T&D Corporation has introduced the NEW RTR-574, a Wireless 4 Channel Logger that monitors Illuminance, Ultra-Violet, Temperature and Humidity. In addition to these parameters, the RTR-574 is also capable of displaying Cumulative Illuminance and Cumulative Amount of Ultraviolet Light in the LCD display. The wide Luminosity range covers 0 to 130k lx and Low Light Resolution to 0.01 lx. The UV Range covers 0 to 30 mw/cm2. Internal Accumulation of Exposure is for both Light and UV. The RTR-574 has a wide range from 10 to 99% Relative Humidity along with an expanded Temperature range from 0° to +55°C. This compact, lightweight unit is approximately 2" X 3" and operates on one AA battery. The RTR-574 has a large data capacity which can store up to 8,000 readings times 4 channels for a total of 32,000 readings in One-Time or Endless recording mode. This unit is compatible with any RTR-500 Series Wireless Data Collector and can be used for automatic downloading of logged data, real time monitoring and warning notifications by email or text to cell phones.