Infrared Proximity ir
4-way infrared tracing
HC-SR501 PIR Motion Sensor
non-contact infrared thermometer GY-906-temperature
Obstacle avoidance sensor module InfraRed IR-08H
NRF24L01 long distance
SparkFun Particle Sensor Breakout - MAX30105
The SparkFun MAX30105 Particle Sensor is a flexible, powerful sensor enabling sensing of distance, heart rate, particle detection and even the blinking of an eye.
Get ready to be able to see like the Predator! The SparkFun Grid-EYE Infrared Array Breakout board is an 8×8 thermopile array, meaning you have a square array of 64 pixels capable of independent temperature detection.
IR Distance Adapter
This adapter lets you read Sharp distance sensors with a Phidgets Analog Input or VINT Hub port.
Sharp Distance Sensor (4-30cm)
Using reflected IR light, measure the distance of an opaque object 4-30cm away.