The W8-433M with Antennas ROHS is a high-power wireless module manufactured by DreamLNK. It is designed to provide ultra-long range wireless data transmission over either the ISM 868 – 870MHz frequency or the ISM 2400 – 2485 MHz frequency. It is designed for industrial applications, especially for remote monitoring and controlling systems, and home automation as well as other wireless applications. The module features high power output up to 21 dBm, with low power consumption and high sensitivity, and offer a transmission distance of up to 5 km in open space. It is built using the latest PIFA antenna technology, featuring a built-in antenna with a gain of 4 dBi. It is designed to meet RoHS standards and is resistant to a large range of industrial environmental conditions. The module is also compatible with various operating systems, including Windows, Linux, iOS, and Android.