Outdoor Gas Sensor / OA4 【Features】 ● Small size, lightweight, waterproof quick connectors for easy installation. ● Automatic temperature compensation. ● RS-485 communication, optional Bluetooth communication. ● Public software for setting ID, baud rate, calibration, and other functions. ● Designed with a lightweight louvered outdoor casing, providing precise sensing, quick response, and high data transmission efficiency. ● Powered by both 24VDC and 5VDC. ● Optional options: TR/CO2/PM2.5/PM10/O2/NH3/H2S/dB/PR ● The device can calculate the Heat Index (HI) in real-time and provide the corresponding hazard level for reading. (Temperature and humidity options are required.) ● Optional JNC Cloud Box for direct NB-IoT cloud data transmission. ● Optional JNC BT function for forming a 100-point wireless monitoring network using a chessboard-like configuration. ● Four types of sensors are available for selection. 【Applications】 Suitable for use in orchards, greenhouses, mushroom farms, livestock farms, environmental monitoring, factory self-management, occupational safety and health, and restroom monitoring.