The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other.
The MEAS Vibration sensor is flexible and durable.
A simple flex sensor 4.5" in length. As the sensor is flexed, the resistance across the sensor increases. COOL! Add it to your clothes - ideal for interfacing with LilyPad Arduino!
The IESF-R-5 Pressure Sensor is a variable resistance sensor where the output resistance is proportional to the force applied to the bulb.
The Phidget 8/8/8 Interface Kit uses the USB interface to connect 8 analog inputs, 8 digital inputs and 8 digital outputs to your Phidgets sensor network.