Elikliv Laser Detector for Green Beam Laser Level, Digital Laser Receiver Used with Pulsing Line Lasers Up to 200ft, Detect Green Laser Beams, Three-Sided LED Displays - Amazon.com
Amazon.com : Geekstory 5V Laser Receiver Sensor Detection Module Non-Modulator Tube for Arduino Geekstory(Pack of 5) : Electronics