T&D Corp. offers the RTR-574, a wireless four-channel logger that monitors illuminance, ultra-violet, temperature, and humidity. In addition to these parameters, the RTR-574 is capable of displaying cumulative illuminance and cumulative amount of ultraviolet light in the LCD display. The wide luminosity range covers 0 to 130 k 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 2.0 x 3.0 in. and operates on one AA battery.

The RTR-574 has a large data capacity that can store up to 8,000 readings times four 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.