Description
 
The Dual IR Detector can be used to make your creation follow a black line on a white background or a white line on a black background. It contains two IR detectors which can be used to control its output.
 
Features

The magnetic back of Neuron blocks makes it possible to place your gadget on a magnetic surface like whiteboards

The redesigned magnetic Pogo Pin-connectors effectively prevent blocks from being connected incorrectly
 
Specifications

Operating Voltage: DC 5V
Interface Type: Magnetic Pogo Pin
Drop Resistance: 1.5m
Operating Temperature: -10??C ~ 55??C
Operating Humidity: < 95%