Respironics Joey™ Dosimeter
The Joey Dosimeter is specifically designed to measure fiberoptic irradiance and validate the performance of the BiliTx and Wallaby 3 phototherapy systems between patients. The sensor head measures 20 square centimeters and calculates an average irradiance across the entire therapeutic spectral range of 425nm to 475nm when it is placed on the fiberoptic panel.
Results appear on a digital display. It uses one 9-volt battery.

