BPVT-423 is an industrial device designed for continuous measurement of ambient temperature and relative humidity 🌬️.
The measured data are transmitted via the Modbus RTU protocol over the RS-485 interface, ensuring reliable integration into automation, SCADA, or PLC systems.

The device is intended for operation in non-aggressive gaseous environments, particularly in ventilation, air-conditioning, and process climate-control systems.

⚙️ Design Features

The BPVT-423 consists of:

• a mounting board enclosed in a hermetic IP65-rated housing;
• a built-in OLED display for parameter indication and configuration;
• temperature and humidity sensors connected via the 1-Wire bus;
• three control buttons for local configuration and operation.

The enclosure is made of a durable industrial-grade material, suitable for operation in harsh environments — including dust, high humidity, and temperature variations.

🔩 Functional Capabilities

✅ Temperature measurement in the range of –40 °C to +75 °C, with a typical accuracy of ±0.5 °C.
✅ Relative humidity measurement in the range of 0–100 % RH, with a typical accuracy of ±2.0 % RH.
✅ Display of current values of temperature and humidity on the built-in OLED screen.
✅ Local parameter configuration (address, baud rate, filtering, etc.) using the built-in control buttons.
✅ Operation status indication (power, error, communication) via LED indicators.
✅ Digital signal filtering to improve measurement stability.
✅ RS-485 interface, Modbus RTU protocol — for data transmission within industrial networks, remote reading of parameters, and integration with external controllers or SCADA systems.
✅ Power supply range: 11 to 36 V DC.
✅ IP65 enclosure — protection against dust and moisture, suitable for installation in demanding environments.