Answers to the most common questions and guides for our products.
The DS18B20 has ±0.5°C accuracy in the range −10°C to +85°C. In calibrated installations it can reach ±0.1°C.
The 1-Wire protocol supports up to 5 sensors on the same bus, as long as the cable length does not exceed 30m.
We recommend LIYCY cable and soldering at connections. For short distances, UTP or alarm cable is sufficient.
Yes. With the SHH-R4 controller connected to Home Assistant or an MQTT broker, you have full control via smartphone from anywhere.
The system continues to operate autonomously based on the programmed schedule. Remote control is automatically restored when the network returns.
In most cases yes. We use a relay output that replaces the existing thermostat on the same wiring. Contact us so we can assess your installation.
We install Home Assistant OS on refurbished thin clients (Dell Wyse, HP t620) that consume 8–15W. Alternatively, on Raspberry Pi 4/5 or mini PC.
Home Assistant is free and open source. There is an optional Home Assistant Cloud (Nabu Casa) subscription for easy remote access, but it is not required.
Zigbee, Z-Wave, WiFi (MQTT/Tasmota/ESPHome), Modbus RTU/TCP, 1-Wire, KNX and RS-485 serial protocols. In each installation we choose the most suitable one.
On-site installation where feasible. In other areas we ship pre-configured devices with an installation guide and phone support from a qualified external partner.
2-year warranty on all our manufactured devices. For third-party products the manufacturer's warranty applies (usually 1–2 years).
A typical installation (1–3 sensors + controller + Home Assistant) is completed in 2–4 hours. More complex systems may require 1–2 days.
Step-by-step 1-Wire bus connection with example code.
Installation, configuration and your first automation.
Protocol comparison to help you choose the right one.
Connecting a 3-phase meter via RS-485 to Home Assistant.