no cloud subscription.

Overview

Traditional wired retrofits are slow and expensive. Our wireless RF solution cuts labor cost by 50% and installs in 30 minutes – no wall chasing, no disruption.

Conventional retrofits need control wires – drilling, plastering, painting, and high electrician fees (€60‑120/h). Our 16A receiver connects directly to existing power behind the heater; the battery‑powered transmitter mounts anywhere. No new wires, no structural damage, no tenant relocation. Installation time drops from 3 hours to 30 minutes per unit.

Key Capabilities:

● No‑wire installation
● 16A high load (3500W)
● 868MHz RF through concrete walls
● Battery transmitter (2×AAA, 1‑2 years service life)
● One transmitter controls up to 8 receivers
● Fail-safe mechanism: signal loss = heating off automatically

Comparison: integrated VAV maintenance cost vs decoupled

FAQ

Is the SAS920XFCT compatible with both 2-pipe and 4-pipe HVAC systems?

Is the SAS920XFCT compatible with both 2-pipe and 4-pipe HVAC systems?

Product Selector

Advantages

Overview