The TSOP1838 is a infrared receiver tuned to receive IR of frequency 38 kHz on;y. It is perfect for making obstacle sensors and to read signals from most IR remotes(TV, AC, Home Theatre Remotes, etc). When used as a receiver in distance sensors, it provides better performance as it allows better reception and protection from ambient light compared to other IR receivers. It can be used to read signals of most IR Remotes. Libraries are available for all popular microncontrollers, Arduino and Raspberry Pi to read the button pressed on the remote. Great receiver for making wireless projects, robots, home automation systems, etc
Note:- Picture is only for reference. Brand keeps on changing as per the availablity of the stock. Call for more info.