The SLMT2-1 intelligent temperature data acquisition module is a low-cost temperature state online monitoring practical professional module that supports RS232 and RS485 communication protocols and supports secondary development.
The SLMT2-1 intelligent temperature data collection module is designed for low‑cost, online temperature monitoring in a variety of industrial settings such as SMT production, electronics factories, cold storage, warehouses, pharmaceutical GMP systems, environmental monitoring and telecom equipment rooms. It uses the widely adopted MODBUS‑RTU protocol and supports RS232, RS485 and wireless interfaces, allowing flexible integration with serial communication software.
The manual provides technical parameters, wiring diagrams for RS232 and sensor bus connections, detailed Modbus command formats, installation steps for the accompanying Windows configuration software (SLMT2-1-12.exe), and instructions for sensor registration, data acquisition and optional accessories. Ordering information and part numbers for different channel configurations are also included. This manual is written in Chinese.
| Temperature measurement range | -55 °C ~ +125 °C |
|---|---|
| Sensor accuracy | ±0.5 °C |
| Resolution | 0.01 °C |
| Default baud rate | 9600 bps (configurable) |
| Communication ports | RS232, RS485 (optional wireless) |
| Power supply | DC 9 V 1 A |
| Supported channels | Configurable, up to 64 sensors per bus |
| Operating temperature | -40 °C ~ +85 °C |
| Dimensions | 90 × 66 × 26 mm |
The module includes an RS232 port and an RS485 port; a wireless option can be added via an external RS485‑to‑wireless converter.
Up to 64 DS18B20 temperature sensors can be connected on the sensor bus of one module.
The default baud rate is 9600 bps, but other rates can be customized.
Run the installer file named SLMT2-1-12.exe, follow the on‑screen prompts and click “Next” until the installation finishes.