S900 Dual Polarization is a compact board that able to polarize a 12 volt direct current (VDC) power supply to either positive or negative polarity. This capability makes the S900 Dual Polarization board versatile and efficient for a variety of electronic applications. Whether you need to power a motor, control a circuit, or switch the direction of current flow, the S900 board can easily adapt to your specific needs. This device is powered by a 3-volt battery. Customers can choose between 2 x AA batteries or 2 x AAA batteries. The S900 available on the LoRaWAN 915 MHz and 923 MHz frequency bands.