5 pcs - 125kHz RFID Proximity ID Token Tag Key Keyfobs Keychain - UK seller

10mw Red Light Source Fiber Optic Identifier 270Hz 1KHz 2KHz Identifiable O6H3

3 pcs. Kingstate KPEG-350 Piezo Buzzer 85dB 2.8kHz 28V 7mA

400ST100 Prowave Transmitter , Ultrasonic , 40Khz , 10mm

400ST120 Prowave Transmitter , Ultrasonic , 40Khz , 12mm

400ET180 Prowave Transmitter , Ultrasonic , 40Khz , 18mm

400SR160 Prowave Receiver , Ultrasonic , 40Khz , 16mm

400SR16P Prowave Receiver , Ultrasonic , 40Khz , 16mm