Technical & Electrical
The Supracontrol SMS20 is a high-sensitivity smoke detection sensor based on the Winsen MP-2 sensing element. It provides reliable early-warning smoke detection for ICT, industrial, and commercial environments. Designed for seamless RS-485 integration with Supracontrol controllers, it combines industrial durability with centralized monitoring and alarm management.
| Parameter | Value |
|---|---|
| System | |
| MCU | 32-bit ARM® Cortex® M0+ ultra-low-power microcontroller |
| Firmware | Bare-metal architecture ‒ C-based firmware |
| Sensor specification | |
| Sensor type | Winsen MP-2 smoke sensor |
| Characteristics | Target gas: C₃H₈ (propane), smoke Measuring range: 200–10,000 ppm equivalent Typical accuracy: ±1% after calibration in clean air |
| Physical | |
| Status LED | 1× bi-color LED for indicating device power and system status - Blinking Green: Sensor is initializing (few seconds after power-up) - Solid Green: Sensor is operational - Solid Red: One or more sensor values are in an alarm state |
| BUS port | Connector: 1× RJ45 Interfaces: RS-485 Protocols: SupraBUS (optional Modbus RTU) Features: Auto-discovery |
| Reset button | Push button for device reset. Primarily used for factory reset and sensor reinitialization. |
| Power | |
| Input voltage | 12 VDC nominal (8–15.5 V), with reverse polarity and over-voltage protection |
| Connector | RJ45 connector with integrated Power over Cable (PoC) for combined power and data |
| Consumption | Up to 0.4 W |
| Enclosure | |
| Material | Black ABS plastic, min. wall thickness 2.5 mm, fine-textured surface |
| Dimensions (W × H × D) | 62 × 28 × 62 mm (2.44 × 1.1 × 2.44 in) |
| Weight | 35 g (0.077 lbs) |
| Mounting options | Integrated DIN rail mounting bracket (TS35/7.5 and TS35/15) |
| Operating environment | |
| Temperature | -20 to 80 °C (-4 to 176 °F) |
| Humidity | 10 to 90 %RH non-condensing |
| Protection | IP30 |
| Storage conditions | |
| Temperature | -30 to 90 °C (-22 to 194 °F) |
| Humidity | 0 to 95 %RH non-condensing |
| Packaging | |
| Material | Double-wall corrugated fiberboard (E/B flute), fully recyclable |
| Dimensions (W × H × D) | 146 × 66 × 146 mm (5.75 × 2.6 × 5.75 in) |
| Weight | 125 g (0.275 lbs) |
| Management | |
| Centralized Management System (CMS) | The sensor connects to Supracontrol controllers via RS-485 bus and is centrally managed and configured through the Supracontrol Enterprise application. All measurement data and sensor status are sent to the platform for unified monitoring, logging, and configuration. Real-time sensor data is also accessible via the Supracontrol Mobile app. |