Below are the available bulk discount rates for each individual item when you purchase a certain amount
The ST Line Follower Sensor kit includes 4 of our popular ST Line Follower Sensors ST-00097 with hardware to assemble the sensors into standard robot chassis platforms and cables for connecting the sensors to the ST EDU or other carrier boards.
The ST Line Follower Sensors are very easy to use. Just connect with a standard 3-pin cable (usually called servo extension cable) and read as a digital device. Sensors can be wired to a breadboard or just connected to the headers of the ST EDU board ST-00101, or ST EDU-S board, or most other robotic boards (like BOE, Shield BOE, etc.).
For more information and sample code please visit the product page: http://simplytronics.com/products/ST-00098