Infrared Proximity Sensor Long Range - Sharp GP2Y0A02YK0F is ideal for sensing objects within a 5 feet radius.
SparkFun 9DoF Sensor Stick is a sensor stick that is well equipped to detect movement.
Piezo Vibration Sensor - Large is a flexible sensor that can used to measure the vibration or any kind of movement.
Ultrasonic Sensor - HC-SR04 helps in range measurement over a particular distance.
SparkFun ToF Range Finder Breakout - VL6180 is a breakout board for the sensor that can measure distance in an accurate manner.
GPS Bee kit (with Mini Embedded Antenna) combines the Xbee with a GPS module for effective and flexible positioning system.
The FDC1004 is a single-chip IC for capacitance measurement for applications including proximity sensing and liquid level sensing.
The ADXL337 breakout is a small and compact board that can measure the acceleration.
Infrared proximity sensor is a short range sensor that can detect any physical presence using IR.
VL53L0X is a Time of flight(ToF) ranging sensor with high precision ranging which can measure a distance of up to 2m.
RPLIDAR A2 is the latest addition to the LIDAR family that rotates 360 degrees with a range of 6m and scan at the rate of 10Hz.