Banner Engineering's SureCross Q45 Wireless Photoelectric Sensor

One solution is proprietary power management for extended battery life on two replaceable AA lithium batteries
Sept. 6, 2012
Designed for challenging data acquisition, control and monitoring applications, the self-contained SureCross Q45 wireless sensor improves efficiency with easy deployment and untethered communications. Eliminate cable runs and conduit, plus labor and costs. Sensing unplugged.