The SATWAY Water Level Controller Setup app is specifically designed for USB OTG Serial communication with the SATWAY AUTOMATIC WIRELESS WATER LEVEL CONTROLLER. Technicians on-site can utilize this app to seamlessly configure overflow height and low-level height settings for tanks in the SATWAY device. This app requires a USB OTG compatible Android device and the SATWAY AUTOMATIC WIRELESS WATER LEVEL CONTROLLER Device for setup. How to Use: Connect your SATWAY AUTOMATIC WIRELESS WATER LEVEL CONTROLLER to your Android device using a USB OTG cable. Launch the SATWAY Water Level Controller Setup app. Configure overflow and low-level height settings for your tank.