TandD’s Wireless Data Logger RTR-507/507L enables wide-range, high precision measurements of temperature and humidity. The company has achieved a humidity measurement accuracy of ±2.5%, as well as wide-range measurements of temperature from -30 to 80 C and humidity from 0 to 99%RH. By using the proprietary RTR-500 Series Base Unit, the recorded data in the RTR-507 can not only be collected via wireless communication, but can also be used for data monitoring, warning monitoring and data management through networks to construct a data logging system to match the needs and environment of the user. The logging capacity of the 507 is 8,000 data sets comprising both temperature and humidity. The 507L is available with an extended-life battery.