WSLRWEX-PID is a LoRaWAN sensor with Ex d explosion-proof approval and comes with a built-in high-performance PID (photoionisation detectors) technology sensor to detect the Volatile Organic Compounds (VOCs) and Hydrocarbon Gases in the air. It comes with Local LCD display, multi-colored status display, and magnet buttons for easy operation at field, without the need of turn off power and hot work permit. With 10.6 eV lamp allowing the instrument to detect a wide range of VOC gases whereas the TAC version utilises a 10.0 eV lamp to detect Total Aromatic Compounds (TACs), which helps focus on benzene. For LoRaWAN connectivity, it supports global frequency bands EU868, IN865, RU864, KR920, AS923, AS923-2, AU915, US915. The sensor can work perfectly with any LoRaWAN Gateway on the market. The PID gas sensor are ideal for detecting VOCs and TACs in areas such as refineries and petrol chemical facilities.