The HRUSB-MaxSonar-EZ1 is a great choice for use where sensitivity is needed along with side object rejection. The HRUSB-MaxSonar-EZ1 is a good, low-cost starting place for a customer not sure of which HRUSB-MaxSonar-EZ sensor to use.
The MaxBotix high resolution MB1403 HRUSB-MaxSonar-EZ0 has a wide and sensitive beam, making it an excellent choice for use where high sensitivity or people detection is desired.
The MaxBotix high resolution MB1423 HRUSB-MaxSonar-EZ2 is a good compromise between sensitivity and side object rejection.
This is 18AWG stranded (16x30) hookup wire sold by the foot. Great for hooking up light duty power components, etc. It is high quality tinned copper stranded wire with PVC jacket/insulation.
The Arduino TFT screen is a backlit LCD screen with headers. You can draw text, images, and shapes to the screen. There is an onboard micro-SD card slot on the back of the screen.