The GUDE Expert Sensor Box 7213-12 is a high-quality LAN-based sensor solution designed for monitoring temperature, humidity, and air pressure in professional environments. Featuring Power-over-Ethernet (PoE) support and robust construction, this device is ideal for data centers, industrial facilities, and smart building applications. LAN Connectivity: RJ45 Ethernet port (10/100 Mbit/s) for network integration. PoE Support: Power via Ethernet or external supply (no separate power adapter required). 2 × RJ45 connectors for optional sensors (temperature, humidity, air pressure). Built-In Sensors: Temperature and humidity monitoring. Temperature range: -20 °C to +80 °C (±0.3 °C typical). Humidity range: 0-100% RH (±3% typical). Construction: Powder-coated steel case with plastic sensor pipe. Compact Size: 100 × 34 × 90 mm (L×W×H), approx. Sensor pipe: -20-80 °C.