SEA889-LoRa

Private LoRa TRV with Open UART Interface

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Private LoRa Protocol – Secure point-to-point Sub-GHz connectivity.

Open UART Interface – Full serial command set for easy integration.

868MHz/915MHz Support – Region-specific frequencies for global use.

M30 x 1.5 Standard – Universal fit for professional radiator valves.

3-Year Battery Life – Optimized ultra-low power consumption logic.

Data Sovereignty – Total local control without 3rd-party clouds.

Front view of Private Protocol LoRa Radiator Thermostat with high-contrast LED display for temperature monitoring.

Top view of the secure LoRa thermostat featuring an integrated LED display and intuitive rotary knob interface.

Home Product Residential Valves and Actuator Smart radiator thermostats (TRV)

Product Description

This industrial-grade Sub-GHz LoRa Radiator Thermostat is a robust terminal designed for professional HVAC integration. Featuring an open UART interface and a private protocol, it allows system integrators to execute direct serial commands without 3rd-party cloud dependency. Optimized for local network autonomy, this non-WiFi TRV ensures high-penetration bi-directional communication (868MHz/915MHz) in complex building infrastructures, providing brand partners with total data sovereignty for large-scale energy management.

Key Functions

Protocol Access | Open Hardware Protocol

Full access to UART/TTL command sets for deep firmware integration and status feedback.
Universal Fit | Professional Valve Standard

Standard M30x1.5 thread with adapters for Danfoss (RA/RAV/RAVL), Caleffi, and Giacomini.
Signal Range | Exceptional Coverage

Utilizes Sub-GHz technology (868/915MHz) to bypass interference and penetrate thick walls.

Offline Logic | Data Sovereignty & Safety

Executes local schedules independently; heating data stays within your private infrastructure.
Certified Quality | International Compliance

Strictly follows CE (Europe) and FCC (North America) wireless standards for global deployment.
Auto-Maintenance | Intelligent Anti-Scaling

Built-in algorithm exercises the valve weekly during non-heating seasons to prevent seizure.

Product Parameters

Power source: 4x1.5V alkaline AA batteries(LR6)(Don't use the rechargeable battery)

Temperature setting accuracy: 0.5°C

Temperature display range: 0°C~50°C

Setting temperature range: 5°C~30°C

Shipping & storage temperature: -10°C~60°C

Network frequency: 2.4 G WIFI

Display screen:LED

IP class: IP21

Connection: M30x1.5mm

Low power consumption

Tips:
Low power consumption recommendations
We suggest to turn on Energy-saving mode to extend battery life.

Adapter option

A variety of adapter accessories available, compatible with 99% of radiators on the market.

Product Application Scenarios

A reliable non-WiFi solution for commercial buildings, healthcare facilities, and specialized HVAC infrastructure. It is the preferred choice for integrators requiring a private wireless link to manage multiple heating zones across complex environments where standard Zigbee or Wi-Fi signals fail to penetrate.

Residential

Apartment

Partnership & OEM/ODM Support

We provide agile OEM/ODM services to help brand partners launch professional heating solutions with rapid time-to-market.

Deep Customization

Support for Logo silk-printing, custom housing colors/materials, and specialized temperature logic.
R&D Onboarding

Direct access to engineers for UART protocol debugging with 72-hour response times.
Global QA & Warranty

Reliable supply chain for B2B projects. Sample lead time: 7-10 working days; Mass production: 20-30 working days.

FAQ

You could choose the types you like, and then sent the model no. to the email box info@saswell.com. Our salesman will get in touch with you within 24 hours. And we will send the data sheet to you for double check. Then we will prepare the sample accordingly. The sample needs to charge. So we will calculate the fare by emails back the proforma invoice for your reference. Then we will express the sample to you by express, you could get the sample about 4-5 days later.

We provide comprehensive UART/TTL communication protocol documentation. Your R&D team can access the full command set to execute valve positioning, temperature scheduling, and real-time feedback. We also offer direct technical consultation to assist with your protocol debugging and system onboarding.

By utilizing Sub-GHz LoRa technology (868MHz/915MHz), the signal penetration is significantly superior to Zigbee or Wi-Fi. In typical commercial infrastructures, it can reliably penetrate 3 to 5 thick walls or floors, making it the ideal non-WiFi solution for large-scale hotels and office buildings.

Yes. We support region-specific frequencies including 868MHz (Europe) and 915MHz (North America). As a professional hardware provider, we ensure the hardware is optimized for local wireless regulations to support your global project deployments.

Absolutely. The device features a standard M30 x 1.5 threaded connection, which is the universal standard for professional radiator valves globally. We also provide various adapters for specialized valve types used in different regions.