Why the R450™ MIU? Neptune’s R450™ RF MIU is a high-power, two-way communication device available in both wall and pit mount configurations. The R450 MIU is designed to collect meter usage data and remotely transmits the information to tower-based collectors on a daily basis. The R450 MIU operates within the 450-470 MHz FCC-licensed bandwidth to deliver long-range transmissions and ensure maximized reading success rates. The R450 MIU reads the meter at midnight and transmits the midnight reading and previous 24-hour hourly consumption data each day to assist in managing customer billing disputes as well as Non-Revenue Water and conservation initiatives.