Measuring from 4 to 20 mA currents the RTR-505-mA wireless current logger can be used to measure current directly or from the output of a wide variety of sensors. The unit has accuracy of ±0.05mA and resolution of 0.01mA and features a large LCD display, capacity for 16,000 readings, IP64 water resistance and up to 4 years battery life with the “L” version. It can be integrated into a wireless network with other logger types and can be monitored locally, through a cellular phone system, or anywhere in the world over the Internet. Other features include real-time monitoring and warning notifications. The communication range is up to 500 ft. which can be extended with the use of a repeater.