The Magnum ME-BTS-15-F is a highly reliable and efficient battery temperature sensor with a 15ft cable suitable for use with ME/MS/RD inverters. This device is specifically designed to monitor the temperature of your battery, ensuring that it is within the required range for optimal performance. The Magnum ME-BTS-15 is also compatible with a wide range of electrical supplies and is perfect for use in alternative energy supplies such as solar panels and wind turbines. With this battery temperature sensor, you can be assured that your battery is always in optimum condition, making it perfect for use in home improvement and home & garden projects.