The item in the image is a fuel cap tester adapter, specifically the pink MotoRa
UNI-T SMD Multimeter Auto ohmmeter Cap Diode Tester Auto Scanning UT116A UT116C
Belden Power Path Electronic Ignition Analyzer 795015 Testing Tool
UNI-T UT116A SMD Tester Meter Multimeter LED Diode Continuity Battery Tester✦Kd
UNI-T UT116A SMD Tester Meter Multimeter LED Diode Continuity Battery Tester
UNI-T UT116A SMD Tester Meter Multimeter LED Diode Continuity Battery Tester New
UNI-T UT116C SMD Tester; Resistor / Capacitor SMD Digital Multimeter
UNI-T UT116C SMD Tester; Resistor / Capacitor SMD Digital Multimeter✦Kd
UNI-T UT116C Digital Smart SMD Tester Diode Continuity Resistor Capacitor Test
UT116A / UT116C Digital SMD Multimeter Auto Range DCV Continuity Battery Tester
Vintage Knight Model KG-375A Universal Auto Analyzer UNTESTED
UT116C Mini SMD Multimeter Tester Surface Mount Components Uni-T